Illinois, Iowa Severe Thunderstorm Warning - Severe | Effective 06/11/2026 07:38

Headline: 
Severe Thunderstorm Warning issued June 11 at 9:38AM CDT until June 11 at 10:30AM CDT by NWS Quad Cities IA IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
June 11, 2026 - 7:38am
Expires: 
June 11, 2026 - 8:30am
Description: 
At 938 AM CDT, severe thunderstorms were located along a line extending from Fredonia to Yarmouth to near Mount Pleasant Municipal Arpt, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Burlington, Monmouth, Mount Pleasant, Aledo, Wapello, Columbus Junction, Oquawka, West Burlington, Burgess, New London, Mediapolis, Winfield, Viola, Danville, Morning Sun, Millersburg, Matherville, Kirkwood, New Boston, and Keithsburg. This also includes Big River State Forest, Delabar State Park, and Henderson County Conservation Area.
Instruction: 
A Tornado Watch remains in effect until 300 PM CDT for northwestern and west central Illinois...and southeastern Iowa. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a sturdy building.
Area Description: 
Henderson, IL; Mercer, IL; Warren, IL; Des Moines, IA; Henry, IA; Louisa, IA
Forcast Office: 
NWS Quad Cities IA IL
Sender: 
w-nws.webmaster@noaa.gov