Immediate

Responsive action SHOULD be taken immediately

South Dakota Severe Severe Thunderstorm Warning | Effective 08/29/2026 18:30

At 830 PM CDT, a severe thunderstorm was located 8 miles south of Burkmere, or 12 miles southwest of Faulkton, moving east at 15 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... Faulkton around 855 PM CDT. Anyone outdoors should move to shelter inside a well-built structure

Utah Severe Flash Flood Warning | Effective 08/29/2026 18:32

At 732 PM MDT, Doppler radar indicated earlier thunderstorms produced heavy rain across portions of Warm Creek, Last Chance Creek, and Croton Canyon down to Lake Powell. Between 0.25 and 1 inch of rain has fallen. 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, streams, slot canyons, and normally dry washes.

Utah Severe Flash Flood Warning | Effective 08/29/2026 18:35

At 735 PM MDT, Doppler radar indicated earlier thunderstorms produced heavy rain across Dry Rock Creek and lower portions of Hole in the Rock Road down to Lake Powell, including Headless Hen Canyon, Coyote Gulch, Forty Mile Gulch, Fifty Mile Gulch, and Davis Gulch. Up to 0.75 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated.

Arizona Severe Severe Thunderstorm Warning | Effective 08/29/2026 18:44

At 644 PM MST, a severe thunderstorm was located near San Miguel, moving west at 5 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... San Miguel, Vamori, South Komelik, Cowlic, Choulic, Coldfields, Itak and Hashan Chuchg. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds. Wind damage with this storm will occur before any rain or lightning.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 18:17

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... North Central Pima County in southeastern Arizona... * Until 915 PM MST. * At 617 PM MST, 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 1 inch 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 18:21

At 821 PM CDT, a severe thunderstorm was located 6 miles northeast of Whitlocks Bay Rec Area, or 12 miles northwest of Gettysburg, moving east 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... Whitlocks Bay Rec Area around 825 PM CDT. Gettysburg around 840 PM CDT. Seek shelter inside a well-built structure and stay away from

Utah Severe Flash Flood Warning | Effective 08/29/2026 18:23

At 723 PM MDT, Doppler radar indicated earlier thunderstorms produced heavy rain across primarily the far upper reaches of the drainage leading into Buckskin Gulch. Water is likely flowing downstream through Lick Wash and into Buckskin Gulch. Up to 0.75 inches of rain have fallen. 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, streams, slot

Utah Severe Flash Flood Warning | Effective 08/29/2026 18:27

At 727 PM MDT, the public reported flows on Wahweap Creek from earlier thunderstorms that produced heavy rainfall over the warned area. Heavy rain fell primarily over upper reaches of the Paria River and over the Paria River near the confluence with Cottonwood Creek over to Wahweap Creek. Water will continue to flow downstream through Lower Hackberry Canyon, Bull Valley Gorge, and the Lower Paria River Canyon. Up to 1.00 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly.

Arizona Severe Flash Flood Warning | Effective 08-29-2026 18:04

At 604 PM MST, Doppler radar indicated intense thunderstorms producing very 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.

Arizona Severe Flash Flood Warning | Effective 08/29/2026 18:04

At 604 PM MST, Doppler radar indicated intense thunderstorms producing very 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.
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