| Event | Severe Thunderstorm Warning |
| Severity | Severe |
| Urgency | Immediate |
| Certainty | Observed |
| Area | Charles Mix, SD; Douglas, SD |
| Effective | 8/17/2026, 11:40:00 PM CDT |
| Expires | 8/18/2026, 12:30:00 AM CDT |
Severe Thunderstorm Warning issued August 17 at 11:40PM CDT until August 18 at 12:30AM CDT by NWS Sioux Falls SD
Details
SVRFSD
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for…
North central Charles Mix County in south central South Dakota…
Northwestern Douglas County in south central South Dakota…
* Until 1230 AM CDT.
* At 1139 PM CDT, a severe thunderstorm was located over Platte, or
20 miles northwest of Lake Andes, moving east at 20 mph.
HAZARD…Half dollar size hail.
SOURCE…Radar indicated.
IMPACT…Damage to vehicles is expected.
* This severe thunderstorm will be near…
Platte around 1145 PM CDT.
New Holland around 1155 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.
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