How big was the hail on September 5, 2023?

The maximum estimated stone size anywhere in the country that day was 1.00 inches, over Dubuque, IA. 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 MRMS radar, specifically the Maximum Estimated Size of Hail product, ingested directly from the public NOAA archive. It 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 5, 2023

Hail map — September 5, 2023

Name: US hail map — September 5, 2023
Creator: HailMate

NOAA radar detected hail of an inch or more over 2 cities across 2 states on September 5, 2023. The largest stones — 1.00″, quarter size — fell over Dubuque, IA.

Hail swath map for Dubuque, IA on September 5, 2023 showing 1.00 inch hail. — Largest rendered swath of the day: Dubuque, IA — 1.00″ hail. Each city below has its own map for this storm.

States hit: 2
Cities hit: 2
Largest stone: 1.00″; quarter size
Impact rating: 3/10; from stone size

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

Roofing contractors

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Three years of hail swaths, filterable by stone size
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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 can ask for a free inspection from a vetted local roofer.

States hit on September 5, 2023

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

Iowa1 city · 1.00″Tennessee1 city · 1.00″

Hardest hit on September 5, 2023

Dubuque, IA1.00″ · quarter Germantown, TN1.00″ · quarter

What people on the ground measured in the US on September 5, 2023

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

2.75″ baseball size Trained Spotter
3 SSE Mcgregor, MN6:26 PM CDTAitkin County
2.00″ hen egg size Broadcast Media
1 NNE Fort Ripley, MN4:11 PM CDTCrow Wing County
Photo was received showing hail with a quarter with the hail being about twice as large as the quarter in diameter.
2.00″ hen egg size Public
4 S Kimberly, MN6:05 PM CDTAitkin County
Photo sent in via social media of egg sized hail measured next to a golf ball.
2.00″ hen egg size Public
Mcgregor, MN6:22 PM CDTAitkin County
Report via social media with photo. Observer states they had hail of all sizes up to golf ball and egg size shown in photo.
1.50″ half dollar size Public
3 NE Southeast Memphis, TN5:15 PM CDTShelby County
Caller reported large hail up to ping-pong size lasting approximately 5 minutes resulting in small dents on their car.
1.50″ half dollar size Trained Spotter
5 NE Glen, MN6:02 PM CDTAitkin County
1.50″ half dollar size Public
5 SE Lake Lafayette, MO6:20 PM CDTJohnson County
1.50″ half dollar size Amateur Radio
Kingsville, MO6:35 PM CDTJohnson County
1.50″ half dollar size Storm Chaser
2 WSW Bethel Acres, OK9:08 PM CDTPottawatomie County
Social media picture. Location estimated by radar.
1.25″ half dollar size Public
1 W Barrows, MN4:25 PM CDTCrow Wing County
1.25″ half dollar size Storm Chaser
5 S Mannford, OK7:12 PM CDTCreek County
1.00″ quarter size Trained Spotter
Hoyt Lakes, MN3:50 PM CDTSt. Louis County
1.00″ quarter size Amateur Radio
Kingsville, MO6:33 PM CDTJohnson County
1.00″ quarter size Public
Holden, MO6:45 PM CDTJohnson County
Report from mPING: Quarter (1.00 in.).
1.00″ quarter size Broadcast Media
Girard, KS7:13 PM CDTCrawford County
social media picture of hail in Girard.

Showing the 15 largest of 25 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

August 19, 202620 cities · 2.00″August 18, 20266 cities · 1.50″August 17, 20266 cities · 1.00″August 16, 202610 cities · 1.50″August 15, 20268 cities · 1.50″August 14, 202611 cities · 2.00″August 13, 202616 cities · 2.00″August 12, 202610 cities · 1.50″August 11, 202633 cities · 2.00″August 10, 202623 cities · 1.50″August 9, 202649 cities · 1.50″August 8, 20265 cities · 1.50″

Every state with hail on record →

FAQ

US hail on September 5, 2023

NOAA radar put hail of an inch or more over 2 cities across 2 states on September 5, 2023. The largest stones — 1.00 inches, quarter size — were over Dubuque, IA. Every state hit is listed on this page, and every city under it.

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