Tornado risk data.
For any US location.
Every score is computed from decades of public records using physics-based probability modeling, scored at neighborhood resolution. Finer than the county-level averages most public data provides, with the same data layer used by insurance and risk management professionals.
No signup required for the basic score. Instant results.
ZIP 74631, Kay County, OK
A live look at the data driving every PerilScore.
Computed from decades of public weather data using physics-based probability modeling.
Browse tornado risk by state, county, city, and ZIP
Start with a local area score, then enter a street address for the free building-specific PerilScore.
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Methodology
Public data. Real science. No black boxes.
Every score is computed from decades of public weather records using physics-based probability modeling. It's the same approach used by insurance and risk management professionals.
- Decades of public weather data
Hurricane tracks, storm intensities, fire perimeters, hail reports, all drawn from public scientific archives. We don't use proprietary data. You can audit every input.
- Physics-based probability modeling
Scores reflect how the actual peril behaves: wind fields, fire spread, ground shaking, and storm tracks. The model keeps the physics visible instead of flattening every place into a broad average.
- Used by professionals
The same PerilScore data layer is used by insurance and risk management professionals. We publish it here so anyone can find authoritative risk numbers for their location.
Real data from the PerilScore model
Representative local scores backed by public data.
Every score published on this site is computed from decades of public weather data using physics-based probability modeling. It’s the same approach used by insurance and risk management professionals.
We publish it here so that anyone searching for risk in a specific ZIP, city, or county can find authoritative, citable numbers.
Frequently asked questions
Where does the tornado risk score come from?
Does this match the SPC tornado climatology?
How is Dixie Alley risk different from Tornado Alley?
Want the full picture for a specific property?
The scores on this site show the representative tornado layer for a local area. Enter a street address to add building age, construction type, roof details, occupancy, surroundings, and property-level context.