Illinois Severe Thunderstorm Warning | Effective 04/17/2026 18:21

Headline: 
Severe Thunderstorm Warning issued April 17 at 8:21PM CDT until April 17 at 9:00PM CDT by NWS Lincoln IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 6:21pm
Expires: 
April 17, 2026 - 7:00pm
Description: 
At 820 PM CDT, severe thunderstorms were located along a line extending from Camp Grove to near Spring Bay to near Glasford to near Mason City to near Ashland, moving east at 70 mph. There have also been numerous embedded tornadoes within this line. HAZARD...70 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. These severe storms will be near... Peoria, Pekin, East Peoria, Chillicothe, Lacon, Bartonville, Creve Coeur, West Peoria, Germantown Hills, and Marquette Heights around 825 PM CDT. Henry around 830 PM CDT. This includes the following highways... Interstate 474 between mile markers 0 and 14. Interstate 74 between mile markers 73 and 98.
Instruction: 
A Tornado Watch remains in effect until 1100 PM CDT for central, north central and west central Illinois. 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. This is a DANGEROUS SITUATION. These storms are producing widespread wind damage. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Lincoln. Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage.
Area Description: 
Cass, IL; Fulton, IL; Marshall, IL; Mason, IL; Menard, IL; Peoria, IL; Stark, IL; Tazewell, IL; Woodford, IL
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov