Extreme

Extraordinary threat to life or property

Illinois Extreme Tornado Warning | Effective 08/11/2026 08:22

At 1022 AM CDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located near Oswego, moving east at 55 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. Locations impacted include... Aurora, Joliet, Naperville, Bolingbrook, Downers Grove, Romeoville,

Illinois Extreme Tornado Warning | Effective 08/11/2026 08:27

TORLOT The National Weather Service in Chicago has issued a * Tornado Warning for... Southeastern Kendall County in northeastern Illinois... Will County in northeastern Illinois... Northeastern Grundy County in northeastern Illinois... Northeastern Kankakee County in northeastern Illinois... * Until 1130 AM CDT. * At 1027 AM CDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located near Minooka, moving east at 55 mph. HAZARD...Tornado.

Illinois Extreme Tornado Warning | Effective 08/11/2026 08:29

TORLOT The National Weather Service in Chicago has issued a * Tornado Warning for... DuPage County in northeastern Illinois... East central Cook County in northeastern Illinois... * Until 1115 AM CDT. * At 1029 AM CDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located over Warrenville, or near Wheaton, moving east at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without

Illinois Extreme Tornado Warning | Effective 08-11-2026 08:10

TORLOT The National Weather Service in Chicago has issued a * Tornado Warning for... Northern Kendall County in northeastern Illinois... Northwestern Will County in northeastern Illinois... Southern Kane County in northeastern Illinois... Southern DuPage County in northeastern Illinois... Southwestern Cook County in northeastern Illinois... * Until 1100 AM CDT. * At 1010 AM CDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located near

Illinois Extreme Tornado Warning | Effective 08/11/2026 08:10

TORLOT The National Weather Service in Chicago has issued a * Tornado Warning for... Northern Kendall County in northeastern Illinois... Northwestern Will County in northeastern Illinois... Southern Kane County in northeastern Illinois... Southern DuPage County in northeastern Illinois... Southwestern Cook County in northeastern Illinois... * Until 1100 AM CDT. * At 1010 AM CDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located near

Illinois Extreme Tornado Warning | Effective 08/11/2026 06:59

At 858 AM CDT, severe thunderstorms capable of producing tornadoes were located along a line extending from near Erie to Hillsdale, moving southeast at 55 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. These dangerous storms will be near... Spring Hill around 905 AM CDT.

Illinois, Iowa Extreme Tornado Warning | Effective 08-11-2026 06:38

TORDVN The National Weather Service in the Quad Cities has issued a * Tornado Warning for... Northeastern Rock Island County in northwestern Illinois... Southwestern Whiteside County in northwestern Illinois... Northeastern Scott County in east central Iowa... * Until 915 AM CDT. * At 838 AM CDT, severe thunderstorms capable of producing a tornado were located along a line extending from Low Moor to near McCausland, moving southeast at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation.

Iowa Extreme Tornado Warning | Effective 08/11/2026 06:37

At 837 AM CDT, a severe thunderstorm capable of producing a tornado was located over Low Moor, or 8 miles southwest of Clinton, moving southeast at 45 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 dangerous storm will be near... Clinton, Camanche, Low Moor, Rock Creek Park, Folletts, and Rock

Illinois, Iowa Extreme Tornado Warning | Effective 08/11/2026 06:38

TORDVN The National Weather Service in the Quad Cities has issued a * Tornado Warning for... Northeastern Rock Island County in northwestern Illinois... Southwestern Whiteside County in northwestern Illinois... Northeastern Scott County in east central Iowa... * Until 915 AM CDT. * At 838 AM CDT, severe thunderstorms capable of producing a tornado were located along a line extending from Low Moor to near McCausland, moving southeast at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation.

Ohio Extreme Tornado Warning | Effective 08/11/2026 06:41

At 941 AM EDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located over Choctaw Lake, moving southeast at 55 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. Locations impacted include... London, Jefferson, West Jefferson, Mechanicsburg, Choctaw Lake, Lake
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