Arizona Severe Flash Flood Warning | Effective 07/17/2026 18:16

Headline: 
Flash Flood Warning issued July 17 at 6:16PM MST until July 17 at 8:15PM MST by NWS Flagstaff AZ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 17, 2026 - 6:16pm
Expires: 
July 17, 2026 - 8:15pm
Description: 
At 616 PM MST, Doppler radar indicated that the heavy rainfall had ended. However, flash flooding remains a threat from earlier thunderstorms producing heavy rain across the warned area. Between 1 and 2 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, streams, and normally dry washes. This includes the Colorado River between river miles 139 and 143. This includes the following recreation areas and campgrounds... Fishtail Camp Site, Keyhole Camp Site, Above Kanab Camp Site, Above Olo Camp Site and Olo Camp Site. This includes the following creeks, washes and rivers... Colorado River, Specter Chasm, Kanab Creek, Jumpup Canyon, Fossil Canyon, 140- Mile Canyon, Fishtail Canyon, Matkatamiba Canyon and Olo Canyon.
Instruction: 
Stay away or be swept away! The banks of creeks and washes are unstable and unsafe during any flooding event. Get out of washes and creeks if you are camping or hiking! Flooding is occurring or imminent and will inundate creeks and washes.
Area Description: 
Coconino, AZ
Forcast Office: 
NWS Flagstaff AZ