SEVERE THUNDERSTORM WARNING
NWS SIOUX FALLS SD
321 AM EDT FRI AUG 22 2025
SVRFSD
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
South central Lake County in east central South Dakota...
Northwestern Minnehaha County in southeastern South Dakota...
Eastern McCook County in southeastern South Dakota...
North central Turner County in southeastern South Dakota...
* Until 300 AM CDT.
* At 220 AM CDT, a severe thunderstorm was located near Salem, or 14
miles northwest of Lake Vermillion State Recreation Area, moving
southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter 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...
Montrose around 225 AM CDT.
Lake Vermillion State Recreation Area, Canistota, and Humboldt
around 235 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
LAT...LON 4378 9748 4392 9727 4373 9687 4346 9725
4378 9748
$$
CAP
