{ "dataset": "Fort Smith, AR storm events — 12-month window, 25-mile radius plus Sebastian 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": "2026-09-20T10:55:27.072+00:00", "window_days": 365, "schema_version": "2.0.0", "event_count": 124, "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": "asos-FSM-2026-09-07-79097", "lat": 35.3366, "lon": -94.3674, "zip": "", "city": "FORT SMITH MUNI", "date": "2026-09-07", "county": "Sebastian", "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": "FORT SMITH MUNI (FSM) recorded a 59 mph gust.", "sourceDetail": "AR_ASOS automated observation — FORT SMITH MUNI (FSM)", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "nws-alert-ac4810872e3049bb.001-Sebastia-wind", "zip": "", "city": "Sebastian", "date": "2026-09-07", "county": "Sebastian", "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 Sebastian. Severe Thunderstorm Warning issued September 7 at 4:03PM CDT until September 7 at 4:30PM CDT by NWS Tulsa OK", "sourceDetail": "NWS Tulsa OK — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-364" }, { "id": "iem-ww-TSA-SV-W-364-Sebastian-hail-2026-09-07", "zip": "", "city": "Sebastian", "date": "2026-09-07", "county": "Sebastian", "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 TSA for Sebastian on 2026-09-07. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-364" }, { "id": "nws-alert-bfe66c7754dc1a65.001-Sebastia-wind", "zip": "", "city": "Sebastian", "date": "2026-09-07", "county": "Sebastian", "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 Sebastian. Severe Thunderstorm Warning issued September 7 at 6:33PM CDT until September 7 at 7:00PM CDT by NWS Tulsa OK", "sourceDetail": "NWS Tulsa OK — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-365" }, { "id": "iem-ww-TSA-SV-W-365-Sebastian-hail-2026-09-07", "zip": "", "city": "Sebastian", "date": "2026-09-07", "county": "Sebastian", "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 TSA for Sebastian on 2026-09-07. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-365" }, { "id": "nws-alert-276040f1c7292ee8.001-Sebastia-wind-2026-08-26", "zip": "", "city": "", "date": "2026-08-26", "county": "Sebastian", "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 Sebastian. Severe Thunderstorm Watch issued August 26 at 3:09PM CDT until August 26 at 10:00PM CDT by NWS Tulsa OK", "sourceDetail": "NWS Tulsa OK — Severe Thunderstorm Watch", "evidenceLevel": "warning", "originStation": "Tulsa OK Weather Station", "warningProductKey": "TSA-SV-A-628" }, { "id": "iem-ww-TSA-SV-W-352-Sebastian-wind-2026-08-17", "zip": "", "city": "Sebastian", "date": "2026-08-17", "county": "Sebastian", "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 TSA for Sebastian on 2026-08-17. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-352" }, { "id": "iem-ww-TSA-SV-W-352-Sebastian-hail-2026-08-17", "zip": "", "city": "Sebastian", "date": "2026-08-17", "county": "Sebastian", "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 TSA for Sebastian on 2026-08-17. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-352" }, { "id": "iem-ww-TSA-SV-W-353-Sebastian-wind-2026-08-17", "zip": "", "city": "Sebastian", "date": "2026-08-17", "county": "Sebastian", "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 TSA for Sebastian on 2026-08-17. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-353" }, { "id": "iem-ww-TSA-SV-W-353-Sebastian-hail-2026-08-17", "zip": "", "city": "Sebastian", "date": "2026-08-17", "county": "Sebastian", "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 TSA for Sebastian on 2026-08-17. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-353" }, { "id": "asos-FSM-2026-08-17-4485", "lat": 35.3366, "lon": -94.3674, "zip": "", "city": "FORT SMITH MUNI", "date": "2026-08-17", "county": "Sebastian", "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": "FORT SMITH MUNI (FSM) recorded a 56 mph gust.", "sourceDetail": "AR_ASOS automated observation — FORT SMITH MUNI (FSM)", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "iem-ww-TSA-SV-W-323-Sebastian-wind-2026-07-06", "zip": "", "city": "Sebastian", "date": "2026-07-06", "county": "Sebastian", "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 TSA for Sebastian on 2026-07-06. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-323" }, { "id": "iem-ww-TSA-SV-W-323-Sebastian-hail-2026-07-06", "zip": "", "city": "Sebastian", "date": "2026-07-06", "county": "Sebastian", "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 TSA for Sebastian on 2026-07-06. Storm tag hail: 0.88\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.88, "warningProductKey": "TSA-SV-W-323" }, { "id": "iem-ww-TSA-SV-W-322-Sebastian-wind-2026-07-04", "zip": "", "city": "Sebastian", "date": "2026-07-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-07-04. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-322" }, { "id": "iem-ww-TSA-SV-W-322-Sebastian-hail-2026-07-04", "zip": "", "city": "Sebastian", "date": "2026-07-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-07-04. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-322" }, { "id": "iem-ww-TSA-SV-W-290-Sebastian-wind-2026-06-22", "zip": "", "city": "Sebastian", "date": "2026-06-22", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-22. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-290" }, { "id": "iem-ww-TSA-SV-W-290-Sebastian-hail-2026-06-22", "zip": "", "city": "Sebastian", "date": "2026-06-22", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-22. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-290" }, { "id": "iem-ww-TSA-SV-W-289-Sebastian-wind-2026-06-22", "zip": "", "city": "Sebastian", "date": "2026-06-22", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-22. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-289" }, { "id": "iem-ww-TSA-SV-W-289-Sebastian-hail-2026-06-22", "zip": "", "city": "Sebastian", "date": "2026-06-22", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-22. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-289" }, { "id": "iem-ww-TSA-SV-W-278-Sebastian-wind-2026-06-18", "zip": "", "city": "Sebastian", "date": "2026-06-18", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-18. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-278" }, { "id": "iem-ww-TSA-SV-W-278-Sebastian-hail-2026-06-18", "zip": "", "city": "Sebastian", "date": "2026-06-18", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-18. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-278" }, { "id": "spc-2026-06-06-94-0039", "lat": 35.19, "lon": -94.3, "zip": "", "city": "Excelsior", "date": "2026-06-06", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 90, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TDS from KSRX radar and reports of damage to trees and a barn roof in the area. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported" }, { "id": "spc-2026-06-06-95-0134", "lat": 35.39, "lon": -94.29, "zip": "", "city": "Barling", "date": "2026-06-06", "county": "Crawford", "source": "SPC Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 90, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Likely TDS from KSRX radar along with spotter report and picture of tornado from social media. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported" }, { "id": "iem-ww-TSA-TO-W-47-Sebastian-tornado-2026-06-06", "zip": "", "city": "Sebastian", "date": "2026-06-06", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-06. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "TSA-TO-W-47" }, { "id": "iem-ww-TSA-TO-W-49-Sebastian-tornado-2026-06-06", "zip": "", "city": "Sebastian", "date": "2026-06-06", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-06. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "TSA-TO-W-49" }, { "id": "iem-ww-TSA-TO-W-48-Sebastian-tornado-2026-06-06", "zip": "", "city": "Sebastian", "date": "2026-06-06", "county": "Sebastian", "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 TSA for Sebastian on 2026-06-06. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "TSA-TO-W-48" }, { "id": "spc-2026-05-08-122-0205", "lat": 35.41, "lon": -94.38, "zip": "", "city": "Van Buren", "date": "2026-05-08", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Relayed via spotter network. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-05-08-123-0207", "lat": 35.45, "lon": -94.35, "zip": "", "city": "Van Buren", "date": "2026-05-08", "county": "Crawford", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Relayed via spotter network. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-05-08-124-0209", "lat": 35.37, "lon": -94.4, "zip": "", "city": "Fort Smith", "date": "2026-05-08", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "(TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "spc-2026-05-08-125-0214", "lat": 35.37, "lon": -94.41, "zip": "", "city": "Fort Smith", "date": "2026-05-08", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Quarter (1.00 in.). (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-05-08-126-0214", "lat": 35.39, "lon": -94.38, "zip": "", "city": "Fort Smith", "date": "2026-05-08", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "(TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.75 }, { "id": "spc-2026-05-08-127-0215", "lat": 35.33, "lon": -94.32, "zip": "", "city": "Barling", "date": "2026-05-08", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Damage to vegetation reported. Time revised from radar estimate. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-lsr-2026-05-08-hail-35.35--94.31", "lat": 35.35, "lon": -94.31, "zip": "", "city": "2 N Barling", "date": "2026-05-08", "county": "Sebastian", "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.). Time estimated from radar.", "sourceDetail": "NWS TSA — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "spc-2026-05-08-128-0218", "lat": 35.33, "lon": -94.3, "zip": "", "city": "Barling", "date": "2026-05-08", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Quarter (1.00 in.). (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-05-08-hail-35.32--94.25", "lat": 35.32, "lon": -94.25, "zip": "", "city": "Central City", "date": "2026-05-08", "county": "Sebastian", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 0.92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Numerous dime to nickel size hail reported to broadcast media from Barling to Central City. Time estimated from radar.", "sourceDetail": "NWS TSA — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "iem-ww-TSA-SV-W-216-Sebastian-wind-2026-05-08", "zip": "", "city": "Sebastian", "date": "2026-05-08", "county": "Sebastian", "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 TSA for Sebastian on 2026-05-08. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-216" }, { "id": "iem-ww-TSA-SV-W-216-Sebastian-hail-2026-05-08", "zip": "", "city": "Sebastian", "date": "2026-05-08", "county": "Sebastian", "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 TSA for Sebastian on 2026-05-08. Storm tag hail: 2\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 2, "warningProductKey": "TSA-SV-W-216" }, { "id": "iem-ww-TSA-SV-W-219-Sebastian-wind-2026-05-08", "zip": "", "city": "Sebastian", "date": "2026-05-08", "county": "Sebastian", "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 TSA for Sebastian on 2026-05-08. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-219" }, { "id": "iem-ww-TSA-SV-W-219-Sebastian-hail-2026-05-08", "zip": "", "city": "Sebastian", "date": "2026-05-08", "county": "Sebastian", "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 TSA for Sebastian on 2026-05-08. Storm tag hail: 1.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1.5, "warningProductKey": "TSA-SV-W-219" }, { "id": "iem-ww-TSA-SV-W-221-Sebastian-wind-2026-05-08", "zip": "", "city": "Sebastian", "date": "2026-05-08", "county": "Sebastian", "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 TSA for Sebastian on 2026-05-08. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-221" }, { "id": "iem-ww-TSA-SV-W-221-Sebastian-hail-2026-05-08", "zip": "", "city": "Sebastian", "date": "2026-05-08", "county": "Sebastian", "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 TSA for Sebastian on 2026-05-08. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-221" }, { "id": "asos-bf-FSM-2026-05-08", "lat": 35.3366, "lon": -94.3674, "zip": "", "city": "FORT SMITH MUNI", "date": "2026-05-08", "county": "Sebastian", "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": "FORT SMITH MUNI (FSM) recorded a 54 mph gust.", "sourceDetail": "AR_ASOS automated observation — FORT SMITH MUNI (FSM) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "ncei-1325429-2026-05-08", "lon": 211953, "zip": "", "city": "OAK PARK", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening. The atmosphere became moderately unstable during the afternoon ahead of the cold front in eastern Oklahoma and northwestern Arkansas, and deep-layer wind shear increased across the region with the approach of an upper level disturbance. The combination of moderately strong instability and strong deep-layer wind shear resulted in some thunderstorms evolving into supercell thunderstorms, the strongest of which produced large hail up to golf ball size.", "sourceDetail": "Verified by Trained Spotter — NCEI Event #1325429", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "ncei-1340090-2026-05-08", "lon": 211953, "zip": "", "city": "FT SMITH", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Hail up to half dollar size damaged homes and vehicles.", "sourceDetail": "Verified by Trained Spotter — NCEI Event #1340090", "evidenceLevel": "official_backfill", "hailSizeInches": 1.25 }, { "id": "ncei-1340091-2026-05-08", "lon": 211953, "zip": "", "city": "FT SMITH", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Hail up to golf ball size damaged homes, businesses, and vehicles.", "sourceDetail": "Verified by Amateur Radio — NCEI Event #1340091", "evidenceLevel": "official_backfill", "hailSizeInches": 1.75 }, { "id": "ncei-1340143-2026-05-08", "lon": 211953, "zip": "", "city": "FT SMITH", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening. The atmosphere became moderately unstable during the afternoon ahead of the cold front in eastern Oklahoma and northwestern Arkansas, and deep-layer wind shear increased across the region with the approach of an upper level disturbance. The combination of moderately strong instability and strong deep-layer wind shear resulted in some thunderstorms evolving into supercell thunderstorms, the strongest of which produced large hail up to golf ball size.", "sourceDetail": "Verified by Public — NCEI Event #1340143", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "ncei-1340144-2026-05-08", "lon": 211953, "zip": "", "city": "BARLING", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Hail up to half dollar size damaged homes and vehicles.", "sourceDetail": "Verified by Public — NCEI Event #1340144", "evidenceLevel": "official_backfill", "hailSizeInches": 1.25 }, { "id": "ncei-1340145-2026-05-08", "lon": 211953, "zip": "", "city": "BARLING", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "moderate", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening. The atmosphere became moderately unstable during the afternoon ahead of the cold front in eastern Oklahoma and northwestern Arkansas, and deep-layer wind shear increased across the region with the approach of an upper level disturbance. The combination of moderately strong instability and strong deep-layer wind shear resulted in some thunderstorms evolving into supercell thunderstorms, the strongest of which produced large hail up to golf ball size.", "sourceDetail": "Verified by Public — NCEI Event #1340145", "evidenceLevel": "official_backfill", "hailSizeInches": 0.75 }, { "id": "ncei-1340146-2026-05-08", "lon": 211953, "zip": "", "city": "BARLING", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening. The atmosphere became moderately unstable during the afternoon ahead of the cold front in eastern Oklahoma and northwestern Arkansas, and deep-layer wind shear increased across the region with the approach of an upper level disturbance. The combination of moderately strong instability and strong deep-layer wind shear resulted in some thunderstorms evolving into supercell thunderstorms, the strongest of which produced large hail up to golf ball size.", "sourceDetail": "Verified by Public — NCEI Event #1340146", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "ncei-1340150-2026-05-08", "lon": 211953, "zip": "", "city": "CENTRAL CITY", "date": "2026-05-08", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "moderate", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong to severe thunderstorms developed across northeastern Oklahoma during the afternoon of the 8th, along a cold front approaching the region from the northwest. The thunderstorms spread into northwestern Arkansas during the evening. The atmosphere became moderately unstable during the afternoon ahead of the cold front in eastern Oklahoma and northwestern Arkansas, and deep-layer wind shear increased across the region with the approach of an upper level disturbance. The combination of moderately strong instability and strong deep-layer wind shear resulted in some thunderstorms evolving into supercell thunderstorms, the strongest of which produced large hail up to golf ball size.", "sourceDetail": "Verified by Public — NCEI Event #1340150", "evidenceLevel": "official_backfill", "hailSizeInches": 0.88 }, { "id": "iem-lsr-2026-04-28-hail-35.19--94.41", "lat": 35.19, "lon": -94.41, "zip": "", "city": "Hackett", "date": "2026-04-28", "county": "Sebastian", "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 Hackett", "sourceDetail": "NWS TSA — Fire Dept/Rescue via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-ww-TSA-SV-W-197-Sebastian-wind-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-197" }, { "id": "iem-ww-TSA-SV-W-197-Sebastian-hail-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-197" }, { "id": "iem-ww-TSA-SV-W-195-Sebastian-wind-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-195" }, { "id": "iem-ww-TSA-SV-W-195-Sebastian-hail-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag hail: 1.25\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1.25, "warningProductKey": "TSA-SV-W-195" }, { "id": "iem-ww-TSA-SV-W-190-Sebastian-wind-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-190" }, { "id": "iem-ww-TSA-SV-W-190-Sebastian-hail-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-190" }, { "id": "iem-ww-TSA-SV-W-194-Sebastian-wind-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-194" }, { "id": "iem-ww-TSA-SV-W-194-Sebastian-hail-2026-04-28", "zip": "", "city": "Sebastian", "date": "2026-04-28", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-28. Storm tag hail: 1.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1.75, "warningProductKey": "TSA-SV-W-194" }, { "id": "ncei-1330721-2026-04-28", "lon": 211948, "zip": "", "city": "HACKETT", "date": "2026-04-28", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "A couple rounds of strong to severe thunderstorms developed across northwestern Arkansas on the 28th, as a warm front stretched across the area and an upper level disturbance approached from the west. The atmosphere across the region was moderately unstable with strong deep-layer wind shear, the combination of which supported the development of some supercell thunderstorms. Very large hail up to three inches in diameter occurred with the strongest thunderstorms.", "sourceDetail": "Verified by Fire Department/Rescue — NCEI Event #1330721", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "spc-2026-04-25-207-0104", "lat": 35.02, "lon": -94.44, "zip": "", "city": "Hartford", "date": "2026-04-25", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Relayed from Hartford FD via HAM. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.75 }, { "id": "spc-2026-04-25-208-0110", "lat": 35.02, "lon": -94.41, "zip": "", "city": "Hartford", "date": "2026-04-25", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Time estimated from radar. (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 2.5 }, { "id": "iem-ww-TSA-SV-W-150-Sebastian-wind-2026-04-25", "zip": "", "city": "Sebastian", "date": "2026-04-25", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-25. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-150" }, { "id": "iem-ww-TSA-SV-W-150-Sebastian-hail-2026-04-25", "zip": "", "city": "Sebastian", "date": "2026-04-25", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-25. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-150" }, { "id": "iem-ww-TSA-SV-W-151-Sebastian-wind-2026-04-25", "zip": "", "city": "Sebastian", "date": "2026-04-25", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-25. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-151" }, { "id": "iem-ww-TSA-SV-W-151-Sebastian-hail-2026-04-25", "zip": "", "city": "Sebastian", "date": "2026-04-25", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-25. Storm tag hail: 2.5\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 2.5, "warningProductKey": "TSA-SV-W-151" }, { "id": "iem-ww-TSA-SV-W-145-Sebastian-wind-2026-04-25", "zip": "", "city": "Sebastian", "date": "2026-04-25", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-25. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-145" }, { "id": "iem-ww-TSA-SV-W-145-Sebastian-hail-2026-04-25", "zip": "", "city": "Sebastian", "date": "2026-04-25", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-25. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-145" }, { "id": "ncei-1329835-2026-04-25", "lon": 211944, "zip": "", "city": "HARTFORD", "date": "2026-04-25", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Hail up to golf ball size damaged homes and vehicles.", "sourceDetail": "Verified by Amateur Radio — NCEI Event #1329835", "evidenceLevel": "official_backfill", "hailSizeInches": 1.75 }, { "id": "ncei-1325048-2026-04-25", "lon": 211944, "zip": "", "city": "HARTFORD", "date": "2026-04-25", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "severe", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Hail up to tennis ball size damaged homes and vehicles.", "sourceDetail": "Verified by Broadcast Media — NCEI Event #1325048", "evidenceLevel": "official_backfill", "hailSizeInches": 2.5 }, { "id": "ncei-1329837-2026-04-25", "lon": 211944, "zip": "", "city": "GREENWOOD", "date": "2026-04-25", "county": "Sebastian", "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": "Strong thunderstorm wind snapped large tree limbs, some of which fell onto power lines.", "sourceDetail": "Verified by Emergency Manager — NCEI Event #1329837", "windSpeedMph": 56, "evidenceLevel": "official_backfill" }, { "id": "spc-2026-04-24-237-2252", "lat": 35.24, "lon": -94.44, "zip": "", "city": "Bonanza", "date": "2026-04-24", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Photo of hail shown next to a quarter. Hail appears to be approximately two quarters wide. Location was just west of Bonanza on the Oklahoma and Arkansas state line. Ti (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 2 }, { "id": "spc-2026-04-24-238-2254", "lat": 35.26, "lon": -94.41, "zip": "", "city": "Bonanza", "date": "2026-04-24", "county": "Sebastian", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Quarter (1.00 in.). (TSA)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-ww-TSA-SV-W-134-Sebastian-wind-2026-04-24", "zip": "", "city": "Sebastian", "date": "2026-04-24", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-24. Storm tag wind: 50 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 50, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-134" }, { "id": "iem-ww-TSA-SV-W-134-Sebastian-hail-2026-04-24", "zip": "", "city": "Sebastian", "date": "2026-04-24", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-24. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-134" }, { "id": "iem-ww-TSA-SV-W-131-Sebastian-wind-2026-04-24", "zip": "", "city": "Sebastian", "date": "2026-04-24", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-24. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-131" }, { "id": "iem-ww-TSA-SV-W-131-Sebastian-hail-2026-04-24", "zip": "", "city": "Sebastian", "date": "2026-04-24", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-24. Storm tag hail: 1.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1.75, "warningProductKey": "TSA-SV-W-131" }, { "id": "asos-bf-FSM-2026-04-24", "lat": 35.3366, "lon": -94.3674, "zip": "", "city": "FORT SMITH MUNI", "date": "2026-04-24", "county": "Sebastian", "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": "FORT SMITH MUNI (FSM) recorded a 51 mph gust.", "sourceDetail": "AR_ASOS automated observation — FORT SMITH MUNI (FSM) [365d backfill 2026-08]", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "ncei-1329687-2026-04-24", "lon": 211942, "zip": "", "city": "ENTERPRISE", "date": "2026-04-24", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "severe", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Large hail up to two inches in diameter damaged homes and vehicles.", "sourceDetail": "Verified by Storm Chaser — NCEI Event #1329687", "evidenceLevel": "official_backfill", "hailSizeInches": 2 }, { "id": "ncei-1329676-2026-04-24", "lon": 211942, "zip": "", "city": "ENTERPRISE", "date": "2026-04-24", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong thunderstorms developed into northeastern Oklahoma during the late evening of the 23rd, as a cold front moved into the area. These thunderstorms organized into a line of thunderstorms and moved into northwestern Arkansas during the early morning hours of the 24th, the strongest of which produced damaging wind. ||Another round of thunderstorms developed along the cold front over east central Oklahoma and west central Arkansas during the afternoon of the 24th. The strongest thunderstorms produced large hail up to two inches in diameter.", "sourceDetail": "Verified by Public — NCEI Event #1329676", "evidenceLevel": "official_backfill", "hailSizeInches": 1 }, { "id": "iem-ww-TSA-SV-W-105-Sebastian-wind-2026-04-15", "zip": "", "city": "Sebastian", "date": "2026-04-15", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-15. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-105" }, { "id": "iem-ww-TSA-SV-W-105-Sebastian-hail-2026-04-15", "zip": "", "city": "Sebastian", "date": "2026-04-15", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-15. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-105" }, { "id": "iem-ww-TSA-TO-W-31-Sebastian-tornado-2026-04-15", "zip": "", "city": "Sebastian", "date": "2026-04-15", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-15. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "TSA-TO-W-31" }, { "id": "ncei-1328767-2026-04-15", "lon": 211939, "zip": "", "city": "JENSON", "date": "2026-04-15", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree onto Highway 45.", "sourceDetail": "Verified by Amateur Radio — NCEI Event #1328767", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "ncei-1328771-2026-04-15", "lon": 211939, "zip": "", "city": "BONANZA", "date": "2026-04-15", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree onto Bear Hollow Road near Bear Hollow Heights.", "sourceDetail": "Verified by Amateur Radio — NCEI Event #1328771", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "ncei-1328851-2026-04-15", "lon": 211939, "zip": "", "city": "URSULA", "date": "2026-04-15", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree onto Highway 22 near Plantation Lane.", "sourceDetail": "Verified by Amateur Radio — NCEI Event #1328851", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "iem-ww-TSA-SV-W-79-Sebastian-wind-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-79" }, { "id": "iem-ww-TSA-SV-W-79-Sebastian-hail-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-79" }, { "id": "iem-ww-TSA-SV-W-80-Sebastian-wind-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-80" }, { "id": "iem-ww-TSA-SV-W-80-Sebastian-hail-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-80" }, { "id": "iem-ww-TSA-SV-W-81-Sebastian-wind-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. Storm tag wind: 70 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 70, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-81" }, { "id": "iem-ww-TSA-SV-W-81-Sebastian-hail-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-81" }, { "id": "iem-ww-TSA-TO-W-21-Sebastian-tornado-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "TSA-TO-W-21" }, { "id": "iem-ww-TSA-TO-W-22-Sebastian-tornado-2026-04-04", "zip": "", "city": "Sebastian", "date": "2026-04-04", "county": "Sebastian", "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 TSA for Sebastian on 2026-04-04. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Tornado Warning", "evidenceLevel": "warning", "warningProductKey": "TSA-TO-W-22" }, { "id": "ncei-1327254-2026-04-04", "lon": 211935, "zip": "", "city": "OAK PARK", "date": "2026-04-04", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree on Riverfront Drive near Williams Lane.", "sourceDetail": "Verified by Local Official — NCEI Event #1327254", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "asos-bf-FSM-2026-03-15", "lat": 35.3366, "lon": -94.3674, "zip": "", "city": "FORT SMITH MUNI", "date": "2026-03-15", "county": "Sebastian", "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": "FORT SMITH MUNI (FSM) recorded a 52 mph gust.", "sourceDetail": "AR_ASOS automated observation — FORT SMITH MUNI (FSM) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-ww-TSA-SV-W-63-Sebastian-wind-2026-03-11", "zip": "", "city": "Sebastian", "date": "2026-03-11", "county": "Sebastian", "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 TSA for Sebastian on 2026-03-11. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-63" }, { "id": "iem-ww-TSA-SV-W-63-Sebastian-hail-2026-03-11", "zip": "", "city": "Sebastian", "date": "2026-03-11", "county": "Sebastian", "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 TSA for Sebastian on 2026-03-11. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-63" }, { "id": "iem-ww-TSA-SV-W-60-Sebastian-wind-2026-03-11", "zip": "", "city": "Sebastian", "date": "2026-03-11", "county": "Sebastian", "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 TSA for Sebastian on 2026-03-11. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-60" }, { "id": "iem-ww-TSA-SV-W-60-Sebastian-hail-2026-03-11", "zip": "", "city": "Sebastian", "date": "2026-03-11", "county": "Sebastian", "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 TSA for Sebastian on 2026-03-11. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-60" }, { "id": "iem-ww-TSA-SV-W-61-Sebastian-wind-2026-03-11", "zip": "", "city": "Sebastian", "date": "2026-03-11", "county": "Sebastian", "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 TSA for Sebastian on 2026-03-11. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-61" }, { "id": "iem-ww-TSA-SV-W-61-Sebastian-hail-2026-03-11", "zip": "", "city": "Sebastian", "date": "2026-03-11", "county": "Sebastian", "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 TSA for Sebastian on 2026-03-11. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-61" }, { "id": "asos-bf-FSM-2026-03-11", "lat": 35.3366, "lon": -94.3674, "zip": "", "city": "FORT SMITH MUNI", "date": "2026-03-11", "county": "Sebastian", "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": "FORT SMITH MUNI (FSM) recorded a 50 mph gust.", "sourceDetail": "AR_ASOS automated observation — FORT SMITH MUNI (FSM) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "ncei-1318912-2026-03-11", "lon": 211081, "zip": "", "city": "OAK PARK", "date": "2026-03-11", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree in the River Park area.", "sourceDetail": "Verified by Local Official — NCEI Event #1318912", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "ncei-1318913-2026-03-11", "lon": 211081, "zip": "", "city": "SOUTH FT SMITH", "date": "2026-03-11", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree.", "sourceDetail": "Verified by Local Official — NCEI Event #1318913", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "ncei-1318910-2026-03-11", "lon": 211081, "zip": "", "city": "FT SMITH", "date": "2026-03-11", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down a tree.", "sourceDetail": "Verified by Local Official — NCEI Event #1318910", "windSpeedMph": 61, "evidenceLevel": "official_backfill" }, { "id": "ncei-1320911-2026-03-07", "lon": 211441, "zip": "", "city": "HARTFORD", "date": "2026-03-07", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down trees onto Highway 45 northeast of Hartford.", "sourceDetail": "Verified by Law Enforcement — NCEI Event #1320911", "windSpeedMph": 65, "evidenceLevel": "official_backfill" }, { "id": "ncei-1320914-2026-03-07", "lon": 211441, "zip": "", "city": "PRAIRIE CREEK", "date": "2026-03-07", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Strong thunderstorm wind blew down trees onto Highway 96 between Hartford and Mansfield.", "sourceDetail": "Verified by Law Enforcement — NCEI Event #1320914", "windSpeedMph": 65, "evidenceLevel": "official_backfill" }, { "id": "iem-lsr-2026-03-05-hail-35.42--94.37", "lat": 35.42, "lon": -94.37, "zip": "", "city": "2 SW Van Buren", "date": "2026-03-05", "county": "Sebastian", "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 2 SW Van Buren", "sourceDetail": "NWS TSA — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "ncei-1318036-2026-03-05", "lon": 210973, "zip": "", "city": "OAK PARK", "date": "2026-03-05", "county": "Sebastian", "source": "NCEI Storm Events Database", "severity": "moderate", "eventType": "hail", "confidence": 0.95, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Strong to severe thunderstorms developed into northwestern Arkansas during the evening of the 4th, ahead of a cold front moving into the region. The thunderstorms continued to affect the area through the early morning hours of the 5th. The strongest thunderstorms produced large hail up to golf ball size.", "sourceDetail": "Verified by Trained Spotter — NCEI Event #1318036", "evidenceLevel": "official_backfill", "hailSizeInches": 0.75 }, { "id": "fema-3636-Sebastian", "zip": "", "city": "Sebastian", "date": "2026-01-23", "county": "Sebastian", "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 WINTER STORM", "sourceDetail": "FEMA DR-3636: SEVERE WINTER STORM", "evidenceLevel": "official_backfill" }, { "id": "iem-ww-TSA-SV-W-487-Sebastian-wind-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-487" }, { "id": "iem-ww-TSA-SV-W-487-Sebastian-hail-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-487" }, { "id": "iem-ww-TSA-SV-W-488-Sebastian-wind-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-488" }, { "id": "iem-ww-TSA-SV-W-488-Sebastian-hail-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-488" }, { "id": "iem-ww-TSA-SV-W-486-Sebastian-wind-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-486" }, { "id": "iem-ww-TSA-SV-W-486-Sebastian-hail-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-486" }, { "id": "iem-ww-TSA-SV-W-493-Sebastian-wind-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-493" }, { "id": "iem-ww-TSA-SV-W-493-Sebastian-hail-2025-09-23", "zip": "", "city": "Sebastian", "date": "2025-09-23", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-23. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-493" }, { "id": "iem-ww-TSA-SV-W-470-Sebastian-wind-2025-09-22", "zip": "", "city": "Sebastian", "date": "2025-09-22", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-22. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-470" }, { "id": "iem-ww-TSA-SV-W-470-Sebastian-hail-2025-09-22", "zip": "", "city": "Sebastian", "date": "2025-09-22", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-22. Storm tag hail: 0.75\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 0.75, "warningProductKey": "TSA-SV-W-470" }, { "id": "iem-lsr-2025-09-21-hail-35.44--94.35", "lat": 35.44, "lon": -94.35, "zip": "", "city": "Van Buren", "date": "2025-09-21", "county": "Crawford", "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 Van Buren", "sourceDetail": "NWS TSA — Amateur Radio via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-ww-TSA-SV-W-469-Sebastian-wind-2025-09-21", "zip": "", "city": "Sebastian", "date": "2025-09-21", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-21. Storm tag wind: 60 mph. This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "windSpeedMph": 60, "evidenceLevel": "warning", "warningProductKey": "TSA-SV-W-469" }, { "id": "iem-ww-TSA-SV-W-469-Sebastian-hail-2025-09-21", "zip": "", "city": "Sebastian", "date": "2025-09-21", "county": "Sebastian", "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 TSA for Sebastian on 2025-09-21. Storm tag hail: 1\". This is a warning — not a confirmed event.", "sourceDetail": "NWS TSA — Severe Thunderstorm Warning", "evidenceLevel": "warning", "hailSizeInches": 1, "warningProductKey": "TSA-SV-W-469" } ] }