South Dakota hail map — September 11, 2026
NOAA radar detected hail of an inch or more over 2 South Dakota cities on September 11, 2026. The largest stones — 1.50″, half dollar size — fell over Vermillion.
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- The September 11, 2026 swath — and every other storm since 2023 across South Dakota
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- Cities hit
- 2
- in South Dakota
- Largest stone
- 1.50″
- half dollar size
- Impact rating
- 5/10
- 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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South Dakota cities hit on September 11, 2026
What people on the ground measured in South Dakota on September 11, 2026
4 reports filed with the National Weather Service — 4 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.
- 1.50″ half dollar size Trained Spotter6 NNE White, SD7:03 PM CDTBrookings County
- 1.25″ half dollar size Trained SpotterToronto, SD7:00 PM CDTDeuel County
- 1.25″ half dollar size Trained Spotter1 SE Toronto, SD7:05 PM CDTDeuel County
Hail started at 7:05 PM and reached peak size at 7:10 PM, stopped at 7:15 PM.
- 0.70″ penny size Trained Spotter6 WSW Wall Lake, SD7:50 PM CDTMinnehaha County
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 South Dakota hail days
Shopping for a hail app to work South Dakota?
This page is one storm. If you are deciding which tool to work South Dakota 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.
South Dakota hail on September 11, 2026
NOAA radar put hail of an inch or more over 2 South Dakota cities that day. The largest stones — 1.50 inches, half dollar size — were over Vermillion. Every city hit is listed above with its own stone size.