US Hail Map
Where it hailed in the last 12 months, county by county, from official NOAA Storm Prediction Center reports. Click a county for its storm log.
0 verified hail reports across 0 counties. Shading counts SPC reports, not hail size: a county with many quarter-size reports shades hotter than one softball report. Size is a separate board — Top 20 highest hail this week. Wind is too — Top 20 highest winds this week. The hail size chart explains the sizes.
Did it hail at a specific address?
IDOLCheck does not verify storm evidence at a property. We combine official reports and warning records to show the relevant storm activity associated with a specific address or location, including the most recent 30 days.
Check an address free →Top 25 hail counties
| # | County | State | Hail reports | Largest |
|---|
Hail map by state
Ordered by verified hail reports over the last 12 months. Each state page has its own county map, Top 5 hail leaderboard, and live radar.
How to read a hail map
Reports, not radar. This map counts ground-truth observations: someone saw hail and reported its size. Radar-estimated hail maps (which many services sell) infer hail from reflectivity and can show hail where none fell, or miss hail under a weak return. The two are complementary; IDOLCheck pages show both — verified reports here and radar snapshots on each county's storm log.
Population bias is real. Dense counties have more spotters, so they report more. A quiet rural county next to a hot suburban one often saw the same storm. That is why the address-level check matters more than the county shade.
Season, month by month. The slider is not cumulative. Each month shows that month’s reports at full color; hail from other months stays on the map, muted. The page opens on the last 12 months, rewinds to the first month, then speeds back to the full year.
Size vs. frequency. One 3" stone is a bigger event than ten 1" reports, but the ten reports shade hotter here. Use the Largest column above and the size leaderboards on state pages for severity.
Where the boundaries come from. County shapes are US Census Bureau cartographic boundaries (1:20,000,000). Alaska and Hawaii are inset at the standard Albers-USA positions.
Hail map questions
What does this hail map show?
Each county is shaded by the number of verified hail reports filed with the NOAA Storm Prediction Center over the last 12 months. Reports come from trained spotters, emergency managers, and National Weather Service offices and record the largest hailstone observed. Click any shaded county for its day-by-day storm log.
Why does my county show no hail when I saw hail?
SPC reports depend on someone observing and reporting the hail. Small or brief hail in rural areas is often never filed. NWS warnings that cited hail also appear on the county pages, and an address-level check in the app tests whether a property was inside a hail-warned polygon.
What do the source filters show?
SPC reports are verified local storm reports. NWS radar / observed is hail or wind pulled from warning parameters and classified as radar-indicated or spotter-observed. Forecast-text is what the warning expected, not what was detected. Combined is SPC plus radar/observed. Hail size on the radar layer rarely reaches 1.00″ in our cache, so the hail gate defaults to any size.
What does the month slider show?
On SPC hail, each tick is one month, not a running total. That month lights up; other months stay muted. The page opens on the last 12 months, then rewinds to the start of the window and speeds back to the full year.
How current is the map?
County data refreshes from HailyAPI every few hours and the window rolls forward daily. Events from the most recent 30 days are counted here but shown at county level only; exact dates and locations unlock after 30 days, or immediately in the IDOLCheck app.
Can I see a hail map for a specific address?
The public map is county-level. IDOLCheck does not verify storm evidence at a property. The app combines official reports and warning records to show the relevant storm activity associated with a specific address or location, including the most recent 30 days. A free account is enough to check.
Map built Oct 30, 2026 from HailyAPI. Source: NOAA Storm Prediction Center storm reports. Informational only — not a substitute for verifying official storm records.
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