Iowa hail map — April 18, 2025
NOAA radar detected hail of an inch or more over 1 Iowa city on April 18, 2025. The largest stones — 1.00″, quarter size — fell over Sioux City.
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- The April 18, 2025 swath — and every other storm since 2023 across Iowa
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- Cities hit
- 1
- in Iowa
- Largest stone
- 1.00″
- quarter size
- Impact rating
- 3/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Iowa cities hit on April 18, 2025
What people on the ground measured in Iowa on April 18, 2025
12 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.
- 2.75″ baseball size Public2 NW Waverly, IA3:51 AM CDTBremer County
Photos of baseball sized hail north of Waverly. Time is estimated from radar.
- 2.50″ hen egg size Public6 N Clarksville, IA5:07 AM CDTButler County
photos of tennis ball sized hail.
- 2.00″ hen egg size Public2 NNW Waverly, IA3:52 AM CDTBremer County
Photo posted to social media. Time estimated from radar.
- 2.00″ hen egg size Emergency Mngr1 NW Charles City, IA4:55 AM CDTFloyd County
- 1.75″ golf ball size Public3 S Larrabee, IA1:02 AM CDTCherokee County
Report from mPING: Golf Ball (1.75 in.).
- 1.75″ golf ball size Law Enforcement1 WSW Hampton, IA3:12 AM CDTFranklin County
Golf ball hail throughout Hampton.
- 1.75″ golf ball size Emergency MngrHampton, IA3:17 AM CDTFranklin County
Picture of numerous hailstones close to golf ball size. Occurred over several minutes.
- 1.75″ golf ball size Public4 S Plainfield, IA3:50 AM CDTBremer County
Report from mPING: Golf Ball (1.75 in.).
- 1.50″ half dollar size Public5 W Tripoli, IA4:00 AM CDTBremer County
- 1.50″ half dollar size Trained SpotterTripoli, IA4:06 AM CDTBremer County
Numerous hailstones pictured with largest ping pong ball size.
- 1.50″ half dollar size Public3 ENE Floyd, IA4:54 AM CDTFloyd County
- 1.50″ half dollar size PublicCharles City, IA4:55 AM CDTFloyd County
Showing the 12 largest of 34 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 Iowa hail days
Shopping for a hail app to work Iowa?
This page is one storm. If you are deciding which tool to work Iowa with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
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- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Iowa hail on April 18, 2025
NOAA radar put hail of an inch or more over 1 Iowa city that day. The largest stones — 1.00 inches, quarter size — were over Sioux City. Every city hit is listed above with its own stone size.