Iowa Severe Thunderstorm Warning | Effective 05/17/2026 16:33

Headline: 
Severe Thunderstorm Warning issued May 17 at 6:33PM CDT until May 17 at 7:30PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 17, 2026 - 4:33pm
Expires: 
May 17, 2026 - 5:30pm
Description: 
SVRFSD The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... South central Sioux County in northwestern Iowa... Northwestern Plymouth County in northwestern Iowa... * Until 730 PM CDT. * At 633 PM CDT, a severe thunderstorm was located near Akron, or 13 miles south of Hawarden, moving northeast at 20 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Craig around 640 PM CDT. Other locations in the path of this severe thunderstorm include Ireton, Struble, Le Mars and Maurice.
Instruction: 
Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. A Tornado Watch remains in effect until 1000 PM CDT for northwestern Iowa...and southeastern South Dakota.
Area Description: 
Plymouth, IA; Sioux, IA
Forcast Office: 
NWS Sioux Falls SD
Sender: 
w-nws.webmaster@noaa.gov