Illinois Severe Thunderstorm Warning | Effective 04/17/2026 16:39

Headline: 
Severe Thunderstorm Warning issued April 17 at 6:39PM CDT until April 17 at 8:00PM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 4:39pm
Expires: 
April 17, 2026 - 6:00pm
Description: 
SVRLOT The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Ogle County in north central Illinois... Winnebago County in north central Illinois... * Until 800 PM CDT. * At 639 PM CDT, severe thunderstorms were located along a line extending from near Cedarville to near Shannon to near Chadwick, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * 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, Durand, Hillcrest, Stillman Valley, Lost Nation, New Milford, Creston, Lindenwood, and Monroe Center.
Instruction: 
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. A Tornado Watch remains in effect until 800 PM CDT for north central Illinois.
Area Description: 
Ogle, IL; Winnebago, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov