{ "dataset": "Ames, IA storm events — 12-month window, 25-mile radius plus Story records (floods and special weather statements excluded, matching the city page)", "license": "https://www.stormauditor.com/data-license", "provenance": "Consolidated by StormAuditor from public NOAA/NWS records (warnings, Local Storm Reports, NCEI Storm Events) under the published methodology at https://www.stormauditor.com/methodology", "refreshed_at": "2026-09-20T10:10:20.982+00:00", "window_days": 365, "schema_version": "2.0.0", "event_count": 225, "fields": { "id": "stable event identifier (source-derived)", "date": "event date (YYYY-MM-DD, local storm day)", "county": "county or county-equivalent (may be blank)", "city": "place name from the source record (LSR names may carry a distance/direction prefix)", "zip": "ZIP code when the source provides one (may be blank)", "eventType": "hazard tag: wind | hail | tornado | flood | lightning", "severity": "StormAuditor severity bucket (low|moderate|high|severe)", "evidenceLevel": "evidence level of the source record (warning|observed|...)", "confidence": "StormAuditor confidence score for the record (0-1, may be absent)", "windSpeedMph": "reported/estimated wind gust, mph (absent if n/a)", "hailSizeInches": "reported/estimated hail size, inches (absent if n/a)", "tornadoScale": "EF-scale rating when the source provides one (absent if n/a)", "damageTypes": "damage tags from the source narrative (may be absent)", "description": "source narrative excerpt (may be absent)", "source": "originating public record (NWS warning, LSR, NCEI, ...)", "sourceDetail": "issuing office / product detail for the source (may be absent)", "originStation": "reporting station identifier when applicable (may be absent)", "warningProductKey": "NWS warning product key for warning-derived rows (may be absent)", "lat": "event latitude (WGS84, may be blank)", "lon": "event longitude (WGS84, may be blank)", "rawWindSpeedMph": "source-reported wind value before display screening, mph (may be absent)", "windSpeedDisclaimer": "set when the wind value is a warning-projected figure rather than a measurement (may be absent)" }, "events": [ { "id": "spc-2026-09-08-wind-41.83-2", "lat": 41.83, "lon": -93.8, "zip": "", "city": "3 SSE Madrid", "date": "2026-09-08", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.93, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "wind reported near 3 SSE Madrid", "sourceDetail": "SPC filtered reports — 2026-09-08", "windSpeedMph": 74, "evidenceLevel": "reported" }, { "id": "spc-2026-09-08-wind-41.76-4", "lat": 41.76, "lon": -93.62, "zip": "", "city": "2 NW Ankeny", "date": "2026-09-08", "county": "Polk", "source": "SPC Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 0.93, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "wind reported near 2 NW Ankeny", "sourceDetail": "SPC filtered reports — 2026-09-08", "windSpeedMph": 75, "evidenceLevel": "reported" }, { "id": "nws-alert-ef7cd8aafaba52b4.001-Story-wind", "zip": "", "city": "Story", "date": "2026-09-08", "county": "Story", "source": "NWS Weather Alert", "severity": "high", "eventType": "wind", "confidence": 88, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Warning for Story. Severe Thunderstorm Warning issued September 8 at 6:04PM CDT until September 8 at 6:30PM CDT by NWS Des Moines IA", "sourceDetail": "NWS Des Moines IA — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-333" }, { "id": "iem-ww-DMX-SV-W-333-Story-hail-2026-09-08", "zip": "", "city": "Story", "date": "2026-09-08", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-09-08. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-333" }, { "id": "spc-2026-09-08-hail-41.73-1", "lat": 41.73, "lon": -93.6, "zip": "", "city": "Ankeny", "date": "2026-09-08", "county": "Polk", "source": "SPC Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 0.93, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "hail reported near Ankeny", "sourceDetail": "SPC filtered reports — 2026-09-08", "evidenceLevel": "reported", "hailSizeInches": 2.25 }, { "id": "iem-lsr-2026-09-08-hail-41.74--93.55", "lat": 41.74, "lon": -93.55, "zip": "", "city": "2 E Ankeny", "date": "2026-09-08", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Trained spotter reported largest hail around 1.5 inches and minor siding damage.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-lsr-2026-09-08-hail-41.70--93.48", "lat": 41.7, "lon": -93.48, "zip": "", "city": "1 NW Bondurant", "date": "2026-09-08", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Half Dollar (1.25 in.).", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-lsr-2026-09-08-hail-41.70--93.54", "lat": 41.7, "lon": -93.54, "zip": "", "city": "4 SE Ankeny", "date": "2026-09-08", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Relayed public photo of a hailstone estimated at half dollar sized. Time and location also estimated.", "sourceDetail": "NWS DMX — Broadcast Media via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "spc-2026-09-08-hail-41.70-2", "lat": 41.7, "lon": -93.48, "zip": "", "city": "1 NW Bondurant", "date": "2026-09-08", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.93, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "hail reported near 1 NW Bondurant", "sourceDetail": "SPC filtered reports — 2026-09-08", "evidenceLevel": "reported", "hailSizeInches": 1.75 }, { "id": "iem-lsr-2026-09-08-wind-41.77--93.58", "lat": 41.77, "lon": -93.58, "zip": "", "city": "3 NNE Ankeny", "date": "2026-09-08", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 3 NNE Ankeny", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "windSpeedMph": 68, "evidenceLevel": "reported" }, { "id": "iem-lsr-2026-09-08-wind-41.76--93.57", "lat": 41.76, "lon": -93.57, "zip": "", "city": "3 NE Ankeny", "date": "2026-09-08", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ankeny RWIS site measured a 71 MPH gust.", "sourceDetail": "NWS DMX — Other Federal via Iowa Mesonet", "windSpeedMph": 71, "evidenceLevel": "reported" }, { "id": "iem-lsr-2026-08-13-wind-41.84--93.64", "lat": 41.84, "lon": -93.64, "zip": "", "city": "2 NW Alleman", "date": "2026-08-13", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 61, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-08-13-wind-41.74--93.76", "lat": 41.74, "lon": -93.76, "zip": "", "city": "3 SW Polk City", "date": "2026-08-13", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-SV-W-322-Story-wind-2026-08-13", "zip": "", "city": "Story", "date": "2026-08-13", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "SV W for Story. Max wind tag: 60 mph.", "sourceDetail": "NWS DMX — SV/W", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-322" }, { "id": "iem-ww-DMX-SV-W-322-Story-hail-2026-08-13", "zip": "", "city": "Story", "date": "2026-08-13", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 0.75\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-322" }, { "id": "nws-alert-a58c68cc347bc4e6.001-Story-wind", "zip": "", "city": "Story", "date": "2026-08-13", "county": "Story", "source": "NWS Weather Alert", "severity": "high", "eventType": "wind", "confidence": 88, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Warning for Story. Severe Thunderstorm Warning issued August 13 at 7:11AM CDT until August 13 at 8:00AM CDT by NWS Des Moines IA", "sourceDetail": "NWS Des Moines IA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-323" }, { "id": "iem-ww-DMX-SV-W-323-Story-hail-2026-08-13", "zip": "", "city": "Story", "date": "2026-08-13", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 0.75\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-323" }, { "id": "nws-alert-8ef1c641b2dffd6f.001-Story-tornado", "zip": "", "city": "Story", "date": "2026-08-13", "county": "Story", "source": "NWS Weather Alert", "severity": "severe", "eventType": "tornado", "confidence": 88, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Tornado Warning for Story (observed tornado). Tornado Warning issued August 13 at 7:12AM CDT until August 13 at 7:15AM CDT by NWS Des Moines IA", "sourceDetail": "NWS Des Moines IA — Tornado Warning", "evidenceLevel": "observed", "warningProductKey": "DMX-TO-W-78" }, { "id": "iem-ww-DMX-TO-W-77-Story-tornado-2026-08-13", "zip": "", "city": "Story", "date": "2026-08-13", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TO W for Story.", "sourceDetail": "NWS DMX — TO/W", "evidenceLevel": "warning", "warningProductKey": "DMX-TO-W-77" }, { "id": "nws-alert-1f02e9b11d098ab1.001-Story-wind", "zip": "", "city": "Story", "date": "2026-08-12", "county": "Story", "source": "NWS Weather Alert", "severity": "high", "eventType": "wind", "confidence": 88, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Warning for Story. Severe Thunderstorm Warning issued August 12 at 8:38AM CDT until August 12 at 9:00AM CDT by NWS Des Moines IA", "sourceDetail": "NWS Des Moines IA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-318" }, { "id": "iem-ww-DMX-SV-W-318-Story-hail-2026-08-12", "zip": "", "city": "Story", "date": "2026-08-12", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 0.75\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-318" }, { "id": "spc-2026-08-12-wind-41.84-160", "lat": 41.84, "lon": -93.64, "zip": "", "city": "2 NW Alleman", "date": "2026-08-12", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.93, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "wind reported near 2 NW Alleman", "sourceDetail": "SPC filtered reports — 2026-08-12", "windSpeedMph": 61, "evidenceLevel": "reported" }, { "id": "nws-alert-9999ceb0f7822989.001-Story-wind", "zip": "", "city": "Story", "date": "2026-08-07", "county": "Story", "source": "NWS Weather Alert", "severity": "high", "eventType": "wind", "confidence": 72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Watch for Story. Severe Thunderstorm Watch issued August 7 at 1:41PM CDT until August 7 at 10:00PM CDT by NWS Des Moines IA", "sourceDetail": "NWS Des Moines IA — Severe Thunderstorm Watch", "evidenceLevel": "warning", "warningProductKey": "DMX-SV-A-541" }, { "id": "iem-202607202207-hail-42.31--93.56", "lat": 42.31, "lon": -93.56, "zip": "", "city": "1 ENE Ellsworth", "date": "2026-07-20", "county": "Hamilton", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 ENE Ellsworth, IA. Hail size: 2\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 2 }, { "id": "iem-202607202215-hail-42.22--93.50", "lat": 42.22, "lon": -93.5, "zip": "", "city": "4 N Roland", "date": "2026-07-20", "county": "Hamilton", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 4 N Roland, IA. Hail size: 1.75\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.75 }, { "id": "iem-202607202219-hail-42.19--93.48", "lat": 42.19, "lon": -93.48, "zip": "", "city": "2 NNE Roland", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 NNE Roland, IA. Hail size: 2.5\".", "sourceDetail": "NWS DMX — Storm Chaser via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 2.5 }, { "id": "iem-202607202226-hail-42.20--93.58", "lat": 42.2, "lon": -93.58, "zip": "", "city": "1 NE Story City", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 NE Story City, IA. Hail size: 2.75\".", "sourceDetail": "NWS DMX — Storm Chaser via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 2.75 }, { "id": "iem-202607210001-hail-41.97--93.82", "lat": 41.97, "lon": -93.82, "zip": "", "city": "Luther", "date": "2026-07-20", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Luther, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — NWS Employee via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202607210033-hail-41.78--93.59", "lat": 41.78, "lon": -93.59, "zip": "", "city": "3 SSE Alleman", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 SSE Alleman, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-07-20-wind-42.02--93.54", "lat": 42.02, "lon": -93.54, "zip": "", "city": "4 E Ames", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-07-20-wind-42.10--93.64", "lat": 42.1, "lon": -93.64, "zip": "", "city": "1 ESE Gilbert", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 62, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-07-20-wind-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 W Ankeny", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-geo-2026-07-20T21:55:00Z-tornado-42.34--93.73", "lat": 42.34, "lon": -93.73, "zip": "", "city": "4 S Kamrar", "date": "2026-07-20", "county": "Hamilton", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "tornado", "confidence": 92, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TORNADO reported near 4 S Kamrar, IA. Reports of Tornado on the ground.", "sourceDetail": "NWS DMX — Law Enforcement via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "ww-DMX-SV-W-285-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 23 min. Counties: Boone, Hamilton, Hardin, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #285 (23 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-285" }, { "id": "ww-DMX-SV-W-285-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 23 min. Counties: Boone, Hamilton, Hardin, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #285 (23 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-285" }, { "id": "ww-DMX-SV-W-287-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 48 min. Counties: Jasper, Marshall, Story. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #287 (48 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-287" }, { "id": "ww-DMX-SV-W-287-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 48 min. Counties: Jasper, Marshall, Story. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #287 (48 min)", "evidenceLevel": "warning", "hailSizeInches": 1.5, "warningProductKey": "DMX-SV-W-287" }, { "id": "ww-DMX-SV-W-289-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 26 min. Counties: Boone, Story. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #289 (26 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-289" }, { "id": "ww-DMX-SV-W-289-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 26 min. Counties: Boone, Story. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #289 (26 min)", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-289" }, { "id": "ww-DMX-SV-W-286-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 51 min. Counties: Hardin, Boone, Hamilton, Marshall, Story. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #286 (51 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-286" }, { "id": "ww-DMX-SV-W-286-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 51 min. Counties: Hardin, Boone, Hamilton, Marshall, Story. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #286 (51 min)", "evidenceLevel": "warning", "hailSizeInches": 1.5, "warningProductKey": "DMX-SV-W-286" }, { "id": "ww-DMX-SV-W-282-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 47 min. Counties: Marshall, Story. Storm tags: wind: 60.0, hail: 2.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #282 (47 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-282" }, { "id": "ww-DMX-SV-W-282-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 47 min. Counties: Marshall, Story. Storm tags: wind: 60.0, hail: 2.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #282 (47 min)", "evidenceLevel": "warning", "hailSizeInches": 2.75, "warningProductKey": "DMX-SV-W-282" }, { "id": "ww-DMX-SV-W-281-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 45 min. Counties: Story, Hamilton, Hardin. Storm tags: wind: 60.0, hail: 2.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #281 (45 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-281" }, { "id": "ww-DMX-SV-W-281-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 45 min. Counties: Story, Hamilton, Hardin. Storm tags: wind: 60.0, hail: 2.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #281 (45 min)", "evidenceLevel": "warning", "hailSizeInches": 2, "warningProductKey": "DMX-SV-W-281" }, { "id": "ww-DMX-SV-W-290-2026-07-20-Story-wind", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 43 min. Counties: Jasper, Polk, Boone, Story. Storm tags: wind: 70.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #290 (43 min)", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-290" }, { "id": "ww-DMX-SV-W-290-2026-07-20-Story-hail", "zip": "", "city": "", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-20. Duration: 43 min. Counties: Jasper, Polk, Boone, Story. Storm tags: wind: 70.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #290 (43 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-290" }, { "id": "iem-ww-DMX-TO-W-72-Story-tornado-2026-07-20", "zip": "", "city": "Story", "date": "2026-07-20", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TO W for Story.", "sourceDetail": "NWS DMX — TO/W", "evidenceLevel": "warning", "warningProductKey": "DMX-TO-W-72" }, { "id": "asos-bf-AMW-2026-07-20", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-07-20", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 56 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "iem-202607202335-wind-42.02--93.54", "lat": 42.02, "lon": -93.54, "zip": "", "city": "4 E Ames", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 4 E Ames, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202607202343-wind-42.10--93.64", "lat": 42.1, "lon": -93.64, "zip": "", "city": "1 ESE Gilbert", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 1 ESE Gilbert, IA. Peak gust: 71 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 71, "evidenceLevel": "observed" }, { "id": "iem-202607202346-wind-42.02--93.54", "lat": 42.02, "lon": -93.54, "zip": "", "city": "4 E Ames", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 4 E Ames, IA. Peak gust: 79 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 79, "evidenceLevel": "observed" }, { "id": "iem-202607210018-wind-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 W Ankeny", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 2 W Ankeny, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-07-20-wind-42.02--93.54", "lat": 42.02, "lon": -93.54, "zip": "", "city": "4 E Ames", "date": "2026-07-20", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-202607022225-hail-41.82--93.78", "lat": 41.82, "lon": -93.78, "zip": "", "city": "4 NW Polk City", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 4 NW Polk City, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "ww-DMX-SV-W-253-2026-07-02-Story-wind", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 25 min. Counties: Boone, Hamilton, Story, Webster, Jasper, Marshall, Polk. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #253 (25 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-253" }, { "id": "ww-DMX-SV-W-253-2026-07-02-Story-hail", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 25 min. Counties: Boone, Hamilton, Story, Webster, Jasper, Marshall, Polk. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #253 (25 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-253" }, { "id": "ww-DMX-SV-W-258-2026-07-02-Story-wind", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 32 min. Counties: Boone, Story, Polk. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #258 (32 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-258" }, { "id": "ww-DMX-SV-W-258-2026-07-02-Story-hail", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 32 min. Counties: Boone, Story, Polk. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #258 (32 min)", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-258" }, { "id": "ww-DMX-SV-W-260-2026-07-02-Story-wind", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 20 min. Counties: Jasper, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #260 (20 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-260" }, { "id": "ww-DMX-SV-W-260-2026-07-02-Story-hail", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 20 min. Counties: Jasper, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #260 (20 min)", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-260" }, { "id": "ww-DMX-SV-W-252-2026-07-02-Story-wind", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 45 min. Counties: Story, Hamilton, Hardin, Boone, Marshall, Webster, Wright. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #252 (45 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-252" }, { "id": "ww-DMX-SV-W-252-2026-07-02-Story-hail", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 45 min. Counties: Story, Hamilton, Hardin, Boone, Marshall, Webster, Wright. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #252 (45 min)", "evidenceLevel": "warning", "hailSizeInches": 1.5, "warningProductKey": "DMX-SV-W-252" }, { "id": "ww-DMX-SV-W-259-2026-07-02-Story-wind", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 30 min. Counties: Polk, Story. Storm tags: wind: 60.0, hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #259 (30 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-259" }, { "id": "ww-DMX-SV-W-259-2026-07-02-Story-hail", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 30 min. Counties: Polk, Story. Storm tags: wind: 60.0, hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #259 (30 min)", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-259" }, { "id": "ww-DMX-SV-W-257-2026-07-02-Story-wind", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 44 min. Counties: Polk, Story, Dallas, Boone. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #257 (44 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-257" }, { "id": "ww-DMX-SV-W-257-2026-07-02-Story-hail", "zip": "", "city": "", "date": "2026-07-02", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-07-02. Duration: 44 min. Counties: Polk, Story, Dallas, Boone. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #257 (44 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-257" }, { "id": "fema-4942-Story", "zip": "", "city": "Story", "date": "2026-07-01", "county": "Story", "source": "FEMA Declaration", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Federal disaster declaration: SEVERE STORMS AND FLOODING", "sourceDetail": "FEMA DR-4942: SEVERE STORMS AND FLOODING", "evidenceLevel": "official_backfill" }, { "id": "iem-lsr-2026-06-17-wind-42.35--93.71", "lat": 42.35, "lon": -93.71, "zip": "", "city": "3 SSE Kamrar", "date": "2026-06-17", "county": "Hamilton", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 63, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-06-17-wind-42.24--93.30", "lat": 42.24, "lon": -93.3, "zip": "", "city": "5 S Hubbard", "date": "2026-06-17", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-06-17-wind-42.17--93.21", "lat": 42.17, "lon": -93.21, "zip": "", "city": "3 NNW Saint Anthony", "date": "2026-06-17", "county": "Marshall", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 75, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-06-17-wind-42.08--93.63", "lat": 42.08, "lon": -93.63, "zip": "", "city": "2 SSE Gilbert", "date": "2026-06-17", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 60, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-06-17-wind-42.02--93.45", "lat": 42.02, "lon": -93.45, "zip": "", "city": "Nevada", "date": "2026-06-17", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Delayed report. Estimated peak wind gust in Nevada.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "windSpeedMph": 60, "evidenceLevel": "reported" }, { "id": "ww-DMX-SV-W-235-2026-06-17-Story-wind", "zip": "", "city": "", "date": "2026-06-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-06-17. Duration: 41 min. Counties: Franklin, Jasper, Marshall, Polk, Boone, Story. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #235 (41 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-235" }, { "id": "ww-DMX-SV-W-235-2026-06-17-Story-hail", "zip": "", "city": "", "date": "2026-06-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-06-17. Duration: 41 min. Counties: Franklin, Jasper, Marshall, Polk, Boone, Story. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #235 (41 min)", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-235" }, { "id": "asos-bf-AMW-2026-06-17", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-06-17", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 54 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "iem-202606171002-wind-42.35--93.71", "lat": 42.35, "lon": -93.71, "zip": "", "city": "3 SSE Kamrar", "date": "2026-06-17", "county": "Hamilton", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 3 SSE Kamrar, IA. Peak gust: 72 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 72, "evidenceLevel": "observed" }, { "id": "iem-202606171022-wind-42.24--93.30", "lat": 42.24, "lon": -93.3, "zip": "", "city": "5 S Hubbard", "date": "2026-06-17", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 5 S Hubbard, IA. Peak gust: 68 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 68, "evidenceLevel": "observed" }, { "id": "iem-202606171028-wind-42.17--93.21", "lat": 42.17, "lon": -93.21, "zip": "", "city": "3 NNW Saint Anthony", "date": "2026-06-17", "county": "Marshall", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 3 NNW Saint Anthony, IA. Peak gust: 86 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 86, "evidenceLevel": "observed" }, { "id": "iem-202606171029-wind-42.08--93.63", "lat": 42.08, "lon": -93.63, "zip": "", "city": "2 SSE Gilbert", "date": "2026-06-17", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 2 SSE Gilbert, IA. Peak gust: 69 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "observed" }, { "id": "iem-202606171040-wind-42.02--93.45", "lat": 42.02, "lon": -93.45, "zip": "", "city": "Nevada", "date": "2026-06-17", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near Nevada, IA. Peak gust: 69 mph.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "reported" }, { "id": "iem-ww-DMX-SV-W-234-Story-wind-2026-06-17", "zip": "", "city": "Story", "date": "2026-06-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-06-17. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-234" }, { "id": "iem-ww-DMX-SV-W-234-Story-hail-2026-06-17", "zip": "", "city": "Story", "date": "2026-06-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-06-17. Storm tag hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-234" }, { "id": "iem-ww-DMX-SV-W-232-Story-wind-2026-06-17", "zip": "", "city": "Story", "date": "2026-06-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-06-17. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-232" }, { "id": "iem-ww-DMX-SV-W-232-Story-hail-2026-06-17", "zip": "", "city": "Story", "date": "2026-06-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-06-17. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-232" }, { "id": "spc-2026-06-16-216-1002", "lat": 42.35, "lon": -93.71, "zip": "", "city": "Kamrar", "date": "2026-06-16", "county": "Hamilton", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 63, "evidenceLevel": "reported" }, { "id": "spc-2026-06-16-217-1022", "lat": 42.24, "lon": -93.3, "zip": "", "city": "Hubbard", "date": "2026-06-16", "county": "Hardin", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 59, "evidenceLevel": "reported" }, { "id": "spc-2026-06-16-218-1028", "lat": 42.17, "lon": -93.21, "zip": "", "city": "Saint Anthony", "date": "2026-06-16", "county": "Marshall", "source": "SPC Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 75, "evidenceLevel": "reported" }, { "id": "spc-2026-06-16-219-1029", "lat": 42.08, "lon": -93.63, "zip": "", "city": "Gilbert", "date": "2026-06-16", "county": "Story", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 60, "evidenceLevel": "reported" }, { "id": "spc-2026-06-16-222-1040", "lat": 42.02, "lon": -93.45, "zip": "", "city": "Nevada", "date": "2026-06-16", "county": "Story", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Delayed report. Estimated peak wind gust in Nevada. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 60, "evidenceLevel": "reported" }, { "id": "iem-lsr-2026-06-11-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2026-06-11", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Delayed entry - measured from KAMW.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 72, "evidenceLevel": "observed" }, { "id": "ww-DMX-SV-W-217-2026-06-11-Story-wind", "zip": "", "city": "", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-06-11. Duration: 52 min. Counties: Hamilton, Hardin, Marshall, Story, Butler, Franklin, Wright, Grundy, Lucas, Mahaska, Marion, Monroe, Wapello, Warren. Storm tags: wind: 70.0, hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #217 (52 min)", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-217" }, { "id": "ww-DMX-SV-W-217-2026-06-11-Story-hail", "zip": "", "city": "", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-06-11. Duration: 52 min. Counties: Hamilton, Hardin, Marshall, Story, Butler, Franklin, Wright, Grundy, Lucas, Mahaska, Marion, Monroe, Wapello, Warren. Storm tags: wind: 70.0, hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #217 (52 min)", "evidenceLevel": "warning", "hailSizeInches": 1.25, "warningProductKey": "DMX-SV-W-217" }, { "id": "iem-ww-DMX-TO-W-66-Story-tornado-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TO W for Story.", "sourceDetail": "NWS DMX — TO/W", "evidenceLevel": "warning", "warningProductKey": "DMX-TO-W-66" }, { "id": "asos-bf-AMW-2026-06-11", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-06-11", "county": "Story", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 73 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 73, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2026-06-11", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2026-06-11", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 55 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 55, "evidenceLevel": "observed" }, { "id": "iem-202606111253-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2026-06-11", "county": "Story", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 2 S Ames, IA. Peak gust: 83 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 83, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-SV-W-216-Story-wind-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "SV W for Story. Max wind tag: 60 mph.", "sourceDetail": "NWS DMX — SV/W", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-216" }, { "id": "iem-ww-DMX-SV-W-216-Story-hail-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 0.88\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-216" }, { "id": "iem-ww-DMX-SV-W-218-Story-wind-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "SV W for Story. Max wind tag: 60 mph.", "sourceDetail": "NWS DMX — SV/W", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-218" }, { "id": "iem-ww-DMX-SV-W-218-Story-hail-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 0.88\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-218" }, { "id": "iem-ww-DMX-SV-W-220-Story-wind-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-06-11. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-220" }, { "id": "iem-ww-DMX-SV-W-220-Story-hail-2026-06-11", "zip": "", "city": "Story", "date": "2026-06-11", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX for Story on 2026-06-11. Storm tag hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-220" }, { "id": "iem-lsr-2026-06-10-wind-42.22--93.46", "lat": 42.22, "lon": -93.46, "zip": "", "city": "4 NNE Roland", "date": "2026-06-10", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Delayed report. Peak wind gust from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-06-10-wind-42.26--93.35", "lat": 42.26, "lon": -93.35, "zip": "", "city": "4 SW Hubbard", "date": "2026-06-10", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Delayed report. Peak wind gust from a personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "ww-DMX-SV-W-206-2026-06-10-Story-wind", "zip": "", "city": "", "date": "2026-06-10", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-06-10. Duration: 42 min. Counties: Webster, Boone, Greene, Hamilton, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #206 (42 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-206" }, { "id": "ww-DMX-SV-W-206-2026-06-10-Story-hail", "zip": "", "city": "", "date": "2026-06-10", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-06-10. Duration: 42 min. Counties: Webster, Boone, Greene, Hamilton, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #206 (42 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-206" }, { "id": "iem-202606101546-wind-42.22--93.46", "lat": 42.22, "lon": -93.46, "zip": "", "city": "4 NNE Roland", "date": "2026-06-10", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 4 NNE Roland, IA. Peak gust: 79 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 79, "evidenceLevel": "observed" }, { "id": "iem-202606101600-wind-42.26--93.35", "lat": 42.26, "lon": -93.35, "zip": "", "city": "4 SW Hubbard", "date": "2026-06-10", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 4 SW Hubbard, IA. Peak gust: 77 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 77, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-SV-W-196-Story-wind-2026-06-10", "zip": "", "city": "Story", "date": "2026-06-10", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "SV W for Story. Max wind tag: 60 mph.", "sourceDetail": "NWS DMX — SV/W", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-196" }, { "id": "iem-ww-DMX-SV-W-196-Story-hail-2026-06-10", "zip": "", "city": "Story", "date": "2026-06-10", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "moderate", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 0.75\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-196" }, { "id": "iem-ww-DMX-SV-W-195-Story-wind-2026-06-06", "zip": "", "city": "Story", "date": "2026-06-06", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "SV W for Story. Max wind tag: 60 mph.", "sourceDetail": "NWS DMX — SV/W", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-195" }, { "id": "iem-ww-DMX-SV-W-195-Story-hail-2026-06-06", "zip": "", "city": "Story", "date": "2026-06-06", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "SV W for Story. Max hail tag: 1\".", "sourceDetail": "NWS DMX — SV/W", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-195" }, { "id": "ww-DMX-SV-W-179-2026-05-18-Story-wind", "zip": "", "city": "", "date": "2026-05-18", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-05-18. Duration: 52 min. Counties: Jasper, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #179 (52 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-179" }, { "id": "ww-DMX-SV-W-179-2026-05-18-Story-hail", "zip": "", "city": "", "date": "2026-05-18", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-05-18. Duration: 52 min. Counties: Jasper, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #179 (52 min)", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "DMX-SV-W-179" }, { "id": "asos-bf-AMW-2026-05-17", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-05-17", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 50 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "iem-202604240108-hail-41.69--93.61", "lat": 41.69, "lon": -93.61, "zip": "", "city": "1 NE Saylorville", "date": "2026-04-23", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 NE Saylorville, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-geo-2026-04-24T00:33:00Z-tornado-41.89--93.66", "lat": 41.89, "lon": -93.66, "zip": "", "city": "2 ENE Slater", "date": "2026-04-23", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "tornado", "confidence": 92, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TORNADO reported near 2 ENE Slater, IA. Several reports from local fire department and spotters of tornado on the ground.", "sourceDetail": "NWS DMX — Fire Dept/Rescue via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "ww-DMX-SV-W-115-2026-04-23-Story-wind", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 62 min. Counties: Boone, Greene, Hamilton, Hardin, Story, Webster. Storm tags: wind: 60.0, hail: 1.0\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #115 (62 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-115" }, { "id": "ww-DMX-SV-W-115-2026-04-23-Story-hail", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 62 min. Counties: Boone, Greene, Hamilton, Hardin, Story, Webster. Storm tags: wind: 60.0, hail: 1.0\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #115 (62 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-115" }, { "id": "ww-DMX-SV-W-119-2026-04-23-Story-wind", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 50 min. Counties: Grundy, Boone, Hamilton, Story, Hardin, Marshall. Storm tags: wind: 60.0, hail: 0.75\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #119 (50 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-119" }, { "id": "ww-DMX-SV-W-119-2026-04-23-Story-hail", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 50 min. Counties: Grundy, Boone, Hamilton, Story, Hardin, Marshall. Storm tags: wind: 60.0, hail: 0.75\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #119 (50 min)", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-119" }, { "id": "ww-DMX-SV-W-118-2026-04-23-Story-wind", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 40 min. Counties: Boone, Dallas, Jasper, Madison, Polk, Story, Warren. Storm tags: wind: 60.0, hail: 0.75\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #118 (40 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-118" }, { "id": "ww-DMX-SV-W-118-2026-04-23-Story-hail", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 40 min. Counties: Boone, Dallas, Jasper, Madison, Polk, Story, Warren. Storm tags: wind: 60.0, hail: 0.75\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #118 (40 min)", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "DMX-SV-W-118" }, { "id": "ww-DMX-SV-W-116-2026-04-23-Story-wind", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 56 min. Counties: Warren, Adair, Boone, Dallas, Guthrie, Madison, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #116 (56 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-116" }, { "id": "ww-DMX-SV-W-116-2026-04-23-Story-hail", "zip": "", "city": "", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-23. Duration: 56 min. Counties: Warren, Adair, Boone, Dallas, Guthrie, Madison, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\", tornado: POSSIBLE. This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #116 (56 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-116" }, { "id": "iem-ww-DMX-TO-W-21-Story-tornado-2026-04-23", "zip": "", "city": "Story", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TO W for Story.", "sourceDetail": "NWS DMX — TO/W", "evidenceLevel": "warning", "warningProductKey": "DMX-TO-W-21" }, { "id": "iem-ww-DMX-TO-W-25-Story-tornado-2026-04-23", "zip": "", "city": "Story", "date": "2026-04-23", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TO W for Story.", "sourceDetail": "NWS DMX — TO/W", "evidenceLevel": "warning", "warningProductKey": "DMX-TO-W-25" }, { "id": "iem-202604171858-hail-41.73--93.60", "lat": 41.73, "lon": -93.6, "zip": "", "city": "Ankeny", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Ankeny, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604171905-hail-41.68--93.57", "lat": 41.68, "lon": -93.57, "zip": "", "city": "3 E Saylorville", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 E Saylorville, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202604171921-hail-41.90--93.31", "lat": 41.9, "lon": -93.31, "zip": "", "city": "Collins", "date": "2026-04-17", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Collins, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "ww-DMX-SV-W-79-2026-04-17-Story-wind", "zip": "", "city": "", "date": "2026-04-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-17. Duration: 48 min. Counties: Jasper, Polk, Marshall, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #79 (48 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-79" }, { "id": "ww-DMX-SV-W-79-2026-04-17-Story-hail", "zip": "", "city": "", "date": "2026-04-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-17. Duration: 48 min. Counties: Jasper, Polk, Marshall, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #79 (48 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-79" }, { "id": "ww-DMX-SV-W-83-2026-04-17-Story-wind", "zip": "", "city": "", "date": "2026-04-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-17. Duration: 46 min. Counties: Tama, Story, Marshall, Poweshiek, Jasper. Storm tags: wind: 60.0, hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #83 (46 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-83" }, { "id": "ww-DMX-SV-W-83-2026-04-17-Story-hail", "zip": "", "city": "", "date": "2026-04-17", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-17. Duration: 46 min. Counties: Tama, Story, Marshall, Poweshiek, Jasper. Storm tags: wind: 60.0, hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #83 (46 min)", "evidenceLevel": "warning", "hailSizeInches": 1.25, "warningProductKey": "DMX-SV-W-83" }, { "id": "iem-202604151900-hail-42.19--93.62", "lat": 42.19, "lon": -93.62, "zip": "", "city": "1 W Story City", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 W Story City, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Law Enforcement via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604151904-hail-42.18--93.59", "lat": 42.18, "lon": -93.59, "zip": "", "city": "Story City", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Story City, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202604151909-hail-42.22--93.54", "lat": 42.22, "lon": -93.54, "zip": "", "city": "4 E Randall", "date": "2026-04-15", "county": "Hamilton", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 4 E Randall, IA. Hail size: 0.88\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "iem-202604152048-hail-41.90--93.31", "lat": 41.9, "lon": -93.31, "zip": "", "city": "Collins", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Collins, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Fire Dept/Rescue via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604160121-hail-42.07--93.63", "lat": 42.07, "lon": -93.63, "zip": "", "city": "3 N Ames", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 N Ames, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — NWS Employee via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202604160123-hail-42.08--93.63", "lat": 42.08, "lon": -93.63, "zip": "", "city": "2 SE Gilbert", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 SE Gilbert, IA. Hail size: 1.5\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-202604160124-hail-42.09--93.65", "lat": 42.09, "lon": -93.65, "zip": "", "city": "1 S Gilbert", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 S Gilbert, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Fire Dept/Rescue via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604160129-hail-41.88--93.82", "lat": 41.88, "lon": -93.82, "zip": "", "city": "Madrid", "date": "2026-04-15", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Madrid, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Emergency Mngr via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604160136-hail-42.08--93.54", "lat": 42.08, "lon": -93.54, "zip": "", "city": "6 NE Ames", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 6 NE Ames, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604160146-hail-42.15--93.40", "lat": 42.15, "lon": -93.4, "zip": "", "city": "1 SW Mccallsburg", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 SW Mccallsburg, IA. Hail size: 2\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 2 }, { "id": "iem-202604160147-hail-42.15--93.39", "lat": 42.15, "lon": -93.39, "zip": "", "city": "1 S Mccallsburg", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 S Mccallsburg, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Fire Dept/Rescue via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604160200-hail-41.98--93.43", "lat": 41.98, "lon": -93.43, "zip": "", "city": "3 SSE Nevada", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 SSE Nevada, IA. Hail size: 1.75\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.75 }, { "id": "iem-202604160208-hail-42.02--93.35", "lat": 42.02, "lon": -93.35, "zip": "", "city": "2 W Colo", "date": "2026-04-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 W Colo, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "ww-DMX-SV-W-51-2026-04-15-Story-wind", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 39 min. Counties: Hamilton, Franklin, Grundy, Hardin, Marshall, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #51 (39 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-51" }, { "id": "ww-DMX-SV-W-51-2026-04-15-Story-hail", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 39 min. Counties: Hamilton, Franklin, Grundy, Hardin, Marshall, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #51 (39 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-51" }, { "id": "ww-DMX-SV-W-77-2026-04-15-Story-wind", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 33 min. Counties: Story, Grundy, Hardin, Marshall, Tama. Storm tags: wind: 50.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #77 (33 min)", "windSpeedMph": 50, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-77" }, { "id": "ww-DMX-SV-W-77-2026-04-15-Story-hail", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 33 min. Counties: Story, Grundy, Hardin, Marshall, Tama. Storm tags: wind: 50.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #77 (33 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-77" }, { "id": "ww-DMX-SV-W-52-2026-04-15-Story-wind", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 40 min. Counties: Jasper, Polk, Story. Storm tags: wind: 60.0, hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #52 (40 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-52" }, { "id": "ww-DMX-SV-W-52-2026-04-15-Story-hail", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 40 min. Counties: Jasper, Polk, Story. Storm tags: wind: 60.0, hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #52 (40 min)", "evidenceLevel": "warning", "hailSizeInches": 1.25, "warningProductKey": "DMX-SV-W-52" }, { "id": "ww-DMX-SV-W-55-2026-04-15-Story-wind", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 49 min. Counties: Jasper, Story, Marshall. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #55 (49 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-55" }, { "id": "ww-DMX-SV-W-55-2026-04-15-Story-hail", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 49 min. Counties: Jasper, Story, Marshall. Storm tags: wind: 60.0, hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #55 (49 min)", "evidenceLevel": "warning", "hailSizeInches": 1.5, "warningProductKey": "DMX-SV-W-55" }, { "id": "ww-DMX-SV-W-73-2026-04-15-Story-wind", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 38 min. Counties: Hardin, Marshall, Story, Boone. Storm tags: wind: 50.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #73 (38 min)", "windSpeedMph": 50, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-73" }, { "id": "ww-DMX-SV-W-73-2026-04-15-Story-hail", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 38 min. Counties: Hardin, Marshall, Story, Boone. Storm tags: wind: 50.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #73 (38 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-73" }, { "id": "ww-DMX-SV-W-74-2026-04-15-Story-wind", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 59 min. Counties: Boone, Dallas, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #74 (59 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-74" }, { "id": "ww-DMX-SV-W-74-2026-04-15-Story-hail", "zip": "", "city": "", "date": "2026-04-15", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-04-15. Duration: 59 min. Counties: Boone, Dallas, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #74 (59 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-74" }, { "id": "iem-202604142154-hail-42.23--93.24", "lat": 42.23, "lon": -93.24, "zip": "", "city": "5 SW New Providence", "date": "2026-04-14", "county": "Hardin", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 5 SW New Providence, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "asos-bf-AMW-2026-04-08", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-04-08", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 57 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 57, "evidenceLevel": "observed" }, { "id": "iem-202603310312-hail-41.68--93.75", "lat": 41.68, "lon": -93.75, "zip": "", "city": "1 WNW Johnston", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 WNW Johnston, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-202603310316-hail-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 W Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 W Ankeny, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310317-hail-41.73--93.60", "lat": 41.73, "lon": -93.6, "zip": "", "city": "Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Ankeny, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Amateur Radio via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310320-hail-41.77--93.58", "lat": 41.77, "lon": -93.58, "zip": "", "city": "3 NNE Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 NNE Ankeny, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "ww-DMX-SV-W-8-2026-03-30-Story-wind", "zip": "", "city": "", "date": "2026-03-30", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-03-30. Duration: 67 min. Counties: Jasper, Boone, Dallas, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #8 (67 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-8" }, { "id": "ww-DMX-SV-W-8-2026-03-30-Story-hail", "zip": "", "city": "", "date": "2026-03-30", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-03-30. Duration: 67 min. Counties: Jasper, Boone, Dallas, Marshall, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #8 (67 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-8" }, { "id": "ww-DMX-SV-W-10-2026-03-30-Story-wind", "zip": "", "city": "", "date": "2026-03-30", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-03-30. Duration: 42 min. Counties: Jasper, Tama, Marshall, Polk, Poweshiek, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #10 (42 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-10" }, { "id": "ww-DMX-SV-W-10-2026-03-30-Story-hail", "zip": "", "city": "", "date": "2026-03-30", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-03-30. Duration: 42 min. Counties: Jasper, Tama, Marshall, Polk, Poweshiek, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #10 (42 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-10" }, { "id": "ww-DMX-SV-W-5-2026-03-30-Story-wind", "zip": "", "city": "", "date": "2026-03-30", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-03-30. Duration: 27 min. Counties: Dallas, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #5 (27 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-5" }, { "id": "ww-DMX-SV-W-5-2026-03-30-Story-hail", "zip": "", "city": "", "date": "2026-03-30", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2026-03-30. Duration: 27 min. Counties: Dallas, Polk, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #5 (27 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-5" }, { "id": "iem-202603310315-hail-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 WNW Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 WNW Ankeny, IA. Hail size: 0.88\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "asos-bf-AMW-2026-03-16", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-03-16", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2026-03-15", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-03-15", "county": "Story", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 60 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 60, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-03-15-wind-41.68--93.57", "lat": 41.68, "lon": -93.57, "zip": "", "city": "3 E Saylorville", "date": "2026-03-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Peak wind at AWOS station KIKV Ankeny Airport.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2026-03-15", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2026-03-15", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2026-03-15", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2026-03-15", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-202603160021-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2026-03-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 S Ames, IA. Peak gust: 68 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 68, "evidenceLevel": "observed" }, { "id": "iem-202603160140-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2026-03-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 S Ames, IA. Peak gust: 69 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "observed" }, { "id": "iem-202603160235-wind-41.68--93.57", "lat": 41.68, "lon": -93.57, "zip": "", "city": "3 E Saylorville", "date": "2026-03-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 3 E Saylorville, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-HW-W-3-Story-wind-2026-03-15", "zip": "", "city": "Story", "date": "2026-03-15", "county": "Story", "source": "IEM High Wind Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "HW W for Story.", "sourceDetail": "NWS DMX — HW/W", "evidenceLevel": "warning", "warningProductKey": "DMX-HW-W-3" }, { "id": "iem-lsr-2026-03-15-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2026-03-15", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "AWOS station KAMW 2 SSE Ames.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2026-03-13", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-03-13", "county": "Story", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 60 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 60, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2026-03-13", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2026-03-13", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 53 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 53, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2026-03-13", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2026-03-13", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-HW-W-2-Story-wind-2026-03-13", "zip": "", "city": "Story", "date": "2026-03-13", "county": "Story", "source": "IEM High Wind Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "HW W for Story.", "sourceDetail": "NWS DMX — HW/W", "evidenceLevel": "warning", "warningProductKey": "DMX-HW-W-2" }, { "id": "asos-bf-AMW-2026-02-18", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-02-18", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.86--93.90", "lat": 41.86, "lon": -93.9, "zip": "", "city": "1 ENE Woodward", "date": "2026-01-21", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 64, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.87--94.01", "lat": 41.87, "lon": -94.01, "zip": "", "city": "1 N Bouton", "date": "2026-01-21", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 62, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.79--93.53", "lat": 41.79, "lon": -93.53, "zip": "", "city": "1 W Elkhart", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Mesonet station UP752 0.6 W Elkhart (UPR).", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.82--93.80", "lat": 41.82, "lon": -93.8, "zip": "", "city": "4 SSE Madrid", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 65, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2026-01-21", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2026-01-21", "county": "Story", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2026-01-21", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2026-01-21", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 54 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "iem-202601212107-wind-41.86--93.90", "lat": 41.86, "lon": -93.9, "zip": "", "city": "1 ENE Woodward", "date": "2026-01-21", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 1 ENE Woodward, IA. Peak gust: 74 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 74, "evidenceLevel": "observed" }, { "id": "iem-202601212115-wind-41.87--94.01", "lat": 41.87, "lon": -94.01, "zip": "", "city": "1 N Bouton", "date": "2026-01-21", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 1 N Bouton, IA. Peak gust: 71 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 71, "evidenceLevel": "observed" }, { "id": "iem-202601212121-wind-41.79--93.53", "lat": 41.79, "lon": -93.53, "zip": "", "city": "1 W Elkhart", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 1 W Elkhart, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202601212128-wind-41.82--93.80", "lat": 41.82, "lon": -93.8, "zip": "", "city": "4 SSE Madrid", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 4 SSE Madrid, IA. Peak gust: 75 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 75, "evidenceLevel": "observed" }, { "id": "iem-202601212153-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2026-01-21", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 S Ames, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-HW-W-1-Story-wind-2026-01-21", "zip": "", "city": "Story", "date": "2026-01-21", "county": "Story", "source": "IEM High Wind Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "HW W for Story.", "sourceDetail": "NWS DMX — HW/W", "evidenceLevel": "warning", "warningProductKey": "DMX-HW-W-1" }, { "id": "asos-bf-BNW-2026-01-18", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2026-01-18", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 53 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 53, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2025-12-28", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2025-12-28", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2025-12-28", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2025-12-28", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 56 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2025-12-28", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2025-12-28", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 56 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2025-12-18", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2025-12-18", "county": "Boone", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2025-12-18", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2025-12-18", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 56 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "iem-202512182055-wind-42.05--93.85", "lat": 42.05, "lon": -93.85, "zip": "", "city": "2 E Boone", "date": "2025-12-18", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 E Boone, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2025-12-10", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2025-12-10", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 54 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2025-12-10", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2025-12-10", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 54 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2025-12-10", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2025-12-10", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 51 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "iem-202512101102-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2025-12-10", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 S Ames, IA. Peak gust: 62 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 62, "evidenceLevel": "observed" }, { "id": "iem-ww-DMX-HW-W-6-Story-wind-2025-12-10", "zip": "", "city": "Story", "date": "2025-12-10", "county": "Story", "source": "IEM High Wind Archive", "severity": "high", "eventType": "wind", "confidence": 0.72, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "HW W for Story.", "sourceDetail": "NWS DMX — HW/W", "evidenceLevel": "warning", "warningProductKey": "DMX-HW-W-6" }, { "id": "iem-lsr-2025-11-26-wind-42.03--93.83", "lat": 42.03, "lon": -93.83, "zip": "", "city": "3 ESE Boone", "date": "2025-11-26", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "AWOS station KBNW Boone Airport.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2025-11-26", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2025-11-26", "county": "Story", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 64 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 64, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2025-11-26", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2025-11-26", "county": "Boone", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-202511260715-wind-42.03--93.83", "lat": 42.03, "lon": -93.83, "zip": "", "city": "3 ESE Boone", "date": "2025-11-26", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 3 ESE Boone, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202511260940-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2025-11-26", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 S Ames, IA. Peak gust: 74 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 74, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2025-11-25", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2025-11-25", "county": "Story", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-BNW-2025-11-25", "lat": 42.0486, "lon": -93.8486, "zip": "", "city": "BOONE MUNI", "date": "2025-11-25", "county": "Boone", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "BOONE MUNI (BNW) recorded a 51 mph gust.", "sourceDetail": "IA_ASOS automated observation — BOONE MUNI (BNW) [365d backfill 2026-08]", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2025-11-25", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2025-11-25", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-202511260214-wind-41.99--93.62", "lat": 41.99, "lon": -93.62, "zip": "", "city": "2 S Ames", "date": "2025-11-25", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 2 S Ames, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "asos-bf-AMW-2025-10-21", "lat": 41.9904, "lon": -93.6185, "zip": "", "city": "Ames", "date": "2025-10-21", "county": "Story", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Ames (AMW) recorded a 51 mph gust.", "sourceDetail": "IA_ASOS automated observation — Ames (AMW) [365d backfill 2026-08]", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "ncei-1297890-2025-09-22", "lon": 208287, "zip": "", "city": "AMES", "date": "2025-09-22", "county": "Story", "source": "NCEI Storm Events Database", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Several large tree branches greater than 3 inches in diameter down around the city.", "sourceDetail": "Verified by Public — NCEI Event #1297890", "windSpeedMph": 50, "evidenceLevel": "official_backfill" }, { "id": "ww-DMX-SV-W-249-2025-09-22-Story-wind", "zip": "", "city": "", "date": "2025-09-22", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "wind", "confidence": 70, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Hurricane wind damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2025-09-22. Duration: 46 min. Counties: Wright, Hardin, Marshall, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #249 (46 min)", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "DMX-SV-W-249" }, { "id": "ww-DMX-SV-W-249-2025-09-22-Story-hail", "zip": "", "city": "", "date": "2025-09-22", "county": "Story", "source": "IEM Watch/Warn Archive", "severity": "high", "eventType": "hail", "confidence": 70, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS DMX on 2025-09-22. Duration: 46 min. Counties: Wright, Hardin, Marshall, Story. Storm tags: wind: 60.0, hail: 1.0\". This is a warning — not a confirmed event.", "sourceDetail": "NWS DMX — Severe Thunderstorm Warning #249 (46 min)", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "DMX-SV-W-249" } ] }