Immediate

Responsive action SHOULD be taken immediately

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 06:57

At 857 AM CDT, severe thunderstorms were located along a line extending from near Jo Daviess County Fairgrounds to near Pearl City to near Shannon, moving east at 50 mph. HAZARD...70 mph wind gusts. SOURCE...Trained weather spotters. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Freeport, Mount Carroll, Lena, Stockton, Lanark, Pearl City, Shannon, Nora, Buena Vista, Loran, Kent, Waddams Grove, Eleroy, Damascus, Lake Le-Aqua-

Ohio Severe Severe Thunderstorm Warning | Effective 08/11/2026 06:57

At 957 AM EDT, a severe thunderstorm was located over Hilliard, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Dublin, Marysville, London, Jefferson, Plain City, West Jefferson, South Charleston, Choctaw Lake, New California, Lake Darby, Brighton, Lafayette, Unionville Center, Newport, Rosedale, Resaca, US Route 33 at US Route 42, Madison Lake, Interstate 70 at US Route 42, and Amity.

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 06:58

At 858 AM CDT, severe thunderstorms were located along a line extending from near South Wayne to Scioto Mills to near Shannon, moving east at 50 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Freeport, Warren, Cedarville, Davis, Dakota, German Valley, Apple River, Winslow, Rock City, Ridott, Nora, Buena Vista, Rock Grove,

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 06:58

At 857 AM CDT, severe thunderstorms were located along a line extending from near Nora to Forreston to Walnut, moving east at 35 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. These severe storms will be near... Dixon and Mount Morris around 905 AM CDT. Other locations in the path of these severe thunderstorms include Oregon, Amboy, Lost Nation, Byron, Franklin Grove, Woodhaven Lakes,

Ohio Severe Flash Flood Warning | Effective 08/11/2026 06:59

At 959 AM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 0.5 inches of rain have fallen. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

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.

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 06:33

SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Whiteside County in northwestern Illinois... Southeastern Carroll County in northwestern Illinois... * Until 945 AM CDT. * At 832 AM CDT, severe thunderstorms were located along a line extending from Mississippi Palisades State Park to Andover to Malone, moving east at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. This line of storms has a history of producing wind damage across portions of eastern Iowa.

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.
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