Hail map — May 31, 2026
NOAA radar detected hail of an inch or more over 4 cities across 3 states on May 31, 2026. The largest stones — 1.00″, quarter size — fell over Sioux City, IA.
- States hit
- 3
- Cities hit
- 4
- 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.
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States hit on May 31, 2026
Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.
What people on the ground measured in the US on May 31, 2026
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.
- 3.50″ baseball size Storm ChaserGridley, KS10:52 PM CDTCoffey County
Delayed report. Video and pictures on social media from storm chaser.
- 2.50″ hen egg size Emergency MngrGridley, KS10:52 PM CDTCoffey County
Emergency manager relayed photo of estimated tennis ball size hail in Gridley. Time estimated from radar.
- 2.25″ hen egg size Public3 E Gridley, KS10:50 PM CDTCoffey County
Resent. Report from mPING: Hen Egg+ (2.25 in.).
- 2.00″ hen egg size PublicTrimble, MO12:51 AM CDTClinton County
Report from mPING: Hen Egg (2.00 in.).
- 2.00″ hen egg size PublicTrimble, MO12:55 AM CDTClinton County
- 1.75″ golf ball size PublicCooter, MO6:05 PM CDTPemiscot County
- 1.75″ golf ball size Public2 N Canistota, SD6:51 PM CDTMcCook County
Most hail was pea to quarter sized, but a few were as big as golf balls. Farm fields further north are more damaged than his.
- 1.75″ golf ball size Emergency Mngr3 SW Olpe, KS9:04 PM CDTLyon County
- 1.75″ golf ball size Public5 W Gridley, KS10:31 PM CDTGreenwood County
Report from mPING.
- 1.75″ golf ball size Public6 W Le Roy, KS11:26 PM CDTCoffey County
Report from mPING: Golf Ball (1.75 in.).
- 1.75″ golf ball size Public2 NNW Platte Woods, MO12:42 AM CDTPlatte County
Social media report. Time estimated from radar.
- 1.75″ golf ball size Public2 SSE Trimble, MO12:47 AM CDTClay County
Social media report. Time estimated from radar.
- 1.50″ half dollar size Public3 E Grandin, MO3:42 PM CDTCarter County
Report received via social media. Time estimated by radar.
- 1.50″ half dollar size Trained Spotter4 NE Canistota, SD6:58 PM CDTMcCook County
Ping pong ball sized hail damaged young crops in fields.
- 1.50″ half dollar size PublicHinton, IA11:30 PM CDTPlymouth County
Report from social media. Time estimated by radar.
Showing the 15 largest of 65 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
US hail on May 31, 2026
NOAA radar put hail of an inch or more over 4 cities across 3 states on May 31, 2026. The largest stones — 1.00 inches, quarter size — were over Sioux City, IA. Every state hit is listed on this page, and every city under it.