Immediate

Responsive action SHOULD be taken immediately

Arizona Severe Flash Flood Warning | Effective 08/11/2026 22:13

At 1013 PM MST, trained weather spotters reported thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Trained spotters reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:45

At 1145 PM CDT, a severe thunderstorm was located 8 miles south of Wing, or 30 miles northeast of Bismarck, moving northeast 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... Wing, Sterling, Driscoll and Arena. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

Ohio Severe Flood Warning | Effective 08/11/2026 21:51

The Flood Warning will expire at 1 AM EDT early this morning for a portion of central Ohio, including the following areas, Fairfield and Hocking. Flood waters have receded. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until 1100 PM EDT Wednesday for portions of Indiana, Kentucky, and Ohio...

Wisconsin Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:52

At 1152 PM CDT, a severe thunderstorm was located 13 miles east of Marshfield, or 19 miles north of Wisconsin Rapids, moving southeast at 20 mph. Power lines were downed with the storm near Stratford around 1120 PM. 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. Other locations impacted by the severe thunderstorm include Auburndale, Blenker, Milladore, Sherry and Junction City.

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:53

SVRBIS The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... Southeastern Kidder County in south central North Dakota... Southwestern Stutsman County in southeastern North Dakota... * Until 100 AM CDT. * At 1153 PM CDT, a severe thunderstorm was located 7 miles northwest of Streeter, or 38 miles west of Jamestown, moving east at 25 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:57

At 1157 PM CDT, a severe thunderstorm was located near Robinson, or 42 miles southwest of Carrington, moving northeast at 25 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Steele, Tuttle, Pettibone, Robinson, Lake Williams and Horsehead Lake. Seek shelter inside a well-built structure and stay away from

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:57

The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, gusty winds are still possible with this thunderstorm. To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office. A Severe Thunderstorm Watch remains in effect until 600 AM CDT Wednesday for a portion of central South Dakota.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:59

At 1159 PM CDT, severe thunderstorms were located along a line from 7 miles north of Wood to over He Dog, or along a line from 16 miles east of White River to 19 miles west of Mission, moving southeast at 40 mph. THESE ARE DESTRUCTIVE STORMS FOR WOOD, MOSHER. HAZARD...100 mph wind gusts and quarter size hail. SOURCE...Automated observations. IMPACT...You are in a life-threatening situation. Flying debris may be deadly to those caught without shelter. Mobile homes will be destroyed. Expect considerable damage to homes and

South Dakota Severe Severe Thunderstorm Warning | Effective 08-11-2026 21:38

At 1038 PM MDT /1138 PM CDT/, severe thunderstorms were located along a line from over Intersection of Highway 83 and White River to 9 miles southwest of Norris, or along a line from 9 miles north of White River to 26 miles northeast of Martin, moving southeast at 40 mph. THESE ARE DESTRUCTIVE STORMS FOR CEDAR BUTTE, WHITE RIVER. HAZARD...80 mph wind gusts and quarter size hail. SOURCE...Automated observations. IMPACT...Flying debris will be dangerous to those caught without
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