How big was the hail on October 24, 2023?

The maximum estimated stone size anywhere in the country that day was 1.00 inches, over Tucson, AZ. 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 · October 24, 2023

Hail map — October 24, 2023

Name: US hail map — October 24, 2023
Creator: HailMate

NOAA radar detected hail of an inch or more over 11 cities across 3 states on October 24, 2023. The largest stones — 1.00″, quarter size — fell over Tucson, AZ.

Hail swath map for Tucson, AZ on October 24, 2023 showing 1.00 inch hail. — Largest rendered swath of the day: Tucson, AZ — 1.00″ hail. Each city below has its own map for this storm.

Roofing contractors

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The October 24, 2023 swath — and every other storm since 2023 across your state
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States hit: 3
Cities hit: 11
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

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 October 24, 2023

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

Arizona3 cities · 1.00″Minnesota7 cities · 1.00″New Mexico1 city · 1.00″

Hardest hit on October 24, 2023

Tucson, AZ1.00″ · quarter Rochester, MN1.00″ · quarter Casas Adobes, AZ1.00″ · quarter Eden Prairie, MN1.00″ · quarter Catalina Foothills, AZ1.00″ · quarter Shakopee, MN1.00″ · quarter Hobbs, NM1.00″ · quarter Winona, MN1.00″ · quarter Chanhassen, MN1.00″ · quarter Prior Lake, MN1.00″ · quarter Chaska, MN1.00″ · quarter

What people on the ground measured in the US on October 24, 2023

15 reports filed with the National Weather Service — 7 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.

2.50″ hen egg size Emergency Mngr
3 W Sleepy Eye, MN1:18 PM CDTBrown County
Brown county EM received reports of golf ball to tennis ball size hail west of Sleepy Eye. Also some reports of windshield damage.
2.25″ hen egg size Public
Marshfield, WI9:33 AM CDTWood County
2.25″ hen egg size Public
Hewitt, WI9:38 AM CDTWood County
2.25″ hen egg size Trained Spotter
Springfield, MN1:06 PM CDTBrown County
Report with photo measurement sent via Facebook Messenger.
2.25″ hen egg size Trained Spotter
5 SSE Cobden, MN1:27 PM CDTBrown County
Delayed report. Relayed from spotter. House and Vehicle Damage.
2.00″ hen egg size Public
Hewitt, WI9:38 AM CDTWood County
Plenty of damaged vehicles in the neighborhood.
2.00″ hen egg size Public
1 NW Mosinee, WI10:59 AM CDTMarathon County
Report from mPING: Hen Egg (2.00 in.).
2.00″ hen egg size Broadcast Media
Green Valley, WI1:07 PM CDTShawano County
Time estimated by radar. Photo sent via broadcast media. Size at least 2 inches, compared to diameter of a soda can.
2.00″ hen egg size Trained Spotter
Sanborn, MN1:10 PM CDTRedwood County
Report with photo sent via Facebook Messenger.
1.75″ golf ball size Public
1 NW Mosinee, WI9:54 AM CDTMarathon County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Trained Spotter
Knowlton, WI10:07 AM CDTMarathon County
On Hwy 34 near the Marathon Portage County border. Ping pong to golf ball size hail.
1.75″ golf ball size Trained Spotter
5 NE Dovray, MN12:28 PM CDTMurray County
1.75″ golf ball size Public
8 ESE Tracy, MN12:32 PM CDTMurray County
Time is estimated from radar.
1.75″ golf ball size Public
Lamberton, MN12:50 PM CDTRedwood County
Reported via Facebook. Photo shows hail next to a quarter. Estimated golfball sized from photo. Time estimated by radar.
1.75″ golf ball size Emergency Mngr
Springfield, MN1:05 PM CDTBrown County
Reports of quarter to golf ball size hail in Springfield, MN sent via NWSchat.

Showing the 15 largest of 92 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 October 24, 2023

NOAA radar put hail of an inch or more over 11 cities across 3 states on October 24, 2023. The largest stones — 1.00 inches, quarter size — were over Tucson, AZ. Every state hit is listed on this page, and every city under it.

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