Immediate

Responsive action SHOULD be taken immediately

Tennessee Severe Flash Flood Warning | Effective 08/11/2026 20:34

FFWMRX The National Weather Service in Morristown has issued a * Flash Flood Warning for... Blount County in east Tennessee... Southwestern Knox County in east Tennessee... Loudon County in east Tennessee... Northeastern Monroe County in east Tennessee... East Central Roane County in east Tennessee... * Until 230 AM EDT. * At 1134 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain

Arizona Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:35

At 835 PM MST, a severe thunderstorm was located near Hereford, moving northwest at 10 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... Sierra Vista, Hereford, Fort Huachuca, Palominas, Charleston and Ramsey Canyon Preserve. This includes the following highways... Route 90 between mile markers 318 and 336. Route 80 between mile

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:38

SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... West Central Mellette County in south central South Dakota... North Central Bennett County in southwestern South Dakota... Central Jackson County in southwestern South Dakota... * Until 1045 PM MDT /1145 PM CDT/. * At 938 PM MDT /1038 PM CDT/, a severe thunderstorm was located 6 miles east of Cedar Pass, or 17 miles west of Kadoka, moving southeast at 30 mph. THIS IS A DESTRUCTIVE STORM FOR KADOKA, WANBLEE.

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:40

At 1040 PM CDT, a severe thunderstorm was located 5 miles southeast of Mandan, or near Bismarck, moving east at 20 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... Bismarck, Mandan, Lincoln, Menoken, St. Anthony, University Of Mary, Fort Abraham Lincoln State Park, Mcdowell Dam Recreation Area, Huff, Double Ditch Indian Village, Stumpf State Natural Area

North Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:42

At 1042 PM CDT, a severe thunderstorm was located near Braddock, or 24 miles north of Linton, moving northeast 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... Braddock and Kintyre. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

Wisconsin Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:43

SVRGRB The National Weather Service in Green Bay has issued a * Severe Thunderstorm Warning for... Western Marathon County in central Wisconsin... * Until 1145 PM CDT. * At 1043 PM CDT, a severe thunderstorm was located 8 miles east of Abbotsford, or 24 miles west of Wausau, moving southeast at 10 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... Abbotsford around 1045 PM CDT.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:44

SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... East Central Perkins County in northwestern South Dakota... Northwestern Ziebach County in west central South Dakota... * Until 1045 PM MDT. * At 944 PM MDT, a severe thunderstorm was located 7 miles northeast of Meadow, or 24 miles south of Lemmon, moving southeast at 20 mph. HAZARD...Golf ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles.

California Severe Flash Flood Warning | Effective 08/11/2026 20:17

At 817 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts up to 0.25 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.

California Severe Flood Warning | Effective 08/11/2026 20:18

* WHAT...Flooding caused by excessive rainfall will continue this evening. * WHERE...San Bernardino County in southern California... * WHEN...Until 930 PM PDT. * IMPACTS...Low-water crossings are inundated with water and may not be passable. Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS... - At 818 PM PDT, Public reported flooding due to heavy rain along I-15 near Fort Irwin Road in Barstow. Flooding is already occurring. Between 1.5 and 2.5 inches of rain have fallen.

Arizona Severe Severe Thunderstorm Warning | Effective 08/11/2026 20:18

SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Southwestern Cochise County in southeastern Arizona... * Until 900 PM MST. * At 818 PM MST, a severe thunderstorm was located 6 miles northeast of Hereford, moving northwest at 10 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...
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