Immediate

Responsive action SHOULD be taken immediately

Utah Severe Severe Thunderstorm Warning | Effective 08/29/2026 19:38

SVRSLC The National Weather Service in Salt Lake City has issued a * Severe Thunderstorm Warning for... North central Millard County in central Utah... Central Juab County in central Utah... * Until 915 PM MDT. * At 837 PM MDT, a severe thunderstorm was located 31 miles south of Fish Springs Wildlife Refuge, or 43 miles west of Delta, moving east at 40 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.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 19:22

At 922 PM CDT, a severe thunderstorm was located 6 miles west of Polo, or 19 miles south of Faulkton, moving southeast at 20 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. This severe thunderstorm will be near... Polo around 940 PM CDT. Seek shelter inside a well-built structure and stay away from

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 19:23

At 923 PM CDT, a severe thunderstorm was located 7 miles south of Lebanon, or 7 miles east of Gettysburg, 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. This severe thunderstorm will be near... Stone Lake around 940 PM CDT. 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 08/29/2026 19:28

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... Central Pima County in southeastern Arizona... * Until 1030 PM MST. * At 728 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 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...Flash flooding caused by thunderstorms. SOURCE...Radar indicated.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 19:11

At 911 PM CDT, a severe thunderstorm was located over Gettysburg, moving east at 20 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. This severe thunderstorm will be near... Gettysburg around 915 PM CDT. Lebanon around 920 PM CDT. Stone Lake around 940 PM CDT.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 19:13

At 913 PM CDT, a severe thunderstorm was located 8 miles west of Polo, or 18 miles southwest of Faulkton, moving southeast 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. This severe thunderstorm will be near... Polo around 940 PM CDT. 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 08-29-2026 18:54

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... South Central Pima County in southeastern Arizona... * Until 945 PM MST. * At 654 PM MST, Doppler radar indicated 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...Life threatening flash flooding. Thunderstorms producing flash flooding.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 18:45

At 645 PM MST, Heavy rain has ended. Earlier in the afternoon radar estimated that from 0.25 to 0.75 inches fell over the area in less than 30 minutes. As a result, flash flooding along Bright Angel Creek in the area of Phantom Ranch and the Transept was observed. Heavy creek flow is ongoing. An air evacuation was conducted of approximately 50 individuals from the Phantom Ranch area. Kaibab Trail and Phantom Ranch are closed until further notice.

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 18:54

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... Southeastern Faulk County in north central South Dakota... * Until 945 PM CDT. * At 854 PM CDT, severe thunderstorms were located along a line from over Faulkton to 14 miles south of Burkmere, or along a line from over Faulkton to 17 miles southwest of Faulkton, moving east at 20 mph.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 18:54

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... South Central Pima County in southeastern Arizona... * Until 945 PM MST. * At 654 PM MST, Doppler radar indicated 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...Life threatening flash flooding. Thunderstorms producing flash flooding.
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