| Event | Severe Thunderstorm Warning |
| Severity | Severe |
| Urgency | Immediate |
| Certainty | Observed |
| Area | Gregory, SD |
| Effective | 9/1/2026, 5:16:00 PM CDT |
| Expires | 9/1/2026, 6:00:00 PM CDT |
Severe Thunderstorm Warning issued September 1 at 5:16PM CDT until September 1 at 6:00PM CDT by NWS Sioux Falls SD
Details
SVRFSD
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for…
South central Gregory County in south central South Dakota…
* Until 600 PM CDT.
* At 516 PM CDT, a severe thunderstorm was located over Naper, or 18
miles west of Spencer, moving northeast at 25 mph.
HAZARD…60 mph wind gusts and half dollar size hail.
SOURCE…Radar indicated.
IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near…
Bonesteel around 530 PM CDT.
Instructions
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
More Stories
⚠️ Severe Thunderstorm Warning – Rock, NE – Tuesday, September 1, 2026
⚠️ Severe Thunderstorm Watch – Custer, NE; Lincoln, NE; Logan, NE – Tuesday, September 1, 2026
⚠️ Special Weather Statement – Hamilton; Stanton – Tuesday, September 1, 2026