{ "dataset": "Des Moines, IA storm events — 12-month window, 25-mile radius (floods and special weather statements excluded, matching the city page)", "license": "https://www.stormauditor.com/data-license", "provenance": "Deduplicated 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": "2026-08-24T09:20:12.401+00:00", "window_days": 365, "event_count": 130, "fields": { "date": "Event date (YYYY-MM-DD, local storm day)", "county": "County or county-equivalent", "city": "Nearest city/place named in the source record", "event_type": "hazard tag: wind | hail | tornado | flood | lightning", "severity": "StormAuditor severity bucket (low|moderate|high|severe)", "evidence": "evidence level of the source record", "wind_mph": "reported/estimated wind gust, mph (blank if n/a)", "hail_in": "reported/estimated hail size, inches (blank if n/a)", "source": "originating public record (NWS warning, LSR, NCEI, ...)", "lat": "event latitude (WGS84, may be blank)", "lon": "event longitude (WGS84, may be blank)" }, "events": [ { "id": "iem-lsr-2026-08-13-wind-41.84--93.64", "lat": 41.84, "lon": -93.64, "zip": "", "city": "2 NW Alleman", "date": "2026-08-13", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 61, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-08-13-wind-41.74--93.76", "lat": 41.74, "lon": -93.76, "zip": "", "city": "3 SW Polk City", "date": "2026-08-13", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "spc-2026-08-12-wind-41.84-160", "lat": 41.84, "lon": -93.64, "zip": "", "city": "2 NW Alleman", "date": "2026-08-12", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.93, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "wind reported near 2 NW Alleman", "sourceDetail": "SPC filtered reports — 2026-08-12", "windSpeedMph": 61, "evidenceLevel": "reported" }, { "id": "iem-202607210033-hail-41.78--93.59", "lat": 41.78, "lon": -93.59, "zip": "", "city": "3 SSE Alleman", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 SSE Alleman, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202607210207-hail-41.57--93.75", "lat": 41.57, "lon": -93.75, "zip": "", "city": "West Des Moines", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near West Des Moines, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202607210213-hail-41.59--93.84", "lat": 41.59, "lon": -93.84, "zip": "", "city": "2 SE Waukee", "date": "2026-07-20", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 SE Waukee, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-07-20-wind-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 W Ankeny", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-07-20-wind-41.69--93.40", "lat": 41.69, "lon": -93.4, "zip": "", "city": "3 NW Mitchellville", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "measured from personal weather station.", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "windSpeedMph": 61, "evidenceLevel": "reported" }, { "id": "iem-lsr-2026-07-20-wind-41.38--93.40", "lat": 41.38, "lon": -93.4, "zip": "", "city": "1 NW Sandyville", "date": "2026-07-20", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 1 NW Sandyville", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "windSpeedMph": 61, "evidenceLevel": "reported" }, { "id": "iem-202607210018-wind-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 W Ankeny", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 2 W Ankeny, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202607210035-wind-41.69--93.40", "lat": 41.69, "lon": -93.4, "zip": "", "city": "3 NW Mitchellville", "date": "2026-07-20", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 3 NW Mitchellville, IA. Peak gust: 70 mph.", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "windSpeedMph": 70, "evidenceLevel": "reported" }, { "id": "iem-202607210101-wind-41.38--93.40", "lat": 41.38, "lon": -93.4, "zip": "", "city": "1 NW Sandyville", "date": "2026-07-20", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 1 NW Sandyville, IA. Peak gust: 70 mph.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "windSpeedMph": 70, "evidenceLevel": "reported" }, { "id": "iem-geo-2026-07-21T01:07:00Z-wind-41.39--93.27", "lat": 41.39, "lon": -93.27, "zip": "", "city": "Pleasantville", "date": "2026-07-20", "county": "Marion", "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 Pleasantville, IA. Peak gust: 60 mph. Caller reports multiple trees down with a wind gust of 60 mph.", "sourceDetail": "NWS DMX — Public via Iowa Mesonet (GeoJSON)", "windSpeedMph": 60, "evidenceLevel": "reported" }, { "id": "spc-2026-07-20-54-0018", "lat": 41.74, "lon": -93.64, "zip": "", "city": "Ankeny", "date": "2026-07-20", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 58, "evidenceLevel": "reported" }, { "id": "spc-2026-07-20-55-0035", "lat": 41.69, "lon": -93.4, "zip": "", "city": "Mitchellville", "date": "2026-07-20", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "measured from personal weather station. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 61, "evidenceLevel": "reported" }, { "id": "spc-2026-07-20-56-0101", "lat": 41.38, "lon": -93.4, "zip": "", "city": "Sandyville", "date": "2026-07-20", "county": "Warren", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "(DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 61, "evidenceLevel": "reported" }, { "id": "spc-2026-07-20-74-0033", "lat": 41.78, "lon": -93.59, "zip": "", "city": "Alleman", "date": "2026-07-20", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "(DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-07-20-76-0213", "lat": 41.59, "lon": -93.84, "zip": "", "city": "Waukee", "date": "2026-07-20", "county": "Dallas", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "(DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-07-04-wind-41.51--93.51", "lat": 41.51, "lon": -93.51, "zip": "", "city": "1 WNW Carlisle", "date": "2026-07-04", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-07-04-wind-41.54--93.66", "lat": 41.54, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2026-07-04", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near Des Moines Int Airport", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2026-07-04", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-07-04", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-202607040710-wind-41.51--93.51", "lat": 41.51, "lon": -93.51, "zip": "", "city": "1 WNW Carlisle", "date": "2026-07-04", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 1 WNW Carlisle, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202607040713-wind-41.54--93.66", "lat": 41.54, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2026-07-04", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "spc-2026-07-03-99-0710", "lat": 41.51, "lon": -93.51, "zip": "", "city": "Carlisle", "date": "2026-07-03", "county": "Warren", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "PWS gust. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 58, "evidenceLevel": "reported" }, { "id": "spc-2026-07-03-100-0713", "lat": 41.54, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2026-07-03", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "(DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 58, "evidenceLevel": "reported" }, { "id": "iem-202607022126-hail-41.61--93.69", "lat": 41.61, "lon": -93.69, "zip": "", "city": "1 NE Windsor Heights", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 NE Windsor Heights, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202607022127-hail-41.60--93.70", "lat": 41.6, "lon": -93.7, "zip": "", "city": "1 SE Windsor Heights", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 SE Windsor Heights, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — CO-OP Observer via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202607022135-hail-41.63--93.70", "lat": 41.63, "lon": -93.7, "zip": "", "city": "2 NNE Windsor Heights", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 NNE Windsor Heights, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202607022137-hail-41.64--93.70", "lat": 41.64, "lon": -93.7, "zip": "", "city": "2 E Urbandale", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 E Urbandale, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202607022140-hail-41.64--93.66", "lat": 41.64, "lon": -93.66, "zip": "", "city": "3 NE Windsor Heights", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 NE Windsor Heights, IA. Hail size: 1.5\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-202607022225-hail-41.82--93.78", "lat": 41.82, "lon": -93.78, "zip": "", "city": "4 NW Polk City", "date": "2026-07-02", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 4 NW Polk City, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-07-02-125-2126", "lat": 41.61, "lon": -93.69, "zip": "", "city": "Windsor Heights", "date": "2026-07-02", "county": "Polk", "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.). (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-07-02-126-2127", "lat": 41.6, "lon": -93.7, "zip": "", "city": "Windsor Heights", "date": "2026-07-02", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Delayed report. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "spc-2026-07-02-128-2137", "lat": 41.64, "lon": -93.7, "zip": "", "city": "Urbandale", "date": "2026-07-02", "county": "Polk", "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.). (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-07-02-129-2140", "lat": 41.64, "lon": -93.66, "zip": "", "city": "Windsor Heights", "date": "2026-07-02", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "(DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "spc-2026-07-02-131-2225", "lat": 41.82, "lon": -93.78, "zip": "", "city": "Polk City", "date": "2026-07-02", "county": "Polk", "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.). (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "asos-bf-DSM-2026-06-11", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-06-11", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 50 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 50, "evidenceLevel": "observed" }, { "id": "iem-202606060302-hail-41.39--93.27", "lat": 41.39, "lon": -93.27, "zip": "", "city": "Pleasantville", "date": "2026-06-05", "county": "Marion", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Pleasantville, IA. Hail size: 1.75\".", "sourceDetail": "NWS DMX — Broadcast Media via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.75 }, { "id": "iem-202606060356-hail-41.39--93.28", "lat": 41.39, "lon": -93.28, "zip": "", "city": "1 WSW Pleasantville", "date": "2026-06-05", "county": "Marion", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 WSW Pleasantville, IA. Hail size: 1.5\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-lsr-2026-06-05-wind-41.37--93.36", "lat": 41.37, "lon": -93.36, "zip": "", "city": "2 E Sandyville", "date": "2026-06-05", "county": "Warren", "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": "Received text message from trained spotter of 63mph gust on PWS.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "windSpeedMph": 63, "evidenceLevel": "reported" }, { "id": "iem-202606060255-hail-41.39--93.27", "lat": 41.39, "lon": -93.27, "zip": "", "city": "Pleasantville", "date": "2026-06-05", "county": "Marion", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Pleasantville, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202606060300-hail-41.39--93.27", "lat": 41.39, "lon": -93.27, "zip": "", "city": "Pleasantville", "date": "2026-06-05", "county": "Marion", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Pleasantville, IA. Hail size: 2\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 2 }, { "id": "iem-202606060311-wind-41.37--93.36", "lat": 41.37, "lon": -93.36, "zip": "", "city": "2 E Sandyville", "date": "2026-06-05", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near 2 E Sandyville, IA. Peak gust: 72 mph.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "windSpeedMph": 72, "evidenceLevel": "reported" }, { "id": "spc-2026-06-05-397-0311", "lat": 41.37, "lon": -93.36, "zip": "", "city": "Sandyville", "date": "2026-06-05", "county": "Warren", "source": "SPC Storm Reports", "severity": "high", "eventType": "wind", "confidence": 90, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Received text message from trained spotter of 63mph gust on PWS. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "windSpeedMph": 63, "evidenceLevel": "reported" }, { "id": "spc-2026-06-05-424-0356", "lat": 41.39, "lon": -93.28, "zip": "", "city": "Pleasantville", "date": "2026-06-05", "county": "Marion", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Delayed report - received hail photo from social media. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "asos-bf-DSM-2026-05-18", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-05-18", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 57 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 57, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2026-05-16", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-05-16", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 53 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 53, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2026-05-15", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-05-15", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-202604240108-hail-41.69--93.61", "lat": 41.69, "lon": -93.61, "zip": "", "city": "1 NE Saylorville", "date": "2026-04-23", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 NE Saylorville, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-lsr-2026-04-23-wind-41.54--93.66", "lat": 41.54, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2026-04-23", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near Des Moines Int Airport", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "iem-geo-2026-04-24T00:33:00Z-tornado-41.89--93.66", "lat": 41.89, "lon": -93.66, "zip": "", "city": "2 ENE Slater", "date": "2026-04-23", "county": "Story", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "tornado", "confidence": 92, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TORNADO reported near 2 ENE Slater, IA. Several reports from local fire department and spotters of tornado on the ground.", "sourceDetail": "NWS DMX — Fire Dept/Rescue via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "iem-geo-2026-04-24T01:25:00Z-tornado-41.60--93.36", "lat": 41.6, "lon": -93.36, "zip": "", "city": "4 S Mitchellville", "date": "2026-04-23", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "tornado", "confidence": 92, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "TORNADO reported near 4 S Mitchellville, IA. Trained spotter reports tornado on the ground.", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet (GeoJSON)", "evidenceLevel": "reported" }, { "id": "asos-bf-DSM-2026-04-23", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-04-23", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 59 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 59, "evidenceLevel": "observed" }, { "id": "iem-202604240100-wind-41.54--93.66", "lat": 41.54, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2026-04-23", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 68 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 68, "evidenceLevel": "observed" }, { "id": "spc-2026-04-23-659-0108", "lat": 41.69, "lon": -93.61, "zip": "", "city": "Saylorville", "date": "2026-04-23", "county": "Polk", "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.). (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-04-23-667-0033", "lat": 41.89, "lon": -93.66, "zip": "", "city": "Slater", "date": "2026-04-23", "county": "Story", "source": "SPC Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 90, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Several reports from local fire department and spotters of tornado on the ground. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported" }, { "id": "spc-2026-04-23-668-0125", "lat": 41.6, "lon": -93.36, "zip": "", "city": "Mitchellville", "date": "2026-04-23", "county": "Polk", "source": "SPC Storm Reports", "severity": "moderate", "eventType": "tornado", "confidence": 90, "damageTypes": [ "Structural roof failure", "Debris penetration", "Complete shingle removal" ], "description": "Trained spotter reports tornado on the ground. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported" }, { "id": "iem-202604171858-hail-41.73--93.60", "lat": 41.73, "lon": -93.6, "zip": "", "city": "Ankeny", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Ankeny, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604171901-hail-41.48--93.76", "lat": 41.48, "lon": -93.76, "zip": "", "city": "Cumming", "date": "2026-04-17", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Cumming, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202604171904-hail-41.65--93.60", "lat": 41.65, "lon": -93.6, "zip": "", "city": "3 SE Saylorville", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 SE Saylorville, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604171905-hail-41.68--93.57", "lat": 41.68, "lon": -93.57, "zip": "", "city": "3 E Saylorville", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 E Saylorville, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202604171911-hail-41.58--93.62", "lat": 41.58, "lon": -93.62, "zip": "", "city": "Des Moines", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Des Moines, IA. Hail size: 1.5\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-202604171926-hail-41.62--93.39", "lat": 41.62, "lon": -93.39, "zip": "", "city": "3 SSW Mitchellville", "date": "2026-04-17", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 SSW Mitchellville, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604171940-hail-41.71--93.24", "lat": 41.71, "lon": -93.24, "zip": "", "city": "2 N Colfax", "date": "2026-04-17", "county": "Jasper", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 N Colfax, IA. Hail size: 1.5\".", "sourceDetail": "NWS DMX — Emergency Mngr via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-202604171940-hail-41.68--93.24", "lat": 41.68, "lon": -93.24, "zip": "", "city": "Colfax", "date": "2026-04-17", "county": "Jasper", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Colfax, IA. Hail size: 1.5\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.5 }, { "id": "iem-202604171941-hail-41.72--93.25", "lat": 41.72, "lon": -93.25, "zip": "", "city": "3 N Colfax", "date": "2026-04-17", "county": "Jasper", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 N Colfax, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202604172325-hail-41.63--93.89", "lat": 41.63, "lon": -93.89, "zip": "", "city": "2 NW Waukee", "date": "2026-04-17", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 NW Waukee, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604172326-hail-41.61--93.88", "lat": 41.61, "lon": -93.88, "zip": "", "city": "1 W Waukee", "date": "2026-04-17", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 W Waukee, IA. Hail size: 0.88\".", "sourceDetail": "NWS DMX — Emergency Mngr via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "iem-202604172326-hail-41.62--93.85", "lat": 41.62, "lon": -93.85, "zip": "", "city": "1 NE Waukee", "date": "2026-04-17", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 NE Waukee, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-04-17-705-1904", "lat": 41.65, "lon": -93.6, "zip": "", "city": "Saylorville", "date": "2026-04-17", "county": "Polk", "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.). (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-04-17-706-1905", "lat": 41.68, "lon": -93.57, "zip": "", "city": "Saylorville", "date": "2026-04-17", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Reported by Trained Spotter. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "spc-2026-04-17-710-1926", "lat": 41.62, "lon": -93.39, "zip": "", "city": "Mitchellville", "date": "2026-04-17", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "(DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "spc-2026-04-17-714-1941", "lat": 41.72, "lon": -93.25, "zip": "", "city": "Colfax", "date": "2026-04-17", "county": "Jasper", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Report from mPING: Half Dollar (1.25 in.). (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "spc-2026-04-17-751-2325", "lat": 41.63, "lon": -93.89, "zip": "", "city": "Waukee", "date": "2026-04-17", "county": "Dallas", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Delayed report. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604152115-hail-41.66--93.76", "lat": 41.66, "lon": -93.76, "zip": "", "city": "2 WSW Johnston", "date": "2026-04-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 WSW Johnston, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604152139-hail-41.40--94.02", "lat": 41.4, "lon": -94.02, "zip": "", "city": "4 N Winterset", "date": "2026-04-15", "county": "Madison", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 4 N Winterset, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604152205-hail-41.53--93.60", "lat": 41.53, "lon": -93.6, "zip": "", "city": "3 E Des Moines Int Airp", "date": "2026-04-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 E Des Moines Int Airp, IA. Hail size: 0.88\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "iem-202604160129-hail-41.88--93.82", "lat": 41.88, "lon": -93.82, "zip": "", "city": "Madrid", "date": "2026-04-15", "county": "Boone", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Madrid, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Emergency Mngr via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202604160152-hail-41.52--94.07", "lat": 41.52, "lon": -94.07, "zip": "", "city": "3 NE Earlham", "date": "2026-04-15", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 NE Earlham, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "spc-2026-04-15-782-2115", "lat": 41.66, "lon": -93.76, "zip": "", "city": "Johnston", "date": "2026-04-15", "county": "Polk", "source": "SPC Storm Reports", "severity": "high", "eventType": "hail", "confidence": 90, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "Trained spotter sent a picture of a hail stone 1 inch in diameter. (DMX)", "sourceDetail": "Storm Prediction Center verified report", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "asos-bf-DSM-2026-04-08", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-04-08", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-202603310249-hail-41.73--94.03", "lat": 41.73, "lon": -94.03, "zip": "", "city": "2 S Minburn", "date": "2026-03-30", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 S Minburn, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Emergency Mngr via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310312-hail-41.68--93.75", "lat": 41.68, "lon": -93.75, "zip": "", "city": "1 WNW Johnston", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 WNW Johnston, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-202603310316-hail-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 W Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 W Ankeny, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310317-hail-41.73--93.60", "lat": 41.73, "lon": -93.6, "zip": "", "city": "Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Ankeny, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Amateur Radio via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310320-hail-41.77--93.58", "lat": 41.77, "lon": -93.58, "zip": "", "city": "3 NNE Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 NNE Ankeny, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-202603310334-hail-41.61--93.86", "lat": 41.61, "lon": -93.86, "zip": "", "city": "Waukee", "date": "2026-03-30", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near Waukee, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310334-hail-41.61--93.88", "lat": 41.61, "lon": -93.88, "zip": "", "city": "1 W Waukee", "date": "2026-03-30", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 W Waukee, IA. Hail size: 1.25\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1.25 }, { "id": "iem-202603310335-hail-41.59--93.85", "lat": 41.59, "lon": -93.85, "zip": "", "city": "1 SSE Waukee", "date": "2026-03-30", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 1 SSE Waukee, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310345-hail-41.63--93.70", "lat": 41.63, "lon": -93.7, "zip": "", "city": "2 NNE Windsor Heights", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 NNE Windsor Heights, IA. Hail size: 1\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 1 }, { "id": "iem-202603310315-hail-41.74--93.64", "lat": 41.74, "lon": -93.64, "zip": "", "city": "2 WNW Ankeny", "date": "2026-03-30", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 WNW Ankeny, IA. Hail size: 0.88\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.88 }, { "id": "asos-bf-DSM-2026-03-16", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-03-16", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 56 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-03-15-wind-41.68--93.57", "lat": 41.68, "lon": -93.57, "zip": "", "city": "3 E Saylorville", "date": "2026-03-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Peak wind at AWOS station KIKV Ankeny Airport.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-03-15-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2026-03-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Peak wind gust at ASOS station KDSM Des Moines International Airport.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 60, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2026-03-15", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2026-03-15", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-202603160235-wind-41.68--93.57", "lat": 41.68, "lon": -93.57, "zip": "", "city": "3 E Saylorville", "date": "2026-03-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 3 E Saylorville, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — AWOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202603160456-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2026-03-15", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 69 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2026-03-13", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-03-13", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 58 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2026-03-13", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2026-03-13", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "iem-202603070136-hail-41.69--93.99", "lat": 41.69, "lon": -93.99, "zip": "", "city": "2 W Dallas Center", "date": "2026-03-06", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 2 W Dallas Center, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Trained Spotter via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 }, { "id": "iem-lsr-2026-01-21-wind-41.86--93.90", "lat": 41.86, "lon": -93.9, "zip": "", "city": "1 ENE Woodward", "date": "2026-01-21", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 64, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.79--93.53", "lat": 41.79, "lon": -93.53, "zip": "", "city": "1 W Elkhart", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Mesonet station UP752 0.6 W Elkhart (UPR).", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ASOS station KDSM Des Moines International Airport.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 64, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.82--93.80", "lat": 41.82, "lon": -93.8, "zip": "", "city": "4 SSE Madrid", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Measured from personal weather station.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 65, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2026-01-21", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2026-01-21", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 65 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 65, "evidenceLevel": "observed" }, { "id": "iem-202601212107-wind-41.86--93.90", "lat": 41.86, "lon": -93.9, "zip": "", "city": "1 ENE Woodward", "date": "2026-01-21", "county": "Dallas", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 1 ENE Woodward, IA. Peak gust: 74 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 74, "evidenceLevel": "observed" }, { "id": "iem-202601212121-wind-41.79--93.53", "lat": 41.79, "lon": -93.53, "zip": "", "city": "1 W Elkhart", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 1 W Elkhart, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202601212128-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202601212128-wind-41.82--93.80", "lat": 41.82, "lon": -93.8, "zip": "", "city": "4 SSE Madrid", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 4 SSE Madrid, IA. Peak gust: 75 mph.", "sourceDetail": "NWS DMX — Mesonet via Iowa Mesonet", "windSpeedMph": 75, "evidenceLevel": "observed" }, { "id": "iem-202601212159-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 74 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 74, "evidenceLevel": "observed" }, { "id": "iem-lsr-2026-01-21-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2026-01-21", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ASOS station KDSM Des Moines International Airport.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2025-12-28", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2025-12-28", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 56 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 56, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2025-12-18", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2025-12-18", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 54 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 54, "evidenceLevel": "observed" }, { "id": "iem-lsr-2025-12-10-wind-41.53--93.66", "lat": 41.53, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2025-12-10", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "KDSM 45 gust 66 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 66, "evidenceLevel": "observed" }, { "id": "iem-lsr-2025-12-10-wind-41.38--93.40", "lat": 41.38, "lon": -93.4, "zip": "", "city": "1 NW Sandyville", "date": "2025-12-10", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "measured on home weather station.", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "windSpeedMph": 66, "evidenceLevel": "reported" }, { "id": "iem-lsr-2025-12-10-wind-41.57--93.26", "lat": 41.57, "lon": -93.26, "zip": "", "city": "3 SSW Prairie City", "date": "2025-12-10", "county": "Jasper", "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": "Neal Smith RAWS.", "sourceDetail": "NWS DMX — Park/Forest Srvc via Iowa Mesonet", "windSpeedMph": 60, "evidenceLevel": "reported" }, { "id": "asos-bf-DSM-2025-12-10", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2025-12-10", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 65 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 65, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2025-12-10", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2025-12-10", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 51 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 51, "evidenceLevel": "observed" }, { "id": "iem-202512101011-wind-41.53--93.66", "lat": 41.53, "lon": -93.66, "zip": "", "city": "Des Moines Int Airport", "date": "2025-12-10", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 76 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 76, "evidenceLevel": "observed" }, { "id": "iem-202512101030-wind-41.38--93.40", "lat": 41.38, "lon": -93.4, "zip": "", "city": "1 NW Sandyville", "date": "2025-12-10", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "severe", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 1 NW Sandyville, IA. Peak gust: 76 mph.", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "windSpeedMph": 76, "evidenceLevel": "reported" }, { "id": "iem-202512101031-wind-41.57--93.26", "lat": 41.57, "lon": -93.26, "zip": "", "city": "3 SSW Prairie City", "date": "2025-12-10", "county": "Jasper", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near 3 SSW Prairie City, IA. Peak gust: 69 mph.", "sourceDetail": "NWS DMX — Park/Forest Srvc via Iowa Mesonet", "windSpeedMph": 69, "evidenceLevel": "reported" }, { "id": "asos-bf-DSM-2025-12-09", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2025-12-09", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 57 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 57, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2025-11-26", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2025-11-26", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 57 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 57, "evidenceLevel": "observed" }, { "id": "iem-lsr-2025-11-25-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2025-11-25", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ASOS station KDSM Des Moines International Airport.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 61, "evidenceLevel": "observed" }, { "id": "asos-bf-IKV-2025-11-25", "lat": 41.6878, "lon": -93.5695, "zip": "", "city": "ANKENY", "date": "2025-11-25", "county": "Polk", "source": "IEM ASOS Station", "severity": "moderate", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ANKENY (IKV) recorded a 52 mph gust.", "sourceDetail": "IA_ASOS automated observation — ANKENY (IKV) [365d backfill 2026-08]", "windSpeedMph": 52, "evidenceLevel": "observed" }, { "id": "asos-bf-DSM-2025-11-25", "lat": 41.534, "lon": -93.6531, "zip": "", "city": "Des Moines", "date": "2025-11-25", "county": "Polk", "source": "IEM ASOS Station", "severity": "high", "eventType": "wind", "confidence": 0.95, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "Des Moines (DSM) recorded a 60 mph gust.", "sourceDetail": "IA_ASOS automated observation — Des Moines (DSM) [365d backfill 2026-08]", "windSpeedMph": 60, "evidenceLevel": "observed" }, { "id": "iem-202511260231-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2025-11-25", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 67 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 67, "evidenceLevel": "observed" }, { "id": "iem-202511260448-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2025-11-25", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "NON-TSTM WND GST reported near Des Moines Int Airport, IA. Peak gust: 70 mph.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 70, "evidenceLevel": "observed" }, { "id": "iem-lsr-2025-11-25-wind-41.53--93.67", "lat": 41.53, "lon": -93.67, "zip": "", "city": "Des Moines Int Airport", "date": "2025-11-25", "county": "Polk", "source": "IEM Local Storm Reports", "severity": "high", "eventType": "wind", "confidence": 0.92, "damageTypes": [ "Roof shingle lift", "Soffit/fascia damage", "Tree strike risk", "Fence/screen damage" ], "description": "ASOS station KDSM Des Moines International Airport.", "sourceDetail": "NWS DMX — ASOS via Iowa Mesonet", "windSpeedMph": 58, "evidenceLevel": "observed" }, { "id": "iem-202509162038-hail-41.26--93.72", "lat": 41.26, "lon": -93.72, "zip": "", "city": "3 S Saint Marys", "date": "2025-09-16", "county": "Warren", "source": "IEM Local Storm Reports", "severity": "moderate", "eventType": "hail", "confidence": 92, "damageTypes": [ "Shingle bruising", "Granule displacement", "Metal denting", "Vehicle damage" ], "description": "HAIL reported near 3 S Saint Marys, IA. Hail size: 0.75\".", "sourceDetail": "NWS DMX — Public via Iowa Mesonet", "evidenceLevel": "reported", "hailSizeInches": 0.75 } ] }