Immediate

Responsive action SHOULD be taken immediately

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 17:14

At 614 PM MDT, a severe thunderstorm was located near Tiospaye Topa School, or 26 miles south of Mobridge, moving east at 10 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 wind damage to roofs, siding, and trees. This severe thunderstorm will be near... Tiospaye Topa School and Laplant around 615 PM MDT.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 17:16

SVRABR The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Northwestern Hand County in central South Dakota... Northeastern Hyde County in central South Dakota... Western Faulk County in north central South Dakota... Eastern Potter County in north central South Dakota... * Until 800 PM CDT. * At 716 PM CDT, a severe thunderstorm was located 6 miles west of Seneca, or 13 miles southeast of Hoven, moving southeast at 35 mph. HAZARD...Golf ball size hail and 70 mph wind gusts.

Arizona Severe Severe Thunderstorm Warning | Effective 08/29/2026 17:20

SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... South Central Pima County in southeastern Arizona... * Until 615 PM MST. * At 520 PM MST, a severe thunderstorm was located 11 miles east of Topawa, moving northeast at 10 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Kitt Peak, South Komelik, Coldfields and Fresnal Canyon. This includes Route 286 between mile markers 20 and 25.

Montana Severe Severe Thunderstorm Warning | Effective 08/29/2026 17:21

At 620 PM MDT, severe thunderstorms were located along a line extending from 20 miles northeast of Havre to 15 miles northeast of Chinook, moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Chinook, Lohman, Zurich, and Hogeland. For your protection move to an interior room on the lowest floor of a building.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 17:22

FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... Coconino County in north central Arizona...the Colorado River near mile marker 62. * Until 1215 AM MST /115 AM MDT/ Tonight. * At 522 PM MST /622 PM MDT/, Doppler radar indicated thunderstorms that produced heavy rain earlier southwest of Cameron have resulted in a flash flood along the Little Colorado River west of Cameron. Between 1 and 2 inches were estimate by radar earlier in the

Arizona Severe Flash Flood Warning | Effective 08/29/2026 17:27

At 527 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 17:29

At 529 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 16:30

SVRABR The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Southwestern Edmunds County in north central South Dakota... Northeastern Potter County in north central South Dakota... Southeastern Walworth County in north central South Dakota... * Until 730 PM CDT. * At 630 PM CDT, a severe thunderstorm was located 7 miles southeast of Lowry, or 7 miles west of Hoven, moving east at 15 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated.

Utah Severe Severe Thunderstorm Warning | Effective 08/29/2026 16:37

At 537 PM MDT, a severe thunderstorm was located 16 miles northeast of Lake Powell, or 44 miles southeast of Escalante, moving east at 35 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... Lake Powell. For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 16:37

At 437 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.
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