{
 "dataset": "San Francisco, CA storm events — 12-month window, 25-mile radius plus San Francisco 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": "2026-09-20T10:35:16.938+00:00",
 "window_days": 365,
 "schema_version": "2.0.0",
 "event_count": 14,
 "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": "iem-lsr-2026-02-15-wind-38.00--123.01",
   "lat": 38,
   "lon": -123.01,
   "zip": "",
   "city": "11 WSW Inverness",
   "date": "2026-02-15",
   "county": "Marin",
   "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 538PG Point Reyes.",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 61,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-ww-MTR-SV-W-23-San Francisco-wind-2025-12-25",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-12-25",
   "county": "San Francisco",
   "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 MTR for San Francisco on 2025-12-25. Storm tag wind: 60 mph. This is a warning — not a confirmed event.",
   "sourceDetail": "NWS MTR — Severe Thunderstorm Warning",
   "windSpeedMph": 60,
   "evidenceLevel": "warning",
   "warningProductKey": "MTR-SV-W-23"
  },
  {
   "id": "iem-ww-MTR-SV-W-23-San Francisco-hail-2025-12-25",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-12-25",
   "county": "San Francisco",
   "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 MTR for San Francisco on 2025-12-25. Storm tag hail: 1\". This is a warning — not a confirmed event.",
   "sourceDetail": "NWS MTR — Severe Thunderstorm Warning",
   "evidenceLevel": "warning",
   "hailSizeInches": 1,
   "warningProductKey": "MTR-SV-W-23"
  },
  {
   "id": "iem-ww-MTR-SV-W-20-San Francisco-wind-2025-12-25",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-12-25",
   "county": "San Francisco",
   "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 MTR for San Francisco on 2025-12-25. Storm tag wind: 70 mph. This is a warning — not a confirmed event.",
   "sourceDetail": "NWS MTR — Severe Thunderstorm Warning",
   "windSpeedMph": 70,
   "evidenceLevel": "warning",
   "warningProductKey": "MTR-SV-W-20"
  },
  {
   "id": "iem-ww-MTR-SV-W-20-San Francisco-hail-2025-12-25",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-12-25",
   "county": "San Francisco",
   "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 MTR for San Francisco on 2025-12-25. Storm tag hail: 1\". This is a warning — not a confirmed event.",
   "sourceDetail": "NWS MTR — Severe Thunderstorm Warning",
   "evidenceLevel": "warning",
   "hailSizeInches": 1,
   "warningProductKey": "MTR-SV-W-20"
  },
  {
   "id": "iem-ww-MTR-HW-W-5-San Francisco-wind-2025-12-25",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-12-25",
   "county": "San Francisco",
   "source": "IEM High Wind Archive",
   "severity": "high",
   "eventType": "wind",
   "confidence": 0.72,
   "damageTypes": [
    "Roof shingle lift",
    "Soffit/fascia damage",
    "Tree strike risk",
    "Fence/screen damage"
   ],
   "description": "HW W for San Francisco.",
   "sourceDetail": "NWS MTR — HW/W",
   "evidenceLevel": "warning",
   "warningProductKey": "MTR-HW-W-5"
  },
  {
   "id": "iem-lsr-2025-12-24-wind-38.00--123.01",
   "lat": 38,
   "lon": -123.01,
   "zip": "",
   "city": "11 WSW Inverness",
   "date": "2025-12-24",
   "county": "Marin",
   "source": "IEM Local Storm Reports",
   "severity": "severe",
   "eventType": "wind",
   "confidence": 0.92,
   "damageTypes": [
    "Roof shingle lift",
    "Soffit/fascia damage",
    "Tree strike risk",
    "Fence/screen damage"
   ],
   "description": "Mesonet station 538PG Point Reyes.",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 81,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-lsr-2025-12-24-wind-38.00--122.75",
   "lat": 38,
   "lon": -122.75,
   "zip": "",
   "city": "3 WSW Lagunitas-Forest",
   "date": "2025-12-24",
   "county": "Marin",
   "source": "IEM Local Storm Reports",
   "severity": "moderate",
   "eventType": "wind",
   "confidence": 0.92,
   "damageTypes": [
    "Roof shingle lift",
    "Soffit/fascia damage",
    "Tree strike risk",
    "Fence/screen damage"
   ],
   "description": "Mesonet station PG419 3.4 W Lagunitas-Forest Knolls (PGE).",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 54,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-lsr-2025-12-24-wind-37.95--122.68",
   "lat": 37.95,
   "lon": -122.68,
   "zip": "",
   "city": "3 NNE Bolinas",
   "date": "2025-12-24",
   "county": "Marin",
   "source": "IEM Local Storm Reports",
   "severity": "moderate",
   "eventType": "wind",
   "confidence": 0.92,
   "damageTypes": [
    "Roof shingle lift",
    "Soffit/fascia damage",
    "Tree strike risk",
    "Fence/screen damage"
   ],
   "description": "Mesonet station PG489 3.4 NE Bolinas (PGE).",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 50,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-ww-MTR-HW-W-4-San Francisco-wind-2025-12-24",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-12-24",
   "county": "San Francisco",
   "source": "IEM High Wind Archive",
   "severity": "high",
   "eventType": "wind",
   "confidence": 0.72,
   "damageTypes": [
    "Roof shingle lift",
    "Soffit/fascia damage",
    "Tree strike risk",
    "Fence/screen damage"
   ],
   "description": "HW W for San Francisco.",
   "sourceDetail": "NWS MTR — HW/W",
   "evidenceLevel": "warning",
   "warningProductKey": "MTR-HW-W-4"
  },
  {
   "id": "iem-lsr-2025-12-23-wind-38.00--123.01",
   "lat": 38,
   "lon": -123.01,
   "zip": "",
   "city": "11 WSW Inverness",
   "date": "2025-12-23",
   "county": "Marin",
   "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 538PG Point Reyes.",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 60,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-lsr-2025-12-23-wind-38.00--123.01",
   "lat": 38,
   "lon": -123.01,
   "zip": "",
   "city": "11 WSW Inverness",
   "date": "2025-12-23",
   "county": "Marin",
   "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 538PG Point Reyes.",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 68,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-lsr-2025-11-13-wind-38.00--123.01",
   "lat": 38,
   "lon": -123.01,
   "zip": "",
   "city": "11 WSW Inverness",
   "date": "2025-11-13",
   "county": "Marin",
   "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 538PG Point Reyes.",
   "sourceDetail": "NWS MTR — Mesonet via Iowa Mesonet",
   "windSpeedMph": 67,
   "evidenceLevel": "observed"
  },
  {
   "id": "iem-ww-MTR-HW-W-3-San Francisco-wind-2025-11-13",
   "zip": "",
   "city": "San Francisco",
   "date": "2025-11-13",
   "county": "San Francisco",
   "source": "IEM High Wind Archive",
   "severity": "high",
   "eventType": "wind",
   "confidence": 0.72,
   "damageTypes": [
    "Roof shingle lift",
    "Soffit/fascia damage",
    "Tree strike risk",
    "Fence/screen damage"
   ],
   "description": "HW W for San Francisco.",
   "sourceDetail": "NWS MTR — HW/W",
   "evidenceLevel": "warning",
   "warningProductKey": "MTR-HW-W-3"
  }
 ]
}