Illinois, Iowa Severe Thunderstorm Warning | Effective 05/04/2026 15:33

Headline: 
Severe Thunderstorm Warning issued May 4 at 5:33PM CDT until May 4 at 6:15PM CDT by NWS Quad Cities IA IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 4, 2026 - 3:33pm
Expires: 
May 4, 2026 - 4:15pm
Description: 
SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Northeastern Henderson County in west central Illinois... Northern Warren County in west central Illinois... Southeastern Mercer County in northwestern Illinois... Southwestern Henry County in northwestern Illinois... Northeastern Des Moines County in southeastern Iowa... * Until 615 PM CDT. * At 533 PM CDT, severe thunderstorms were located along a line extending from Gilchrist to Kossuth, moving east at 35 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. * Locations impacted include... Monmouth, Aledo, Oquawka, Burgess, Mediapolis, Viola, Woodhull, Alpha, Keithsburg, Little York, Rozetta, Seaton, North Henderson, Shale City, New Windsor, Lake Warren, Ogle, Kossuth, Alexis, and Coldbrook. This includes Interstate 74 in Illinois between mile markers 30 and 33.
Instruction: 
For your protection move to an interior room on the lowest floor of a sturdy building. Continuous cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.
Area Description: 
Henderson, IL; Henry, IL; Mercer, IL; Warren, IL; Des Moines, IA
Forcast Office: 
NWS Quad Cities IA IL
Sender: 
w-nws.webmaster@noaa.gov