How big was the hail on July 29, 2024?

The maximum estimated stone size anywhere in the country that day was 1.50 inches, over Bismarck, ND. 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 29, 2024

Hail map — July 29, 2024

Name: US hail map — July 29, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 18 cities across 3 states on July 29, 2024. The largest stones — 1.50″, half dollar size — fell over Bismarck, ND.

Hail swath map for Bismarck, ND on July 29, 2024 showing 1.50 inch hail. — Largest rendered swath of the day: Bismarck, ND — 1.50″ hail. Each city below has its own map for this storm.

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The July 29, 2024 swath — and every other storm since 2023 across your state
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States hit: 3
Cities hit: 18
Largest stone: 1.50″; half dollar size
Impact rating: 5/10; 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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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 29, 2024

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

North Dakota2 cities · 1.50″Maryland15 cities · 1.00″Illinois1 city · 1.00″

Hardest hit on July 29, 2024

What people on the ground measured in the US on July 29, 2024

15 reports filed with the National Weather Service — 1 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 S Lincoln, ND6:25 PM CDTBurleigh County
Public photo relayed through broadcast media. There is a ruler in the picture.
3.00″ baseball size Public
8 NE Crown Butte Lake, ND5:10 PM CDTMorton County
Report relayed by broadcast media. Time estimated from radar.
2.75″ baseball size Public
Lincoln, ND6:35 PM CDTBurleigh County
Multiple baseball-sized hailstones shown in a photo relayed via social media, fell around 6:35.
2.75″ baseball size Public
5 S Mckenzie, ND7:07 PM CDTBurleigh County
Social media images of baseball size hail near Menoken.
2.75″ baseball size Public
5 E Kulm, ND7:30 PM CDTLaMoure County
Photos from social media show large hailstones next to a baseball.
2.50″ hen egg size Public
7 NNE Mandan, ND5:45 PM CDTBurleigh County
2.50″ hen egg size Cocorahs
2 WNW Okaton, SD5:45 PM CDTJones County
Shredded leaves, car dents, damaged shingles, broken car windows.
2.50″ hen egg size Public
6 N Bismarck, ND5:49 PM CDTBurleigh County
Lasted until 558 pm.
2.00″ hen egg size Public
6 N Bismarck, ND5:45 PM CDTBurleigh County
Hail fell for around 5 minutes overall, along with 0.36 inches of rainfall. Relayed via social media.
2.00″ hen egg size Public
6 N Bismarck, ND5:45 PM CDTBurleigh County
Relayed via social media.
2.00″ hen egg size Public
2 SW Bismarck, ND6:06 PM CDTBurleigh County
Time estimated from radar. Photo shared on social media shows numerous large hailstones with the largest estimated to be 2 inches in diameter.
2.00″ hen egg size Public
6 N Kulm, ND6:56 PM CDTLaMoure County
Radar estimated time.
2.00″ hen egg size Public
10 S Sparks, NE8:27 PM CDTCherry County
Hail reported as larger than golf ball size and submitted pictures.
1.75″ golf ball size Public
8 NE Crown Butte Lake, ND5:10 PM CDTMorton County
Pea to golf ball size hail at Harmon Lake. Report relayed by broadcast media. Time estimated from radar.
1.75″ golf ball size NWS Employee
7 S Baldwin, ND5:43 PM CDTBurleigh County

Showing the 15 largest of 64 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 29, 2024

NOAA radar put hail of an inch or more over 18 cities across 3 states on July 29, 2024. The largest stones — 1.50 inches, half dollar size — were over Bismarck, ND. Every state hit is listed on this page, and every city under it.

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