Severe Thunderstorm Warning for Dewey, Potter, Walworth Counties SD
If you are in immediate danger, call emergency services now.
For real-time, official alerts and instructions for your exact location, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia) as applicable. This article is a data summary, not a substitute for the issuing agency's live warning.
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Aberdeen has issued a Severe Thunderstorm Warning for northeastern Dewey County, northwestern Potter County, and southwestern Walworth County in north central South Dakota until 8:00 PM CDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- North Central South Dakota
- Issued
- August 25, 2026
- Issuing authority
- NWS Aberdeen SD
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Severe Thunderstorm Warning issued by NWS Aberdeen SD. Effective from August 24, 2026 at 7:02 PM CDT until August 24, 2026 at 8:00 PM CDT.
Affected Areas
Northeastern Dewey County, Northwestern Potter County, and Southwestern Walworth County in north central South Dakota. The storm was located 5 miles southeast of Promise or 19 miles south of Mobridge, moving east at 20 mph. It will be near Promise around 7:05 PM CDT, Blackfoot around 7:25 PM CDT, and Swan Creek Rec Area around 7:45 PM CDT.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Aberdeen SD.
Expected Conditions
Ping pong ball size hail (1.50 inches) and 60 mph wind gusts. Radar indicated.
Timeline
Alert in effect from 7:02 PM CDT to 8:00 PM CDT on August 24, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (910 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 25, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.