Hail map — August 21, 2024
NOAA radar detected hail of an inch or more over 2 cities across 1 state on August 21, 2024. The largest stones — 1.00″, quarter size — fell over Tucson, AZ.
- States hit
- 1
- 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.
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States hit on August 21, 2024
Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.
Hardest hit on August 21, 2024
What people on the ground measured in the US on August 21, 2024
15 reports filed with the National Weather Service — 5 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.
- 2.50″ hen egg size Trained Spotter4 NW Murdo, SD9:00 PM CDTJones County
Golf ball to tennis ball size hail.
- 2.50″ hen egg size Public5 N Volborg, MT8:15 PM MDTCuster County
Report from Facebook.
- 2.00″ hen egg size Public8 ESE Ottumwa, SD7:43 PM CDTHaakon County
- 2.00″ hen egg size Public11 SW Richey, MT7:53 PM MDTDawson County
Corrects previous hail report from 11 SW Richey. Report from mPING: Ping Pong Ball (1.50 in.).
- 1.75″ golf ball size Storm Chaser6 SSW Gering, NE6:14 PM CDTScotts Bluff County
Half dollar to golf ball sized hail reported by chaser between County Road 17 and Highway 71.
- 1.50″ half dollar size Public2 NW Willcox, AZ3:25 PM MSTCochise County
Video on social media showing accumulating hail with the biggest hailstone being 1.5 inches in diameter. Another video at same location showed damage to car windshield and dents in hood and roof of car from same person.
- 1.50″ half dollar size Public5 S Bunker, SD8:00 PM CDTStanley County
Marble to Ping Pong Ball sized hail reported to have fallen.
- 1.50″ half dollar size Public11 SW Richey, MT7:53 PM MDTDawson County
Report from mPING: Ping Pong Ball (1.50 in.).
- 1.50″ half dollar size Public5 SE Capa, SD10:10 PM CDTJones County
- 1.25″ half dollar size Trained Spotter8 WNW Tucson, AZ12:23 PM MSTPima County
Trained spotter reported 1.25 inch accumulating hail.
- 1.00″ quarter size Public5 W Chino Valley, AZ12:11 PM MSTYavapai County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained Spotter8 WNW Tucson, AZ12:21 PM MSTPima County
Report from trained spotter of accumulating 1 inch hail.
- 1.00″ quarter size Trained Spotter1 NNW Nemo, SD7:00 PM CDTLawrence County
- 1.00″ quarter size Trained Spotter8 SE Loma, MT6:01 PM MDTChouteau County
Hail up to quarter size falling.
- 1.00″ quarter size Public10 S Vida, MT7:10 PM MDTMcCone County
Showing the 15 largest of 33 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 August 21, 2024
NOAA radar put hail of an inch or more over 2 cities across 1 state on August 21, 2024. The largest stones — 1.00 inches, quarter size — were over Tucson, AZ. Every state hit is listed on this page, and every city under it.