Illinois Severe Thunderstorm Warning | Effective 04/17/2026 17:44

Headline: 
Severe Thunderstorm Warning issued April 17 at 7:44PM CDT until April 17 at 8:00PM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 5:44pm
Expires: 
April 17, 2026 - 6:00pm
Description: 
At 744 PM CDT, severe thunderstorms were located along a line extending from near Loves Park to near Cherry Valley to near Ashton, moving east at 45 mph. HAZARD...70 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Rockford, Loves Park, Machesney Park, Roscoe, Rochelle, South Beloit, Rockton, Byron, Oregon, Mount Morris, Polo, Rockford Airport, Cherry Valley, Winnebago, Davis Junction, Pecatonica, Forreston, Hillcrest, Stillman Valley, Lost Nation, New Milford, Creston, Lindenwood, Monroe Center, and Leaf River.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for north 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. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Ogle, IL; Winnebago, IL
Forcast Office: 
NWS Chicago IL