Illinois Severe Thunderstorm Warning | Effective 04/27/2026 15:56

Headline: 
Severe Thunderstorm Warning issued April 27 at 5:56PM CDT until April 27 at 6:30PM CDT by NWS St Louis MO
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 27, 2026 - 3:56pm
Expires: 
April 27, 2026 - 4:30pm
Description: 
At 556 PM CDT, a severe thunderstorm was located over Jerseyville, moving northeast at 50 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Fieldon, Otterville, Jerseyville, Kane, Old Kane, Fidelity, Piasa, Kemper, Medora, Rockbridge, Chesterfield, Plainview and Hettick. This includes the following State Parks... Beaver Dam State Park.
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: 
Greene, IL; Jersey, IL; Macoupin, IL
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov