Immediate

Responsive action SHOULD be taken immediately

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:49

SVRLOT The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Southwestern Lake County in northeastern Illinois... Southern McHenry County in northeastern Illinois... * Until 445 AM CDT. * At 349 AM CDT, a severe thunderstorm was located near Woodstock, moving southeast at 30 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Palatine, Crystal Lake, Algonquin, Lake in the Hills, McHenry,

Pennsylvania Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:53

SVRCLE The National Weather Service in Cleveland has issued a * Severe Thunderstorm Warning for... Southeastern Erie County in northwestern Pennsylvania... Northeastern Crawford County in northwestern Pennsylvania... * Until 545 AM EDT. * At 453 AM EDT, severe thunderstorms were located along a line extending from near Waterford to near Guys Mills, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. * Locations impacted include...

Michigan Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:54

At 454 AM EDT, a severe thunderstorm was located over Deerfield, or near Blissfield, moving east at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe thunderstorm will remain over mainly rural areas of southeastern Lenawee County, including the following locations... Jasper, Palmyra, Fairfield, Ogden Center, Holloway, and Riga. For your protection move to an interior room on the lowest floor of a building.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:34

SVRFSD The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Southeastern Lincoln County in southeastern South Dakota... * Until 400 AM CDT. * At 333 AM CDT, a severe thunderstorm was located near Newton Hills State Park, or 8 miles southwest of Canton, moving east at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near...

Michigan Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:41

At 441 AM EDT, a severe thunderstorm was located near Blissfield, moving east at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe storm will be near... Blissfield and Deerfield around 445 AM EDT. Other locations impacted by this severe thunderstorm include Manitou Beach-Devils Lake, Seneca, Lime Creek, Munson, Ogden Center, Canandaigua, Palmyra, Sand Creek, Rome Center, and Jasper. For your protection move to an interior room on the lowest floor of a

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:44

At 344 AM CDT, a severe thunderstorm was located near Harvard, moving southeast at 30 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Woodstock, Harvard, Wonder Lake, Hebron, Chemung, and Greenwood. For your protection move to an interior room on the lowest floor of a building.

Illinois Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:23

At 322 AM CDT, a severe thunderstorm was located over Sharon, or near Harvard, moving southeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Woodstock, Harvard, Poplar Grove, Candlewick Lake, Wonder Lake, Sharon, Capron, Hebron, Garden Prairie, Chemung, and Greenwood. For your protection move to an interior room on the lowest floor of a building.

Ohio Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:24

SVRIWX The National Weather Service in Northern Indiana has issued a * Severe Thunderstorm Warning for... Fulton County in northwestern Ohio... * Until 515 AM EDT. * At 424 AM EDT, a severe thunderstorm was located near Morenci, moving southeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Wauseon, Swanton, Delta, Fayette, Metamora, Lyons, Oakshade,

Michigan Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:25

At 424 AM EDT, a severe thunderstorm was located over Morenci, moving southeast at 35 mph. HAZARD...Ping pong ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. This severe storm will be near... Morenci around 430 AM EDT. Other locations impacted by this severe thunderstorm include Manitou Beach-Devils Lake, Seneca, Lime Creek, Munson, Ogden Center, Canandaigua, Palmyra, Sand Creek, Rome Center, and Jasper.

Pennsylvania Severe Severe Thunderstorm Warning | Effective 08/11/2026 01:28

SVRCLE The National Weather Service in Cleveland has issued a * Severe Thunderstorm Warning for... Southwestern Erie County in northwestern Pennsylvania... Northwestern Crawford County in northwestern Pennsylvania... * Until 515 AM EDT. * At 428 AM EDT, a severe thunderstorm was located near Albion, or 14 miles southeast of Conneaut, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. * Locations impacted include...
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