{ "dataset": "Milwaukee, WI storm events — 12-month window, 25-mile radius plus Milwaukee 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": "2026-09-20T09:15:16.886+00:00", "window_days": 365, "schema_version": "2.0.0", "event_count": 122, "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": "ww-MKX-SV-W-266-2026-09-04-Milwaukee-wind", "zip": "", "city": "", "date": "2026-09-04", "county": "Milwaukee", "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 MKX on 2026-09-04. Duration: 56 min. Counties: Dodge, Milwaukee, Ozaukee, Washington, Waukesha. Storm tags: wind: 70.0, hail: 1.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning #266 (56 min)", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-266" }, { "id": "ww-MKX-SV-W-266-2026-09-04-Milwaukee-hail", "zip": "", "city": "", "date": "2026-09-04", "county": "Milwaukee", "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 MKX on 2026-09-04. Duration: 56 min. Counties: Dodge, Milwaukee, Ozaukee, Washington, Waukesha. Storm tags: wind: 70.0, hail: 1.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning #266 (56 min)", "evidenceLevel": "warning", "hailSizeInches": 1.75, "warningProductKey": "MKX-SV-W-266" }, { "id": "nws-alert-dca457fd801c15b0.001-Waukesha-wind-2026-09-04", "lat": 43.17083333333333, "lon": -87.93666666666665, "zip": "", "city": "", "date": "2026-09-04", "county": "Waukesha", "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 Waukesha. Max wind: 60 mph. Severe Thunderstorm Warning issued September 4 at 12:54AM CDT until September 4 at 1:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max wind: 60 mph.", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-268" }, { "id": "nws-alert-dca457fd801c15b0.001-Waukesha-hail-2026-09-04", "lat": 43.17083333333333, "lon": -87.93666666666665, "zip": "", "city": "", "date": "2026-09-04", "county": "Waukesha", "source": "NWS Weather Alert", "severity": "high", "eventType": "hail", "confidence": 88, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning for Waukesha. Max hail: 1\". Severe Thunderstorm Warning issued September 4 at 12:54AM CDT until September 4 at 1:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max hail: 1\".", "evidenceLevel": "warning", "hailSizeInches": 1.75, "warningProductKey": "MKX-SV-W-268" }, { "id": "nws-alert-f83fc1b7625de8f2.002-Milwauke-wind-2026-09-04", "lat": 43.198, "lon": -87.945, "zip": "", "city": "", "date": "2026-09-04", "county": "Milwaukee", "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 Milwaukee. Max wind: 60 mph. Severe Thunderstorm Warning issued September 4 at 1:18AM CDT until September 4 at 1:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max wind: 60 mph.", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-268" }, { "id": "nws-alert-f83fc1b7625de8f2.002-Milwauke-hail-2026-09-04", "lat": 43.198, "lon": -87.945, "zip": "", "city": "", "date": "2026-09-04", "county": "Milwaukee", "source": "NWS Weather Alert", "severity": "high", "eventType": "hail", "confidence": 88, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning for Milwaukee. Max hail: 1\". Severe Thunderstorm Warning issued September 4 at 1:18AM CDT until September 4 at 1:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max hail: 1\".", "evidenceLevel": "warning", "hailSizeInches": 1.75, "warningProductKey": "MKX-SV-W-268" }, { "id": "nws-alert-2bbb06a39c14227b.001-Waukesha-wind-2026-09-03", "lat": 43.209999999999994, "lon": -87.98692307692305, "zip": "", "city": "", "date": "2026-09-03", "county": "Waukesha", "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 Waukesha. Max wind: 60 mph. Severe Thunderstorm Warning issued September 3 at 7:51AM CDT until September 3 at 8:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max wind: 60 mph.", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-260" }, { "id": "nws-alert-2bbb06a39c14227b.001-Waukesha-hail-2026-09-03", "lat": 43.209999999999994, "lon": -87.98692307692305, "zip": "", "city": "", "date": "2026-09-03", "county": "Waukesha", "source": "NWS Weather Alert", "severity": "high", "eventType": "hail", "confidence": 88, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning for Waukesha. Max hail: 1\". Severe Thunderstorm Warning issued September 3 at 7:51AM CDT until September 3 at 8:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max hail: 1\".", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "MKX-SV-W-260" }, { "id": "nws-alert-650b91d51a905c53.002-Milwauke-wind-2026-09-03", "lat": 43.15454545454545, "lon": -87.92181818181817, "zip": "", "city": "", "date": "2026-09-03", "county": "Milwaukee", "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 Milwaukee. Max wind: 60 mph. Severe Thunderstorm Warning issued September 3 at 8:23AM CDT until September 3 at 8:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max wind: 60 mph.", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-260" }, { "id": "nws-alert-650b91d51a905c53.002-Milwauke-hail-2026-09-03", "lat": 43.15454545454545, "lon": -87.92181818181817, "zip": "", "city": "", "date": "2026-09-03", "county": "Milwaukee", "source": "NWS Weather Alert", "severity": "high", "eventType": "hail", "confidence": 88, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning for Milwaukee. Max hail: 0.75\". Severe Thunderstorm Warning issued September 3 at 8:23AM CDT until September 3 at 8:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max hail: 0.75\".", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "MKX-SV-W-260" }, { "id": "nws-alert-650b91d51a905c53.002-Ozaukee-wind-2026-09-03", "lat": 43.15454545454545, "lon": -87.92181818181817, "zip": "", "city": "", "date": "2026-09-03", "county": "Ozaukee", "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 Ozaukee. Max wind: 60 mph. Severe Thunderstorm Warning issued September 3 at 8:23AM CDT until September 3 at 8:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max wind: 60 mph.", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-260" }, { "id": "nws-alert-650b91d51a905c53.002-Ozaukee-hail-2026-09-03", "lat": 43.15454545454545, "lon": -87.92181818181817, "zip": "", "city": "", "date": "2026-09-03", "county": "Ozaukee", "source": "NWS Weather Alert", "severity": "high", "eventType": "hail", "confidence": 88, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning for Ozaukee. Max hail: 0.75\". Severe Thunderstorm Warning issued September 3 at 8:23AM CDT until September 3 at 8:45AM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning Max hail: 0.75\".", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "MKX-SV-W-260" }, { "id": "iem-geo-2026-09-03T12:47:00Z-wind-43.26--88.19", "lat": 43.26, "lon": -88.19, "zip": "", "city": "2 NE Hubertus", "date": "2026-09-03", "county": "Washington", "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 DMG reported near 2 NE Hubertus, WI. Peak gust: 60 mph. Washington County EM reports widespread tree damage across Richfield, including uprooted trees. Estimated winds 60 mph, time estimated by radar.", "sourceDetail": "NWS MKX — Emergency Mngr via Iowa Mesonet (GeoJSON)", "windSpeedMph": 60, "evidenceLevel": "reported" }, { "id": "iem-lsr-2026-08-18-wind-43.12--88.03", "lat": 43.12, "lon": -88.03, "zip": "", "city": "2 ENE Butler", "date": "2026-08-18", "county": "Milwaukee", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "AWOS station KMWC Milwaukee Timmerman Airport reports 56 mph winds during thunderstorm.", "sourceDetail": "NWS MKX — AWOS via Iowa Mesonet", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "spc-2026-08-18-torn-43.22-1", "lat": 43.22, "lon": -88.23, "zip": "", "city": "1 SSW Hubertus", "date": "2026-08-18", "county": "Washington", "source": "SPC Storm Reports", "severity": "severe", "eventType": "tornado", "confidence": 0.93, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "tornado reported near 1 SSW Hubertus", "sourceDetail": "SPC filtered reports — 2026-08-18", "evidenceLevel": "reported" }, { "id": "nws-alert-cd196e0f6df92e6b.002-Milwauke-wind", "zip": "", "city": "Milwaukee", "date": "2026-08-18", "county": "Milwaukee", "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 Milwaukee. Severe Thunderstorm Warning issued August 18 at 7:04PM CDT until August 18 at 7:30PM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-255" }, { "id": "iem-ww-MKX-SV-W-255-Milwaukee-hail-2026-08-18", "zip": "", "city": "Milwaukee", "date": "2026-08-18", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-08-18. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-255" }, { "id": "iem-ww-MKX-SV-W-256-Milwaukee-wind-2026-08-18", "zip": "", "city": "Milwaukee", "date": "2026-08-18", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-08-18. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-256" }, { "id": "iem-ww-MKX-SV-W-256-Milwaukee-hail-2026-08-18", "zip": "", "city": "Milwaukee", "date": "2026-08-18", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-08-18. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-256" }, { "id": "nws-alert-b5652930d0f88354.001-Milwauke-tornado", "zip": "", "city": "Milwaukee", "date": "2026-08-18", "county": "Milwaukee", "source": "NWS Weather Alert", "severity": "severe", "eventType": "tornado", "confidence": 88, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Tornado Warning for Milwaukee (observed tornado). Tornado Warning issued August 18 at 7:12PM CDT until August 18 at 7:30PM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Tornado Warning", "evidenceLevel": "observed", "warningProductKey": "MKX-TO-W-85" }, { "id": "iem-lsr-2026-08-10-hail-42.93--88.07", "lat": 42.93, "lon": -88.07, "zip": "", "city": "1 W Hales Corners", "date": "2026-08-10", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Dime (0.75 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-lsr-2026-08-09-hail-42.86--88.35", "lat": 42.86, "lon": -88.35, "zip": "", "city": "1 SW Mukwonago", "date": "2026-08-09", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 SW Mukwonago", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-08-09-hail-42.87-9", "lat": 42.87, "lon": -88.29, "zip": "", "city": "2 E Mukwonago", "date": "2026-08-09", "county": "Waukesha", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.93, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "hail reported near 2 E Mukwonago", "sourceDetail": "SPC filtered reports — 2026-08-09", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "nws-alert-33f6403fbd0a104c.002-Milwauke-wind", "zip": "", "city": "Milwaukee", "date": "2026-08-09", "county": "Milwaukee", "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 Milwaukee. Severe Thunderstorm Warning issued August 9 at 11:41AM CDT until August 9 at 12:00PM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-239" }, { "id": "iem-ww-MKX-SV-W-239-Milwaukee-hail-2026-08-09", "zip": "", "city": "Milwaukee", "date": "2026-08-09", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-08-09. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-239" }, { "id": "spc-2026-07-27-hail-42.76-19", "lat": 42.76, "lon": -88.22, "zip": "", "city": "Waterford", "date": "2026-07-27", "county": "Racine", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.93, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "hail reported near Waterford", "sourceDetail": "SPC filtered reports — 2026-07-27", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-07-27-hail-43.06--88.39", "lat": 43.06, "lon": -88.39, "zip": "", "city": "1 S Delafield", "date": "2026-07-27", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 S Delafield", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-ww-MKX-SV-W-216-Milwaukee-wind-2026-07-27", "zip": "", "city": "Milwaukee", "date": "2026-07-27", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-07-27. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-216" }, { "id": "iem-ww-MKX-SV-W-216-Milwaukee-hail-2026-07-27", "zip": "", "city": "Milwaukee", "date": "2026-07-27", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-07-27. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "MKX-SV-W-216" }, { "id": "nws-alert-87a3abc2cd62aad4.001-Milwauke-wind", "zip": "", "city": "Milwaukee", "date": "2026-07-27", "county": "Milwaukee", "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 Milwaukee. Severe Thunderstorm Warning issued July 27 at 2:49PM CDT until July 27 at 3:30PM CDT by NWS Milwaukee/Sullivan WI", "sourceDetail": "NWS Milwaukee/Sullivan WI — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-224" }, { "id": "iem-ww-MKX-SV-W-224-Milwaukee-hail-2026-07-27", "zip": "", "city": "Milwaukee", "date": "2026-07-27", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-07-27. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "MKX-SV-W-224" }, { "id": "asos-MKE-2026-07-27-26024", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-07-27", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 53 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE)", "windSpeedMph": 53, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-07-02-hail-43.30--88.11", "lat": 43.3, "lon": -88.11, "zip": "", "city": "3 ESE Jackson", "date": "2026-07-02", "county": "Washington", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Trained spotter reports 1 inch diameter hail in Jackson.", "sourceDetail": "NWS MKX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-07-02-wind-43.14--88.11", "lat": 43.14, "lon": -88.11, "zip": "", "city": "1 SE Menomonee Falls", "date": "2026-07-02", "county": "Waukesha", "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": "Private weather station measures 64 MPH wind gust. Time confirmed from radar.", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "windSpeedMph": 64, "evidenceLevel": "reported" }, { "id": "iem-ww-MKX-SV-W-199-Milwaukee-wind-2026-07-02", "zip": "", "city": "Milwaukee", "date": "2026-07-02", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-07-02. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-199" }, { "id": "iem-ww-MKX-SV-W-199-Milwaukee-hail-2026-07-02", "zip": "", "city": "Milwaukee", "date": "2026-07-02", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-07-02. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-199" }, { "id": "iem-ww-MKX-SV-W-146-Milwaukee-wind-2026-06-17", "zip": "", "city": "Milwaukee", "date": "2026-06-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-06-17. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-146" }, { "id": "iem-ww-MKX-SV-W-146-Milwaukee-hail-2026-06-17", "zip": "", "city": "Milwaukee", "date": "2026-06-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-06-17. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-146" }, { "id": "iem-lsr-2026-06-11-wind-42.96--87.90", "lat": 42.96, "lon": -87.9, "zip": "", "city": "2 WSW Saint Francis", "date": "2026-06-11", "county": "Milwaukee", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Mitchell airport.", "sourceDetail": "NWS MKX — ASOS via Iowa Mesonet", "windSpeedMph": 53, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2026-06-11", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2026-06-11", "county": "Racine", "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": "RACINE (RAC) recorded a 54 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "iem-ww-MKX-SV-W-139-Milwaukee-wind-2026-06-11", "zip": "", "city": "Milwaukee", "date": "2026-06-11", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-06-11. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-139" }, { "id": "iem-ww-MKX-SV-W-139-Milwaukee-hail-2026-06-11", "zip": "", "city": "Milwaukee", "date": "2026-06-11", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-06-11. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-139" }, { "id": "asos-bf-MKE-2026-06-11", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-06-11", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 52 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-ww-MKX-SV-W-134-Milwaukee-wind-2026-06-10", "zip": "", "city": "Milwaukee", "date": "2026-06-10", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-06-10. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-134" }, { "id": "iem-ww-MKX-SV-W-134-Milwaukee-hail-2026-06-10", "zip": "", "city": "Milwaukee", "date": "2026-06-10", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-06-10. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-134" }, { "id": "asos-bf-MKE-2026-05-12", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-05-12", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 50 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-04-27-wind-42.96--87.91", "lat": 42.96, "lon": -87.91, "zip": "", "city": "2 WSW Saint Francis", "date": "2026-04-27", "county": "Milwaukee", "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": "More than 200 calls for downed trees and branches in Milwaukee. Some trees blocking roads_ and resting on homes and vehicles.", "sourceDetail": "NWS MKX — County Official via Iowa Mesonet", "windSpeedMph": 70, "evidenceLevel": "reported" }, { "id": "iem-lsr-2026-04-27-wind-42.96--87.90", "lat": 42.96, "lon": -87.9, "zip": "", "city": "KMKE Airport ASOS", "date": "2026-04-27", "county": "Milwaukee", "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": "ASOS Peak Wind Report_ 120-deg_ 67-kt_ 1832-zulu.", "sourceDetail": "NWS MKX — ASOS via Iowa Mesonet", "windSpeedMph": 77, "evidenceLevel": "observed" }, { "id": "asos-bf-MKE-2026-04-27", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-04-27", "county": "Milwaukee", "source": "IEM ASOS Station", "severity": "severe", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "MILWAUKEE (MKE) recorded a 77 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 77, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-04-21-hail-42.96--88.01", "lat": 42.96, "lon": -88.01, "zip": "", "city": "Greenfield", "date": "2026-04-21", "county": "Milwaukee", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Observation with pictures.", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-21-hail-42.96--87.90", "lat": 42.96, "lon": -87.9, "zip": "", "city": "2 WSW Saint Francis", "date": "2026-04-21", "county": "Milwaukee", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Milwaukee Airport Observer pictures.", "sourceDetail": "NWS MKX — Official NWS Obs via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-21-hail-42.95--87.92", "lat": 42.95, "lon": -87.92, "zip": "", "city": "3 W Saint Francis", "date": "2026-04-21", "county": "Milwaukee", "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: Quarter (1.00 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-21-hail-42.79--88.05", "lat": 42.79, "lon": -88.05, "zip": "", "city": "6 E Wind Lake", "date": "2026-04-21", "county": "Racine", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 6 E Wind Lake", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "iem-lsr-2026-04-21-hail-42.77--88.13", "lat": 42.77, "lon": -88.13, "zip": "", "city": "4 SE Wind Lake", "date": "2026-04-21", "county": "Racine", "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: Quarter (1.00 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-ww-MKX-SV-W-102-Milwaukee-wind-2026-04-21", "zip": "", "city": "Milwaukee", "date": "2026-04-21", "county": "Milwaukee", "source": "IEM Watch/Warn Archive", "severity": "moderate", "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 MKX for Milwaukee on 2026-04-21. Storm tag wind: 50 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 50, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-102" }, { "id": "iem-ww-MKX-SV-W-102-Milwaukee-hail-2026-04-21", "zip": "", "city": "Milwaukee", "date": "2026-04-21", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-21. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "MKX-SV-W-102" }, { "id": "ncei-1335077-2026-04-21", "lon": 213230, "zip": "", "city": "GREENFIELD", "date": "2026-04-21", "county": "Milwaukee", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Pictures provided.", "sourceDetail": "Verified by Public — NCEI Event #1335077", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "ncei-1335078-2026-04-21", "lon": 213230, "zip": "", "city": "(MKE)MITCHELL APT MI", "date": "2026-04-21", "county": "Milwaukee", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Pictures provided by the weather observer at Mitchell Field.", "sourceDetail": "Verified by Official NWS Observations — NCEI Event #1335078", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "iem-geo-2026-04-17-tornado-42.81--88.28", "lat": 42.81, "lon": -88.28, "zip": "", "city": "3 WNW Waterford North", "date": "2026-04-17", "county": "Racine", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 0.9, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "NWS Damage Survey concludes an EF-0 tornado occurred with estimated peak winds of 70 mph and a path width of 70 yards. This tornado began at the intersection of Wisconsin Hwy 83 and County Hwy O north of Waterford. This tornado then continued east, uprooting and snapping trees as well as lofting a porta-potty onto a building, before likely ending in the Tichigan State Wildlife Area. Time estimated from radar.", "sourceDetail": "NWS MKX — NWS Storm Survey via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-geo-2026-04-17-tornado-42.85--88.15", "lat": 42.85, "lon": -88.15, "zip": "", "city": "2 N Wind Lake", "date": "2026-04-17", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 0.9, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "NWS Damage Survey concludes an EF-0 tornado occurred with estimated peak winds of 70 mph and a width of 75 yards. The tornado started near the intersection of Kelsey Drive and Keiser Lane. This tornado then headed northeast causing tree damage before ending in the Big Muskego Lake Wildlife Area northeast of Keiser Lane. Time estimated from radar.", "sourceDetail": "NWS MKX — NWS Storm Survey via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-geo-2026-04-17-tornado-42.79--88.08", "lat": 42.79, "lon": -88.08, "zip": "", "city": "5 ESE Wind Lake", "date": "2026-04-17", "county": "Racine", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 0.9, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "NWS Damage Survey reported EF-0 Tornado, estimated peak winds of 80 mph. Began on west side of US-45 in northern Racine Co near North Cape and tracked northeast to 7 Mile Rd. Intermittent damage to a few trees, barn with portion of roof torn off and lofted. Time estimated from radar.", "sourceDetail": "NWS MKX — NWS Storm Survey via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-geo-2026-04-17-tornado-42.82--88.07", "lat": 42.82, "lon": -88.07, "zip": "", "city": "4 E Wind Lake", "date": "2026-04-17", "county": "Racine", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 0.9, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "NWS Damage Survey reported EF-1 Tornado, estimated peak winds of 100 mph. Began on west side of US-45 in northern Racine Co and tracked northeast to County Line Rd on the south side of Franklin in Milwaukee County. Many snapped and uprooted trees, barn damage, house roof damage, and a warehouse lost 50 percent of its roof. Time estimated from radar.", "sourceDetail": "NWS MKX — NWS Storm Survey via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-ww-MKX-SV-W-100-Milwaukee-wind-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-17. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-100" }, { "id": "iem-ww-MKX-SV-W-100-Milwaukee-hail-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-17. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-100" }, { "id": "iem-ww-MKX-SV-W-101-Milwaukee-wind-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-17. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-101" }, { "id": "iem-ww-MKX-SV-W-101-Milwaukee-hail-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-17. Storm tag hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "MKX-SV-W-101" }, { "id": "iem-ww-MKX-SV-W-98-Milwaukee-wind-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-17. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-98" }, { "id": "iem-ww-MKX-SV-W-98-Milwaukee-hail-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-17. Storm tag hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1.25, "warningProductKey": "MKX-SV-W-98" }, { "id": "iem-ww-MKX-TO-W-47-Milwaukee-tornado-2026-04-17", "zip": "", "city": "Milwaukee", "date": "2026-04-17", "county": "Milwaukee", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Tornado Warning issued by NWS MKX for Milwaukee on 2026-04-17. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "MKX-TO-W-47" }, { "id": "ncei-1329363-2026-04-17", "lon": 212527, "zip": "", "city": "FRANKLIN ARPT", "date": "2026-04-17", "county": "Milwaukee", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "tornado", "confidence": 0.95, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Tornado started near 6 Mile Rd west of Raynor Ave and tracked to the northeast, ending in southern Milwaukee county. Possible that this tornado merged with the other one directly to the south.", "sourceDetail": "Verified by NWS Storm Survey — NCEI Event #1329363", "tornadoScale": "EF1", "evidenceLevel": "official_backfill" }, { "id": "iem-lsr-2026-04-15-hail-42.94--88.05", "lat": 42.94, "lon": -88.05, "zip": "", "city": "Hales Corners", "date": "2026-04-15", "county": "Milwaukee", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Mping report out of Hales Corners. Time estimated from radar.", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-ww-MKX-SV-W-71-Milwaukee-wind-2026-04-15", "zip": "", "city": "Milwaukee", "date": "2026-04-15", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-15. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-71" }, { "id": "iem-ww-MKX-SV-W-71-Milwaukee-hail-2026-04-15", "zip": "", "city": "Milwaukee", "date": "2026-04-15", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-15. Storm tag hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "MKX-SV-W-71" }, { "id": "ncei-1330628-2026-04-15", "lon": 212207, "zip": "", "city": "HALES CORNERS", "date": "2026-04-15", "county": "Milwaukee", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Mping report of 1 inch diameter hail near Hales Corners.", "sourceDetail": "Verified by Public — NCEI Event #1330628", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.10--88.35", "lat": 43.1, "lon": -88.35, "zip": "", "city": "Hartland", "date": "2026-04-14", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Hartland", "sourceDetail": "NWS MKX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.20--88.27", "lat": 43.2, "lon": -88.27, "zip": "", "city": "3 SW Richfield", "date": "2026-04-14", "county": "Washington", "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: Quarter (1.00 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.18--88.13", "lat": 43.18, "lon": -88.13, "zip": "", "city": "2 N Menomonee Falls", "date": "2026-04-14", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Photo from social media with a tape measure. Time estimate from radar.", "sourceDetail": "NWS MKX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-lsr-2026-04-14-hail-43.19--88.25", "lat": 43.19, "lon": -88.25, "zip": "", "city": "3 S Richfield", "date": "2026-04-14", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 S Richfield", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-lsr-2026-04-14-hail-43.18--88.12", "lat": 43.18, "lon": -88.12, "zip": "", "city": "2 NNE Menomonee Falls", "date": "2026-04-14", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Photo from social media with a tape measure.", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 2 }, { "id": "iem-lsr-2026-04-14-hail-43.11--88.05", "lat": 43.11, "lon": -88.05, "zip": "", "city": "1 E Butler", "date": "2026-04-14", "county": "Milwaukee", "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: Quarter (1.00 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.22--88.10", "lat": 43.22, "lon": -88.1, "zip": "", "city": "1 SE Germantown", "date": "2026-04-14", "county": "Washington", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Photo from social media with coins. Time estimated from radar.", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.15--88.31", "lat": 43.15, "lon": -88.31, "zip": "", "city": "1 N Merton", "date": "2026-04-14", "county": "Waukesha", "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: Ping Pong Ball (1.50 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-lsr-2026-04-14-hail-43.17--88.10", "lat": 43.17, "lon": -88.1, "zip": "", "city": "2 NE Menomonee Falls", "date": "2026-04-14", "county": "Waukesha", "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: Quarter (1.00 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.24--88.12", "lat": 43.24, "lon": -88.12, "zip": "", "city": "Germantown", "date": "2026-04-14", "county": "Washington", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Germantown", "sourceDetail": "NWS MKX — Amateur Radio via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-hail-43.20--88.11", "lat": 43.2, "lon": -88.11, "zip": "", "city": "3 SSE Germantown", "date": "2026-04-14", "county": "Washington", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 SSE Germantown", "sourceDetail": "NWS MKX — Amateur Radio via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-lsr-2026-04-14-hail-43.21--88.11", "lat": 43.21, "lon": -88.11, "zip": "", "city": "2 SSE Germantown", "date": "2026-04-14", "county": "Washington", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 SSE Germantown", "sourceDetail": "NWS MKX — Amateur Radio via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-14-wind-43.11--88.04", "lat": 43.11, "lon": -88.04, "zip": "", "city": "2 E Butler", "date": "2026-04-14", "county": "Milwaukee", "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": "Timmerman Airport AWOS.", "sourceDetail": "NWS MKX — AWOS via Iowa Mesonet", "windSpeedMph": 61, "evidenceLevel": "observed" }, { "id": "iem-geo-2026-04-14-tornado-43.15--88.25", "lat": 43.15, "lon": -88.25, "zip": "", "city": "2 WNW Sussex", "date": "2026-04-14", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 0.9, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "NWS Storm Survey found EF2 tornado damage in the Town of Lisbon. Maximum winds 120 MPH. Path length 3.2 miles. Duration 6 minutes. Complete loss of roof on southern side of a building. Wind entered through garage door portal and lifted roof off. Small outbuilding destroyed. Shingles removed from other structures and garage doors pushed in. Trees uprooted and snapped.", "sourceDetail": "NWS MKX — NWS Storm Survey via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-geo-2026-04-14-tornado-43.15--88.24", "lat": 43.15, "lon": -88.24, "zip": "", "city": "1 NW Sussex", "date": "2026-04-14", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 0.9, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Radar confirmed. Time estimated by radar.", "sourceDetail": "NWS MKX — Trained Spotter via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-ww-MKX-SV-W-51-Milwaukee-wind-2026-04-14", "zip": "", "city": "Milwaukee", "date": "2026-04-14", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-14. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-51" }, { "id": "iem-ww-MKX-SV-W-51-Milwaukee-hail-2026-04-14", "zip": "", "city": "Milwaukee", "date": "2026-04-14", "county": "Milwaukee", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "hail", "confidence": 0.72, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Severe Thunderstorm Warning issued by NWS MKX for Milwaukee on 2026-04-14. Storm tag hail: 2\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 2, "warningProductKey": "MKX-SV-W-51" }, { "id": "iem-ww-MKX-SV-W-34-Milwaukee-wind-2026-04-14", "zip": "", "city": "Milwaukee", "date": "2026-04-14", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-14. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-34" }, { "id": "iem-ww-MKX-SV-W-34-Milwaukee-hail-2026-04-14", "zip": "", "city": "Milwaukee", "date": "2026-04-14", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-14. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-34" }, { "id": "iem-ww-MKX-TO-W-10-Milwaukee-tornado-2026-04-14", "zip": "", "city": "Milwaukee", "date": "2026-04-14", "county": "Milwaukee", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Tornado Warning issued by NWS MKX for Milwaukee on 2026-04-14. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "MKX-TO-W-10" }, { "id": "iem-ww-MKX-TO-W-20-Milwaukee-tornado-2026-04-14", "zip": "", "city": "Milwaukee", "date": "2026-04-14", "county": "Milwaukee", "source": "IEM Watch/Warn Archive", "severity": "severe", "eventType": "tornado", "confidence": 0.85, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Tornado Warning issued by NWS MKX for Milwaukee on 2026-04-14. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "MKX-TO-W-20" }, { "id": "asos-bf-MKE-2026-04-14", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-04-14", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 57 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 57, "evidenceLevel": "observed" }, { "id": "asos-bf-UES-2026-04-14", "lat": 43.041, "lon": -88.2371, "zip": "", "city": "WAUKESHA CNTY", "date": "2026-04-14", "county": "Waukesha", "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": "WAUKESHA CNTY (UES) recorded a 56 mph gust.", "sourceDetail": "WI_ASOS automated observation — WAUKESHA CNTY (UES) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "asos-bf-MWC-2026-04-14", "lat": 43.1104, "lon": -88.0344, "zip": "", "city": "MILWAUKEE/LAWREN", "date": "2026-04-14", "county": "Milwaukee", "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": "MILWAUKEE/LAWREN (MWC) recorded a 61 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE/LAWREN (MWC) [365d backfill 2026-08]", "windSpeedMph": 61, "evidenceLevel": "observed" }, { "id": "ncei-1330413-2026-04-14", "lon": 212188, "zip": "", "city": "MILWAUKEE TIMMERMAN AIRPORT", "date": "2026-04-14", "county": "Milwaukee", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Public report of 1 inch diameter hail east of Butler.", "sourceDetail": "Verified by Public — NCEI Event #1330413", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "iem-ww-MKX-SV-W-23-Milwaukee-wind-2026-04-02", "zip": "", "city": "Milwaukee", "date": "2026-04-02", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-02. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "MKX-SV-W-23" }, { "id": "iem-ww-MKX-SV-W-23-Milwaukee-hail-2026-04-02", "zip": "", "city": "Milwaukee", "date": "2026-04-02", "county": "Milwaukee", "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 MKX for Milwaukee on 2026-04-02. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS MKX — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "MKX-SV-W-23" }, { "id": "iem-lsr-2026-03-31-wind-42.73--88.03", "lat": 42.73, "lon": -88.03, "zip": "", "city": "3 NNE Union Grove", "date": "2026-03-31", "county": "Racine", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Wisconet site WIUGR (Yorkville) measured a wind gust of 51 mph.", "sourceDetail": "NWS MKX — Mesonet via Iowa Mesonet", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-03-31-wind-42.77--87.82", "lat": 42.77, "lon": -87.82, "zip": "", "city": "2 W North Bay", "date": "2026-03-31", "county": "Racine", "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": "ASOS station KRAC Racine-Batten Airport.", "sourceDetail": "NWS MKX — ASOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2026-03-31", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2026-03-31", "county": "Racine", "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": "RACINE (RAC) recorded a 66 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 66, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2026-03-22", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2026-03-22", "county": "Racine", "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": "RACINE (RAC) recorded a 50 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2026-03-16", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2026-03-16", "county": "Racine", "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": "RACINE (RAC) recorded a 58 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-MKE-2026-03-16", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-03-16", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 50 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "asos-bf-MKE-2026-03-15", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-03-15", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 60 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 60, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2026-03-15", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2026-03-15", "county": "Racine", "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": "RACINE (RAC) recorded a 63 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 63, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2026-03-13", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2026-03-13", "county": "Racine", "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": "RACINE (RAC) recorded a 61 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 61, "evidenceLevel": "observed" }, { "id": "asos-bf-MWC-2026-03-13", "lat": 43.1104, "lon": -88.0344, "zip": "", "city": "MILWAUKEE/LAWREN", "date": "2026-03-13", "county": "Milwaukee", "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": "MILWAUKEE/LAWREN (MWC) recorded a 52 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE/LAWREN (MWC) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "asos-bf-UES-2026-03-13", "lat": 43.041, "lon": -88.2371, "zip": "", "city": "WAUKESHA CNTY", "date": "2026-03-13", "county": "Waukesha", "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": "WAUKESHA CNTY (UES) recorded a 53 mph gust.", "sourceDetail": "WI_ASOS automated observation — WAUKESHA CNTY (UES) [365d backfill 2026-08]", "windSpeedMph": 53, "evidenceLevel": "observed" }, { "id": "asos-bf-MKE-2026-03-13", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-03-13", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 68 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 68, "evidenceLevel": "observed" }, { "id": "iem-ww-MKX-HW-W-1-Milwaukee-wind-2026-03-13", "zip": "", "city": "Milwaukee", "date": "2026-03-13", "county": "Milwaukee", "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 Milwaukee.", "sourceDetail": "NWS MKX — HW/W", "evidenceLevel": "warning", "warningProductKey": "MKX-HW-W-1" }, { "id": "iem-lsr-2026-03-10-hail-42.72--87.83", "lat": 42.72, "lon": -87.83, "zip": "", "city": "2 N Elmwood Park", "date": "2026-03-10", "county": "Racine", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Trained Spotter reports half to one inch sized hail.", "sourceDetail": "NWS MKX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "asos-bf-MKE-2026-01-09", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2026-01-09", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 50 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "asos-bf-MKE-2025-11-26", "lat": 42.9472, "lon": -87.8967, "zip": "", "city": "MILWAUKEE", "date": "2025-11-26", "county": "Milwaukee", "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": "MILWAUKEE (MKE) recorded a 54 mph gust.", "sourceDetail": "WI_ASOS automated observation — MILWAUKEE (MKE) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "asos-bf-RAC-2025-11-26", "lat": 42.7611, "lon": -87.8136, "zip": "", "city": "RACINE", "date": "2025-11-26", "county": "Racine", "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": "RACINE (RAC) recorded a 51 mph gust.", "sourceDetail": "WI_ASOS automated observation — RACINE (RAC) [365d backfill 2026-08]", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "iem-lsr-2025-09-22-hail-42.98--88.16", "lat": 42.98, "lon": -88.16, "zip": "", "city": "2 W New Berlin", "date": "2025-09-22", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Dime (0.75 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-lsr-2025-09-22-hail-42.93--88.07", "lat": 42.93, "lon": -88.07, "zip": "", "city": "1 W Hales Corners", "date": "2025-09-22", "county": "Waukesha", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Dime (0.75 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-lsr-2025-09-22-hail-42.90--88.02", "lat": 42.9, "lon": -88.02, "zip": "", "city": "1 NW Franklin", "date": "2025-09-22", "county": "Milwaukee", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Dime (0.75 in.).", "sourceDetail": "NWS MKX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "ncei-1291227-2025-09-22", "lon": 206964, "zip": "", "city": "ST MARTINS", "date": "2025-09-22", "county": "Milwaukee", "source": "NCEI Storm Events Database", "severity": "moderate", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Thunderstorms due to a cold front and upper level disturbance produced large hail and damaging winds to portions of southeast WI. A lightning fatality also occurred to a man on a hiking trail in the Township of Kewaskum.", "sourceDetail": "Verified by Public — NCEI Event #1291227", "evidenceLevel": "official_backfill", "hailSizeInches": 0.75 } ] }