HailEvidence → Keystone, SD → 2026-08-11
Did it hail in Keystone, SD on August 11, 2026?
Yes — NWS storm reports document 13 hail reports within 10 miles of Keystone, SD on August 11, 2026, with hail up to 3.25" (tea cup size).
These are preliminary same-day SPC storm reports; the official Storm Events record for this date is compiled by NWS over the following weeks. This page updates when it lands.
Every recorded report near Keystone on 2026-08-11
Distances are from the Keystone city centroid. Times as recorded by the source (SPC reports are UTC). Showing the nearest 13.
| Distance | Type | Size / speed | Time | Reported near | Source |
|---|---|---|---|---|---|
| 4.6 mi | Hail | 2.50" (tennis ball) | 21:02 UTC | 1 S Rockerville, Pennington | SPC · preliminary |
| 4.9 mi | Hail | 2.00" (hen egg) | 21:03 UTC | 2 SSE Rockerville, Pennington | SPC · preliminary |
| 5.3 mi | Hail | 3.00" (tea cup) | 21:15 UTC | 1 NNE Hayward, Pennington | SPC · preliminary |
| 5.6 mi | Hail | 2.50" (tennis ball) | 20:55 UTC | Rockerville, Pennington | SPC · preliminary |
| 5.6 mi | Hail | 2.00" (hen egg) | 20:59 UTC | Rockerville, Pennington | SPC · preliminary |
| 6.1 mi | Hail | 2.75" (baseball) | 21:15 UTC | 1 E Hayward, Pennington | SPC · preliminary |
| 6.1 mi | Hail | 3.00" (tea cup) | 22:10 UTC | 7 W Hermosa, Custer | SPC · preliminary |
| 6.8 mi | Hail | 2.75" (baseball) | 21:18 UTC | 5 WNW Hermosa, Custer | SPC · preliminary |
| 6.8 mi | Hail | 2.75" (baseball) | 21:26 UTC | 5 WNW Hermosa, Custer | SPC · preliminary |
| 7.6 mi | Hail | 1.25" (half dollar) | 20:55 UTC | 2 NE Rockerville, Pennington | SPC · preliminary |
| 8.2 mi | Hail | 3.00" (tea cup) | 21:19 UTC | 4 WNW Hermosa, Pennington | SPC · preliminary |
| 8.6 mi | Hail | 1.75" (golf ball) | 20:59 UTC | 3 ENE Rockerville, Pennington | SPC · preliminary |
| 8.7 mi | Hail | 3.25" (tea cup) | 21:21 UTC | 4 W Hermosa, Custer | SPC · preliminary |
4.6 mi, hail: “Photo via social media. Time estimated based on radar. (UNR)”
4.9 mi, hail: “Relayed via NWS Cheyenne. Time estimated based on radar. (UNR)”
5.3 mi, hail: “Reported on Rushmore Ranch Rd. Photo via social media. Time estimated based on radar. (UNR)”
5.6 mi, hail: “(UNR)”
5.6 mi, hail: “Numerous broken windshields reported. Hail covered the ground and roads. Photo and report via social media. Time estimated based on radar. (UNR)”
Was your property hit on 2026-08-11?
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Other places hit on August 11, 2026
sources: NOAA SPC page updated 2026-08-12