Enter any U.S. address to see every NOAA-reported hail day nearby since 2010 -- with hail sizes. Free, no signup.
This free check shows hail near an address. An approved SwathIQ account is free and unlocks the live interactive map, a one-click printable hail report, and a door-knock list of every hailed address in a storm within your markets. Access is hand-reviewed -- you'll get your invite within 24-48h.
Get free accessSwathIQ reads NOAA Storm Prediction Center (SPC) hail reports -- the official record of observed hail across the U.S. -- and finds every report within about 10 miles of your address since 2010. For each storm day it shows the largest reported hail size. On the interactive map you can also see the high-resolution MRMS radar swath (the radar's estimate of hail size in every ~1 km cell), which fills in smaller events that never got a ground report.
| Hail size | Comparison | Typical roof impact |
|---|---|---|
| 0.75″-1″ | Penny / quarter | Granule loss and bruising possible -- worth an inspection. |
| 1″-1.5″ | Quarter / half-dollar | Functional damage likely on most roofs. |
| 1.5″-2″ | Walnut / golf ball | Widespread damage likely -- strong insurance-claim territory. |
| 2″+ | Golf ball and up | Severe -- full roof replacements are common. |
Storm-restoration teams use hail history to time the door knock and to back up an insurance claim with the exact date and size of the event that hit a roof. Look up a homeowner's address before you knock, lead with the storm date, then pull the full door-knock list for the neighborhood from your SwathIQ account.
Data & method: hail reports from the NOAA/NWS Storm Prediction Center storm-report archive (2010-present); radar swaths from NOAA MRMS MESH. Radar-indicated and observation-based -- informational, not a guarantee of damage or a valid insurance claim.