How big was the hail on September 3, 2026?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over Hartford, WI. 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 · September 3, 2026

Hail map — September 3, 2026

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

NOAA radar detected hail of an inch or more over 115 cities across 10 states on September 3, 2026. The largest stones — 2.00″, hen egg size — fell over Hartford, WI.

Hail swath map for Hartford, WI on September 3, 2026 showing 2.00 inch hail. — Largest rendered swath of the day: Hartford, WI — 2.00″ hail. Each city below has its own map for this storm.

Roofing contractors

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The September 3, 2026 swath — and every other storm since 2023 across your state
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States hit: 10
Cities hit: 115
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; 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

Did hail hit your address?

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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Free, and no account needed to look it up. If hail did hit, you'll have the date and the stone size in writing — which is the first thing an adjuster asks for.

States hit on September 3, 2026

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

Wisconsin10 cities · 2.00″Pennsylvania21 cities · 1.50″Ohio11 cities · 1.50″West Virginia2 cities · 1.50″Minnesota1 city · 1.50″District of Columbia33 cities · 1.00″Michigan17 cities · 1.00″Virginia6 cities · 1.00″Maryland13 cities · 1.00″Texas1 city · 1.00″

Hardest hit on September 3, 2026

Showing the 24 largest of 115 cities hit. The rest are under their state above.

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

15 reports filed with the National Weather Service — 4 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.

2.30″ hen egg size Broadcast Media
6 S Naytahwaush, MN4:23 PM CDTMahnomen County
Broadcast media shared photo of hail stone estimated to be 2 to 2.5 inches in diameter near Tulaby Lake MN. Time estimated from radar.
2.30″ hen egg size Broadcast Media
3 WNW Elbow Lake, MN4:23 PM CDTGrant County
Broadcast media shared photo of hail stone estimated to be 2 to 2.5 inches in diameter near Tulaby Lake MN. Time estimated from radar.
2.25″ hen egg size Public
4 NW Miltona, MN9:08 PM CDTDouglas County
Report from mPING: Hen Egg+ (2.25 in.).
2.00″ hen egg size Storm Chaser
3 NNE Miltona, MN9:27 PM CDTDouglas County
Multiple images of 2 inch (egg) size hail relayed to us on social media just NE of Miltona, MN.
2.00″ hen egg size Law Enforcement
4 NNW Miltona, MN9:35 PM CDTDouglas County
Douglas County Law Enforcement reported roughly 2 inch size hail north of Miltona, MN.
1.75″ golf ball size Broadcast Media
2 S Broadway, VA2:04 PM EDTRockingham County
Video footage showing golf ball size hail reported near Broadway.
1.75″ golf ball size Public
1 N Lakemore, OH3:37 PM EDTSummit County
1.75″ golf ball size Storm Chaser
4 WSW Fergus Falls, MN7:15 PM CDTOtter Tail County
Hail observed on storm chaser live stream. Comment heard from live stream that hail was no bigger than golf ball sized. Location estimated based on geolocation from Spotter Network.
1.75″ golf ball size Public
3 SW Parkers Prairie, MN9:05 PM CDTOtter Tail County
Social media video and report.
1.75″ golf ball size Public
5 WNW Laporte, MN10:30 PM CDTHubbard County
1.75″ golf ball size Emergency Mngr
Mayville, WI11:32 PM CDTDodge County
Relay report from NWSChat.
1.50″ half dollar size Public
3 NNE Simcoe, ND7:00 AM CDTMcHenry County
Largest hail size reported.
1.50″ half dollar size Emergency Mngr
Finley, ND12:56 PM CDTSteele County
1.50″ half dollar size Emergency Mngr
1 ESE Bethany, WV5:41 PM EDTBrooke County
1.50″ half dollar size Trained Spotter
1 SW Braddock, PA6:30 PM EDTAllegheny County

Showing the 15 largest of 38 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

October 14, 202610 cities · 1.00″October 13, 202610 cities · 1.50″October 10, 20261 city · 1.00″October 8, 20263 cities · 1.50″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″

Every state with hail on record →

FAQ

US hail on September 3, 2026

NOAA radar put hail of an inch or more over 115 cities across 10 states on September 3, 2026. The largest stones — 2.00 inches, hen egg size — were over Hartford, WI. Every state hit is listed on this page, and every city under it.

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