Iowa hail map — September 16, 2023
NOAA radar detected hail of an inch or more over 1 Iowa city on September 16, 2023. The largest stones — 1.00″, quarter size — fell over Clinton.
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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 September 16, 2023
What people on the ground measured in Iowa on September 16, 2023
11 reports filed with the National Weather Service — 7 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.
- 0.88″ penny size Emergency MngrGuttenberg, IA4:26 PM CDTClayton County
- 0.80″ penny size Trained SpotterChariton, IA1:45 PM CDTLucas County
- 0.70″ penny size Trained SpotterCrawfordsville, IA4:00 PM CDTWashington County
Dime size hail falling for at least 5 minutes.
- 0.70″ penny size Emergency MngrEpworth, IA5:50 PM CDTDubuque County
- 0.50″ penny size PublicNew Hampton, IA2:53 PM CDTChickasaw County
Report from mPING: Half-inch (0.50 in.).
- 0.50″ penny size Trained SpotterAlburnett, IA4:19 PM CDTLinn County
- 0.50″ penny size Public2 E Holy Cross, IA5:21 PM CDTDubuque County
- 0.25″ penny size Public5 E Lime Springs, IA1:01 PM CDTHoward County
- 0.25″ penny size Trained Spotter2 SSE Selma, IA3:10 PM CDTVan Buren County
- 0.25″ penny size Public1 S Dewitt, IA3:48 PM CDTClinton County
Pea size hail.
- 0.25″ penny size Trained Spotter1 NNE Centralia, IA5:53 PM CDTDubuque County
These are verified ground reports, updated 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 September 16, 2023
The full US hail map for September 16, 2023 →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.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- 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 September 16, 2023
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 Clinton. Every city hit is listed above with its own stone size.