How big was the hail on April 17, 2026?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over Enid, 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 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 · April 17, 2026

Hail map — April 17, 2026

Name: US hail map — April 17, 2026
Creator: HailMate

NOAA radar detected hail of an inch or more over 22 cities across 7 states on April 17, 2026. The largest stones — 2.00″, hen egg size — fell over Enid, OK.

Hail swath map for Enid, OK on April 17, 2026 showing 2.00 inch hail. — Largest rendered swath of the day: Enid, OK — 2.00″ hail. Each city below has its own map for this storm.

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The April 17, 2026 swath — and every other storm since 2023 across your state
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States hit: 7
Cities hit: 22
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; 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 April 17, 2026

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

Oklahoma2 cities · 2.00″Kansas4 cities · 1.50″Illinois4 cities · 1.50″Wisconsin2 cities · 1.50″Minnesota3 cities · 1.00″Missouri5 cities · 1.00″Iowa2 cities · 1.00″

What people on the ground measured in the US on April 17, 2026

15 reports filed with the National Weather Service — 3 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.

3.25″ baseball size Trained Spotter
Lamont, OK6:25 PM CDTGrant County
Social media image showing a ruler measurement. Time estimated by radar.
3.00″ baseball size Public
2 W Dakota, IL4:24 PM CDTStephenson County
Report from mPING: Tea Cup (3.00 in.).
3.00″ baseball size Public
4 W Jet, OK4:42 PM CDTAlfalfa County
Corrects previous time from 4 W Jet. estimated size looks to be closer to 3.25 inches.
3.00″ baseball size Public
4 W Jet, OK5:09 PM CDTAlfalfa County
estimated size looks to be closer to 3.25 inches.
3.00″ baseball size Fire Dept/Rescue
Lamont, OK6:37 PM CDTGrant County
2.75″ baseball size Public
Dakota, IL4:45 PM CDTStephenson County
report from LOT on Dakota storm.. they received a photo of baseball size hail..
2.75″ baseball size Storm Chaser
Cherokee, OK4:52 PM CDTAlfalfa County
2.75″ baseball size Broadcast Media
Monroe, WI5:30 PM CDTGreen County
Relayed from Broadcast Media (WISC).
2.75″ baseball size Public
Lamont, OK6:30 PM CDTGrant County
2.50″ hen egg size Public
3 ENE Russell, IA2:55 PM CDTLucas County
Time and location estimated from radar.
2.50″ hen egg size Public
Toledo, IA3:10 PM CDTTama County
Time estimated from radar.
2.50″ hen egg size Storm Chaser
Tama, IA3:14 PM CDTTama County
2.50″ hen egg size Public
1 E Lambert, OK4:53 PM CDTAlfalfa County
2.50″ hen egg size Emergency Mngr
1 N North Enid, OK6:22 PM CDTGarfield County
2.50″ hen egg size Trained Spotter
Marshall, OK8:16 PM CDTLogan County

Showing the 15 largest of 353 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 April 17, 2026

NOAA radar put hail of an inch or more over 22 cities across 7 states on April 17, 2026. The largest stones — 2.00 inches, hen egg size — were over Enid, OK. Every state hit is listed on this page, and every city under it.

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