Minnesota hail map — August 18, 2026
NOAA radar detected hail of an inch or more over 2 Minnesota cities on August 18, 2026. The largest stones — 1.00″, quarter size — fell over Rochester.
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- The August 18, 2026 swath — and every other storm since 2023 across Minnesota
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- Cities hit
- 2
- in Minnesota
- 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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Minnesota cities hit on August 18, 2026
What people on the ground measured in Minnesota on August 18, 2026
4 reports filed with the National Weather Service — 2 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.
- 1.00″ quarter size Public2 SSE Viola, MN2:39 PM CDTOlmsted County
- 1.00″ quarter size Emergency MngrSaint Charles, MN2:59 PM CDTWinona County
- 1.00″ quarter size Trained SpotterAdrian, MN6:38 PM CDTNobles County
Called and reported both quarter sized hail and wind with damage and downed small tree limbs.
- 1.00″ quarter size PublicBigelow, MN7:10 PM CDTNobles County
Delayed Report. Reported via social media.
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 Minnesota hail days
Shopping for a hail app to work Minnesota?
This page is one storm. If you are deciding which tool to work Minnesota 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.
Minnesota hail on August 18, 2026
NOAA radar put hail of an inch or more over 2 Minnesota cities that day. The largest stones — 1.00 inches, quarter size — were over Rochester. Every city hit is listed above with its own stone size.