Iowa Severe Severe Thunderstorm Warning | Effective 08/11/2026 05:30

Headline: 
Severe Thunderstorm Warning issued August 11 at 7:30AM CDT until August 11 at 8:15AM CDT by NWS La Crosse WI
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
August 11, 2026 - 5:30am
Expires: 
August 11, 2026 - 6:15am
Description: 
SVRARX The National Weather Service in La Crosse has issued a * Severe Thunderstorm Warning for... Western Allamakee County in northeastern Iowa... Winneshiek County in northeastern Iowa... * Until 815 AM CDT. * At 730 AM CDT, severe thunderstorms were located along a line extending from Ridgeway to near Calmar to near Fort Atkinson, moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Decorah, Waukon, Calmar, Ossian, Ridgeway, Castalia, Hanover, County Roads A 52 And W 60, State Road 76 And County X 16, Festina, Hesper, Nordness, Highlandville, Lake Meyer County Park, Quandahl, Ludlow, Bluffton, County Road W 46 And Centennial Road, Locust, and Sattre.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Allamakee, IA; Winneshiek, IA
Forcast Office: 
NWS La Crosse WI
Sender: 
w-nws.webmaster@noaa.gov