data api · United States

Storm Events Database

The Storm Events Database documents storms and other weather phenomena having sufficient intensity to cause loss of life, injuries, property damage, and/or disruption to commerce across the United States. Records date from 1950 up to the current year. Created by the National Weather Service and the National Centers for Environmental Information, the dataset is presented here by The Internet of Water Coalition, The Commons, and Earth Genome.

Visit source ↗

Claim this listing

Represent Storm Events Database? Send a claim for review so we can discuss listing updates. Claims do not automatically grant ownership or verification.

Explore paid sponsorship →

What's in it

Data offered docs-verified: storm and weather-phenomenon event records (55 official NWS event types) · event_type_family grouping (7 unofficial high-level categories) · injuries, deaths and property/crop damage per event · episode_id and episode narrative grouping related events · event and episode narratives · per-row bounding box columns for spatial filtering
Coverage docs-verified: United States · 1950 to approximately 3-4 months before the current date
Resolution docs-verified: Event-level records; one Point geometry per event (county/forecast-zone centroid where no point exists); begin_ts and end_ts timestamps
Update frequency docs-verified: Monthly target, pending availability of new NOAA/NCEI data
Formats docs-verified: CSV · GeoParquet
Access docs-verified: Public, no login required; licence not stated in the docs (see product README)

Useful for

Use cases llm-inferred: Historical flash-flood and heavy-rain event review by county for US project screening · Damage and casualty loss context by event type and year for US risk narratives · Storm-event frequency benchmarking for US climate-risk or due-diligence reports
Audience llm-inferred: flood consultants · hydrologists · climate-risk analysts · GIS analysts · planners (US projects)

Limitations

Constraints docs-verified: Historical coverage varies by event type: 1950-1954 tornadoes only; 1955-1995 tornado, thunderstorm wind and hail only · Data lags NOAA/NCEI by about 3-4 months · US only; not applicable to UK projects · Around 1% of events have null geometry · Some records may have FIPS codes inconsistent with coordinates, inherited from NOAA source data · Downstream project, not affiliated with NWS, NOAA or NCEI; NCEI is the authoritative source · Licence not stated in the entry; check the product README

Licence: see product README
Authentication: Public; anonymous HTTPS/S3 access via data.source.coop
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 14/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Verified via Source Cooperative API /api/v1/products/earthgenome (public product, updated 2025-09-17).

Metadata observed 14/10/2026 · research sweep: manual-2026-10-15 (source.coop)