How big was the hail on July 28, 2023?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over Winona, MN. 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 · July 28, 2023

Hail map — July 28, 2023

Name: US hail map — July 28, 2023
Creator: HailMate

NOAA radar detected hail of an inch or more over 93 cities across 16 states on July 28, 2023. The largest stones — 2.00″, hen egg size — fell over Winona, MN.

Hail swath map for Winona, MN on July 28, 2023 showing 2.00 inch hail. — Largest rendered swath of the day: Winona, MN — 2.00″ hail. Each city below has its own map for this storm.

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The July 28, 2023 swath — and every other storm since 2023 across your state
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States hit: 16
Cities hit: 93
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 July 28, 2023

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

Minnesota16 cities · 2.00″Wisconsin8 cities · 1.50″Arizona5 cities · 1.50″Nebraska2 cities · 1.50″Wyoming1 city · 1.50″Iowa3 cities · 1.50″Georgia7 cities · 1.00″North Carolina1 city · 1.00″Illinois23 cities · 1.00″Alabama1 city · 1.00″Colorado1 city · 1.00″Maryland6 cities · 1.00″Indiana7 cities · 1.00″Virginia5 cities · 1.00″Florida6 cities · 1.00″South Dakota1 city · 1.00″

Hardest hit on July 28, 2023

Showing the 24 largest of 93 cities hit. The rest are under their state above.

What people on the ground measured in the US on July 28, 2023

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.

4.50″ softball size Public
1 ESE Fremont, NE5:22 PM CDTDodge County
Picture of a hailstone compared to a dollar bill. Delayed report.
4.00″ softball size Broadcast Media
1 NE Saronville, NE6:18 PM CDTClay County
Report via the Media. Time estimated from radar.
4.00″ softball size Public
2 E West Salem, WI7:52 PM CDTLa Crosse County
Social media photo with rulers for reference.
3.00″ baseball size Trained Spotter
2 E Fremont, NE5:23 PM CDTDodge County
Photo sent, measured with a ruler. Delayed report.
3.00″ baseball size Trained Spotter
3 NE Bloomer, WI6:12 PM CDTChippewa County
Spiky hail. Most hail stones were 2 in diameter but the largest was 3 in from spike to spike.
3.00″ baseball size Public
Saronville, NE6:20 PM CDTClay County
3.25 inch Hail reported via Facebook with picture of multiple stones along side a tape measure.
3.00″ baseball size Public
1 NW West Salem, WI6:45 PM CDTLa Crosse County
Verified by picture.
3.00″ baseball size Trained Spotter
Galesville, WI7:19 PM CDTTrempealeau County
Measured and confirmed with photo.
3.00″ baseball size Public
1 NW West Salem, WI7:45 PM CDTLa Crosse County
Corrects previous hail report from 1 NW West Salem. Verified by picture.
2.75″ baseball size Public
3 ENE Fremont, NE5:17 PM CDTDodge County
2.75″ baseball size Public
1 SE Fremont, NE5:19 PM CDTDodge County
2.5 to 3 inch hail.
2.75″ baseball size Public
2 N Elkhorn, NE5:55 PM CDTDouglas County
Photo sent. Measured with a ruler. Delayed report.
2.75″ baseball size Trained Spotter
3 N Denver, IA6:23 PM CDTBremer County
2.75″ baseball size Public
3 E Holmen, WI6:33 PM CDTLa Crosse County
2.75″ baseball size Public
Bangor, WI6:52 PM CDTLa Crosse County

Showing the 15 largest of 216 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 July 28, 2023

NOAA radar put hail of an inch or more over 93 cities across 16 states on July 28, 2023. The largest stones — 2.00 inches, hen egg size — were over Winona, MN. Every state hit is listed on this page, and every city under it.

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