Immediate

Responsive action SHOULD be taken immediately

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:14

At 1114 PM CDT, a severe thunderstorm was located 11 miles southwest of Lake Isabel, or 34 miles northeast of Linton, moving east at 20 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... Lake Isabel. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

Arizona Severe Flash Flood Warning | Effective 08/11/2026 21:14

At 914 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include...

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:48

SVRBIS The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... Southeastern Burleigh County in south central North Dakota... Southwestern Kidder County in south central North Dakota... Northwestern Logan County in southeastern North Dakota... * Until 1145 PM CDT. * At 1048 PM CDT, a severe thunderstorm was located near Braddock, or 26 miles north of Linton, moving northeast at 20 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:48

SVRABR The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Southwestern Corson County in north central South Dakota... * Until 1030 PM MDT. * At 948 PM MDT, a severe thunderstorm was located 12 miles west of Shambo Ranch, or 49 miles northwest of Lantry, moving southeast at 20 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:49

SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Northwestern Mellette County in south central South Dakota... Northeastern Jackson County in southwestern South Dakota... Southeastern Haakon County in west central South Dakota... * Until 1045 PM MDT /1145 PM CDT/. * At 949 PM MDT /1049 PM CDT/, severe thunderstorms were located along a line from 6 miles southeast of Ottumwa to over Kadoka, or along a line from 24 miles northeast of Philip to over Kadoka,

Arizona Severe Flash Flood Warning | Effective 08/11/2026 20:50

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... Southwestern Cochise County in southeastern Arizona... Southeastern Santa Cruz County in southeastern Arizona... * Until 1145 PM MST. * At 850 PM MST, trained weather spotters reported thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Gauges in Sierra Vista ad Hereford have recorded 1 to 1.5 inches in the past 45 minutes. Additional

Tennessee Severe Flash Flood Warning | Effective 08/11/2026 20:52

FFWOHX The National Weather Service in Nashville has issued a * Flash Flood Warning for... Southeastern Davidson County in Middle Tennessee... Northern Rutherford County in Middle Tennessee... Northeastern Williamson County in Middle Tennessee... Southwestern Wilson County in Middle Tennessee... * Until 145 AM CDT. * At 1052 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. The expected rainfall rate is 2 inches in 1 hour.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:53

SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Northwestern Bennett County in southwestern South Dakota... Southwestern Jackson County in southwestern South Dakota... Northeastern Oglala Lakota County in southwestern South Dakota... Southeastern Pennington County in west central South Dakota... * Until 1100 PM MDT. * At 953 PM MDT, a severe thunderstorm was located 7 miles northwest of Potato Creek, or 31 miles southwest of Kadoka, moving southeast at 30 mph.

Indiana Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:55

SVRIND The National Weather Service in Indianapolis has issued a * Severe Thunderstorm Warning for... Northern Shelby County in central Indiana... South central Hancock County in central Indiana... West central Rush County in central Indiana... * Until 1230 AM EDT. * At 1155 PM EDT, a severe thunderstorm was located 8 miles south of Greenfield, or 10 miles north of Shelbyville, moving southeast at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected.

Wisconsin Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:56

At 1056 PM CDT, a severe thunderstorm was located 10 miles east of Abbotsford, or 24 miles west of Wausau, moving southeast at 10 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 damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Other locations impacted by the severe thunderstorm include Cherokee, Milan, Edgar, March Rapids, Fenwood, Stratford and Rozellville.
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