Illinois Severe Thunderstorm Warning | Effective 05/04/2026 12:48

Headline: 
Severe Thunderstorm Warning issued May 4 at 2:48PM CDT until May 4 at 3:30PM CDT by NWS St Louis MO
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 4, 2026 - 12:48pm
Expires: 
May 4, 2026 - 1:30pm
Description: 
SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Southwestern Clinton County in south central Illinois... Northwestern Washington County in south central Illinois... Eastern Saint Clair County in southwestern Illinois... * Until 330 PM CDT. * At 248 PM CDT, a severe thunderstorm was located over Freeburg, 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. * Locations impacted include... Smithton, Swansea, Belleville, Freeburg, Shiloh, New Athens, Scott AFB, Fayetteville, Mascoutah, St. Libory, New Baden, New Memphis, Johannisburg, Albers, Damiansville, Lively Grove, Okawville, Germantown and Bartelso. This includes the following State Parks... Peabody-River King State Fish and Wildlife Area. This includes Interstate 64 in Illinois between exits 23 and 41.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure.
Area Description: 
Clinton, IL; St. Clair, IL; Washington, IL
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov