Iowa hail map — July 28, 2023
NOAA radar detected hail of an inch or more over 3 Iowa cities on July 28, 2023. The largest stones — 1.00″, quarter size — fell over Dubuque.
- Cities hit
- 3
- in Iowa
- 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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Iowa cities hit on July 28, 2023
What people on the ground measured in Iowa on July 28, 2023
12 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.
- 2.75″ baseball size Trained Spotter3 N Denver, IA6:23 PM CDTBremer County
- 1.75″ golf ball size Public1 NNE Iowa Falls, IA5:59 PM CDTHardin County
Report from social media.
- 1.75″ golf ball size Trained Spotter4 NW Eddyville, IA10:40 PM CDTMahaska County
Golf ball sized hail.
- 1.50″ half dollar size Public6 SW Geneva, IA6:07 PM CDTFranklin County
- 1.50″ half dollar size Public6 SW Geneva, IA6:08 PM CDTFranklin County
Report from mPING: Ping Pong Ball (1.50 in.).
- 1.25″ half dollar size Public3 NW Readlyn, IA6:05 PM CDTBremer County
Delayed report - hail up to half dollar sized.
- 1.25″ half dollar size Public3 NW Readlyn, IA6:20 PM CDTBremer County
Report from mPING of Half Dollar (1.25 in.).
- 1.00″ quarter size 911 Call Center3 W Holland, IA6:48 PM CDTGrundy County
Accompanied with estimated 60 mph wind gust from Wellsburg to Grundy Center area.
- 1.00″ quarter size Broadcast Media1 S Edmore, IA7:39 PM CDTDubuque County
Reported at Dubuque County Fairgrounds.
- 1.00″ quarter size Public2 WNW Marshalltown, IA8:04 PM CDTMarshall County
Delayed Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size 911 Call Center1 S Toledo, IA8:14 PM CDTTama County
- 1.00″ quarter size Trained Spotter2 N Attica, IA11:24 PM CDTMarion County
Largest stones were quarter sized.
Showing the 12 largest of 18 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 states hit on July 28, 2023
Other Iowa hail days
Iowa hail on July 28, 2023
NOAA radar put hail of an inch or more over 3 Iowa cities that day. The largest stones — 1.00 inches, quarter size — were over Dubuque. Every city hit is listed above with its own stone size.