How big was the hail on April 30, 2024?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over Ponca City, OK. 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 · April 30, 2024

Hail map — April 30, 2024

Name: US hail map — April 30, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 6 cities across 3 states on April 30, 2024. The largest stones — 2.00″, hen egg size — fell over Ponca City, OK.

Hail swath map for Ponca City, OK on April 30, 2024 showing 2.00 inch hail. — Largest rendered swath of the day: Ponca City, OK — 2.00″ hail. Each city below has its own map for this storm.

States hit: 3
Cities hit: 6
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; 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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States hit on April 30, 2024

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

Oklahoma1 city · 2.00″Kansas3 cities · 1.50″Pennsylvania2 cities · 1.00″

Hardest hit on April 30, 2024

Ponca City, OK2.00″ · hen egg Wichita, KS1.50″ · half dollar Topeka, KS1.00″ · quarter Allentown, PA1.00″ · quarter Whitehall Township, PA1.00″ · quarter Derby, KS1.00″ · quarter

What people on the ground measured in the US on April 30, 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.

4.40″ softball size Trained Spotter
4 S Eagle City, OK5:45 PM CDTBlaine County
Digital caliper measurement. Radar estimated time.
3.73″ baseball size Trained Spotter
4 ENE Fay, OK5:45 PM CDTBlaine County
Digital caliper measurement. Radar estimated time.
3.00″ baseball size Broadcast Media
4 WSW Cloud Chief, OK5:44 PM CDTWashita County
3.00″ baseball size Public
2 SSE Fairfax, MO6:00 PM CDTAtchison County
Public posted picture of 3 inch sized hail.
2.75″ baseball size Law Enforcement
1 SSE Corning, MO5:36 PM CDTHolt County
Significant damage to police patrol car.
2.75″ baseball size Public
7 N Mound City, MO5:57 PM CDTHolt County
Social media report of baseball size hail north of Mound City. Vehicle with broken windshield. Time and location estimated using radar and social media report.
2.75″ baseball size Public
6 W Arkoe, MO6:26 PM CDTNodaway County
Public reported baseball-sized hail on social media.
2.75″ baseball size 911 Call Center
Anthony, KS7:25 PM CDTHarper County
Video of up to baseball size hail in Anthony. Public call corroborates this video. Most of the hail is golf ball size.
2.75″ baseball size 911 Call Center
6 NNW Mystic, IA7:35 PM CDTAppanoose County
Rathbun Lake - Appanoose Co 911.
2.50″ hen egg size Emergency Mngr
8 NNE Bakersfield, TX4:20 PM CDTPecos County
Reports broken windshields and ground covered with hail.
2.50″ hen egg size Public
2 SW Cordell, OK5:31 PM CDTWashita County
Report from mPING: Tennis Ball (2.50 in.).
2.50″ hen egg size Public
3 SE Skidmore, MO6:14 PM CDTNodaway County
Social media report of hail near tennis ball size southwest of Maryville. Time and location estimated from radar and social media report.
2.25″ hen egg size Public
Malvern, IA3:33 PM CDTMills County
Corrects previous hail report from Malvern. Time based on radar.
2.25″ hen egg size Public
Malvern, IA3:47 PM CDTMills County
2.00″ hen egg size Public
Frankfort, KS3:50 PM CDTMarshall County
Larger than golf ball size.

Showing the 15 largest of 200 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 April 30, 2024

NOAA radar put hail of an inch or more over 6 cities across 3 states on April 30, 2024. The largest stones — 2.00 inches, hen egg size — were over Ponca City, OK. Every state hit is listed on this page, and every city under it.

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