How big was the hail on May 3, 2026?

The maximum estimated stone size anywhere in the country that day was 1.00 inches, over Grants Pass, OR. Sizes vary street to street inside a single swath, so a city's figure is the largest radar estimated anywhere within about 5 miles of it.

Where does this hail data come from?

NOAA radar, ingested directly from the public NOAA archive. The estimated stone size runs about a quarter of an inch against ground truth, which makes it good for deciding where to look and not a substitute for an inspection.

Does this mean roofs were damaged?

Radar measures stone size, not damage. Whether a particular roof was damaged depends on stone size, wind direction, roof age and material — only an inspection settles it. These figures tell you where it is worth looking.

How do I see the actual swath on a map?

A HailMate plan puts a whole state on a real interactive map, with this swath and three years of others already on it. From $79/mo, and the canvassing tools come with it.

United States · May 3, 2026

Hail map — May 3, 2026

Name: US hail map — May 3, 2026
Creator: HailMate

NOAA radar detected hail of an inch or more over 2 cities across 2 states on May 3, 2026. The largest stones — 1.00″, quarter size — fell over Grants Pass, OR.

Hail swath map for Grants Pass, OR on May 3, 2026 showing 1.00 inch hail. — Largest rendered swath of the day: Grants Pass, OR — 1.00″ hail. Each city below has its own map for this storm.

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The May 3, 2026 swath — and every other storm since 2023 across your state
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States hit: 2
Cities hit: 2
Largest stone: 1.00″; quarter size
Impact rating: 3/10; from stone size

Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

Homeowners

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This page covers your area as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.

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States hit on May 3, 2026

Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.

Oregon1 city · 1.00″Illinois1 city · 1.00″

Hardest hit on May 3, 2026

Grants Pass, OR1.00″ · quarter Alton, IL1.00″ · quarter

What people on the ground measured in the US on May 3, 2026

15 reports filed with the National Weather Service — 3 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

2.00″ hen egg size Public
3 W Alton, IL11:00 PM CDTMadison County
Email report showing 2 inch stone next to tape measure. time estimated from radar.
1.75″ golf ball size Public
Hawk Point, MO9:58 PM CDTLincoln County
1.75″ golf ball size Emergency Mngr
Troy, MO10:08 PM CDTLincoln County
1.75″ golf ball size Public
1 NE Alton, IL10:58 PM CDTMadison County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Trained Spotter
1 S Godfrey, IL10:59 PM CDTMadison County
1.50″ half dollar size Public
2 S Truxton, MO9:55 PM CDTWarren County
Report from mPING: Ping Pong Ball (1.50 in.).
1.50″ half dollar size Public
2 NW Alton, IL10:55 PM CDTMadison County
Report from mPING: Ping Pong Ball (1.50 in.).
1.50″ half dollar size Amateur Radio
1 NNE Bethalto, IL11:05 PM CDTMadison County
1.00″ quarter size Public
2 SW Cave, MO10:02 PM CDTLincoln County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Broadcast Media
Assumption, IL10:53 PM CDTChristian County
Time estimated from radar.
1.00″ quarter size Public
3 SW Godfrey, IL10:55 PM CDTMadison County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Amateur Radio
Alton, IL10:58 PM CDTMadison County
1.00″ quarter size Amateur Radio
Bethalto, IL11:06 PM CDTMadison County
1.00″ quarter size Public
5 NNE Plainview, IL11:42 PM CDTMacoupin County
Via email, no photo. time estimated via radar.
0.75″ penny size Emergency Mngr
Shelbyville, IL11:17 PM CDTShelby County

Showing the 15 largest of 21 hail reports filed that day.

Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.

Other hail days

September 30, 20261 city · 2.00″September 28, 20261 city · 1.00″September 27, 20264 cities · 1.00″September 26, 20261 city · 1.00″September 25, 20263 cities · 1.00″September 23, 20262 cities · 1.00″September 22, 202617 cities · 1.00″September 21, 202665 cities · 2.00″September 20, 20268 cities · 1.50″September 19, 202637 cities · 1.50″September 18, 202623 cities · 2.00″September 17, 202619 cities · 1.50″

Every state with hail on record →

FAQ

US hail on May 3, 2026

NOAA radar put hail of an inch or more over 2 cities across 2 states on May 3, 2026. The largest stones — 1.00 inches, quarter size — were over Grants Pass, OR. Every state hit is listed on this page, and every city under it.

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