Illinois, Missouri Tornado Warning | Effective 04/27/2026 10:59

Headline: 
Tornado Warning issued April 27 at 12:59PM CDT until April 27 at 1:15PM CDT by NWS St Louis MO
Event: 
Tornado Warning
Urgency: 
Immediate
Effective: 
April 27, 2026 - 10:59am
Expires: 
April 27, 2026 - 11:15am
Description: 
At 1259 PM CDT, a severe thunderstorm capable of producing a tornado was located over Granite City, moving east at 35 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows and vehicles will occur. Tree damage is likely. This tornado will be near... Granite City, Madison, Fairmont City, Venice, Hartford, St. Louis, Brooklyn, Glasgow Village, Riverview and Spanish Lake around 100 PM CDT. Pontoon Beach, South Roxana and Roxana around 105 PM CDT. Other locations impacted by the tornado include Mitchell and Poag. This includes the following State Parks... Horseshoe Lake State Park. This includes Interstate 55 in Illinois near exit 23.
Instruction: 
Move to an interior room on the lowest floor of a well-built building away from windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Area Description: 
Madison, IL; St. Louis, MO; St. Louis City, MO
Forcast Office: 
NWS St Louis MO