How big was the hail on August 12, 2024?

The maximum estimated stone size anywhere in the country that day was 1.00 inches, over Nogales, 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 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 · August 12, 2024

Hail map — August 12, 2024

Name: US hail map — August 12, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 1 city across 1 state on August 12, 2024. The largest stones — 1.00″, quarter size — fell over Nogales, AZ.

Hail swath map for Nogales, AZ on August 12, 2024 showing 1.00 inch hail. — Largest rendered swath of the day: Nogales, AZ — 1.00″ hail. Each city below has its own map for this storm.

States hit: 1
Cities hit: 1
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 August 12, 2024

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

Arizona1 city · 1.00″

Hardest hit on August 12, 2024

Nogales, AZ1.00″ · quarter

What people on the ground measured in the US on August 12, 2024

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.

2.00″ hen egg size Public
11 N Pawnee Buttes, CO4:52 PM MDTWeld County
2.00″ hen egg size Storm Chaser
3 NE Pawnee Buttes, CO5:30 PM MDTWeld County
1.80″ golf ball size Storm Chaser
10 S Albin, WY3:28 PM MDTLaramie County
Storm Chaser reports 1.8 inch hail via Spotter Network.
1.75″ golf ball size Public
1 NE Southern Pines, NC6:28 AM EDTMoore County
1.75″ golf ball size Storm Chaser
6 N Pine Bluffs, WY3:38 PM MDTLaramie County
Storm Chaser reporting golf ball sized hail 6N of Pine Bluffs.
1.50″ half dollar size Public
1 NNW Olney Springs, CO6:15 PM MDTCrowley County
1.25″ half dollar size Public
2 E Aberdeen, NC6:29 AM EDTMoore County
Half dollar size hail reported in the Highland Trails area of Southern Pines. Time estimated by radar.
1.25″ half dollar size Storm Chaser
Pine Bluffs, WY3:48 PM MDTLaramie County
Storm Chaser reports half dollar sized hail in Pine Bluffs.
1.20″ quarter size Storm Chaser
Pine Bluffs, WY3:53 PM MDTLaramie County
Storm Chaser reported 1.2 inch hail in Pine Bluffs.
1.00″ quarter size Public
9 SW Albin, WY3:10 PM MDTLaramie County
1.00″ quarter size Cocorahs
Heber City, UT3:14 PM MDTWasatch County
1.00″ quarter size Emergency Mngr
Pine Bluffs, WY3:56 PM MDTLaramie County
Emergency Manager reported 1 inch hail in Pine Bluffs.
1.00″ quarter size Trained Spotter
13 W Boise City, OK8:30 PM CDTCimarron County
Report relayed to our office by the Cimarron County Emergency Manager. Time was estimated based on radar data.
0.88″ penny size CO-OP Observer
8 SSE Kim, CO4:02 PM MDTLas Animas County
0.88″ penny size Trained Spotter
1 NNE Olney Springs, CO6:15 PM MDTCrowley County

Showing the 15 largest of 16 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 August 12, 2024

NOAA radar put hail of an inch or more over 1 city across 1 state on August 12, 2024. The largest stones — 1.00 inches, quarter size — were over Nogales, AZ. Every state hit is listed on this page, and every city under it.

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