About StormWorn
A reference of record for the natural hazards every American place has lived through.
StormWorn exists to answer one question for every county and city in the United States: what has nature actually done here?
What it is
The answer is scattered across federal agencies, each with its own files, maps and conventions. We gather it into one page per place, check it, and present it as a record you can read in a few minutes and cite.
Who it is for
The people who use it are buying a house or moving, trying to understand an insurance letter, reporting on a storm, teaching, or simply curious about the ground under their feet.
The rules behind every number are in the methodology.
What we do and do not do
We do
- Count and measure what the federal record holds for each place
- Publish every rule we apply, in the methodology
- Show the vintage of each dataset where it is used
- Correct errors openly and log every correction
We do not
- Predict, forecast or score risk
- Advise on any property or purchase
- Estimate insurance premiums
- Alter official figures
Every number comes from a public federal dataset, and every rule we apply is published in the methodology.
Independence
StormWorn is independent. It is not affiliated with or endorsed by any government agency. It is supported by advertising, which never influences what the record shows or how places are ranked.
Get in touch
- CorrectionsReport an error. Corrections go to the top of the queue and are logged.
- ContactData questions, press and permissions.
- MethodologyHow each hazard is assigned to a place and counted.
- SourcesThe federal datasets, their spans and their terms.