Immediate

Responsive action SHOULD be taken immediately

Tennessee Severe Flash Flood Warning | Effective 08/11/2026 19:57

At 1057 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses.

Tennessee Severe Flash Flood Warning | Effective 08/11/2026 19:30

FFWMRX The National Weather Service in Morristown has issued a * Flash Flood Warning for... Northeastern Blount County in east Tennessee... Southeastern Knox County in east Tennessee... Western Sevier County in east Tennessee... * Until 130 AM EDT. * At 1030 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected

Arizona Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:38

SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Southwestern Cochise County in southeastern Arizona... * Until 830 PM MST. * At 738 PM MST, a severe thunderstorm was located 16 miles north of Bisbee, moving northwest at 5 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... Tombstone.

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:39

At 939 PM CDT /839 PM MDT/, a severe thunderstorm was located 9 miles northeast of Heart Butte Dam, or 38 miles west of Mandan, 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 damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Heart Butte Dam. Seek shelter inside a well-built structure and stay away from

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:40

At 840 PM MDT, a severe thunderstorm was located near Haynes, or 13 miles east of Hettinger, 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... Haynes. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:40

At 840 PM MDT, a severe thunderstorm was located 7 miles northeast of Mclaughlin, moving southeast 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. This severe thunderstorm will be near... Mahto around 905 PM MDT. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:42

SVRABR The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Western Corson County in north central South Dakota... * Until 930 PM MDT. * At 842 PM MDT, a severe thunderstorm was located 11 miles southwest of Watauga, or 27 miles west of Bullhead, moving southeast 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.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:43

SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Northwestern Jackson County in southwestern South Dakota... Southwestern Haakon County in west central South Dakota... Southeastern Meade County in west central South Dakota... Southeastern Pennington County in west central South Dakota... * Until 945 PM MDT. * At 843 PM MDT, a severe thunderstorm was located near Quinn, or 23 miles west of Philip, moving southeast at 30 mph. HAZARD...70 mph wind gusts and ping pong ball size hail.

Nebraska Severe Severe Thunderstorm Warning | Effective 08/11/2026 19:43

SVRLBF The National Weather Service in North Platte has issued a * Severe Thunderstorm Warning for... Southwestern Cherry County in north central Nebraska... * Until 1030 PM CDT. * At 942 PM CDT, a severe thunderstorm was located 20 miles north of Ashby, or 38 miles southeast of Gordon, moving southeast 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...
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