Severe Thunderstorm Warning — Yankton County, South Dakota
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 11 at 1:49AM CDT until August 11 at 2:15AM CDT by NWS Sioux Falls SD
SVRFSD The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Northeastern Yankton County in southeastern South Dakota... Southeastern Turner County in southeastern South Dakota... * Until 215 AM CDT. * At 149 AM CDT, a severe thunderstorm was located near Mayfield, or 16 miles south of Parker, moving east at 40 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... Viborg around 155 AM CDT. Centerville around 200 AM CDT.
Effective August 11, 2026 at 2:49 AM ET · Expires August 11, 2026 at 3:15 AM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Sioux Falls SD
Expires
August 11, 2026 at 3:15 AM ET
Last Checked
1 hour ago
What To Do
📋 Official NWS Guidance
For your protection move to an interior room on the lowest floor of a building.
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Get Severe Thunderstorm Warning Alerts for Yankton County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Yankton County, South Dakota?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (1 hour ago). It's set to expire August 11, 2026 at 3:15 AM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Yankton County?
Download StormCast free on Google Play and set Yankton County, South Dakota as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.