Arizona Severe Flash Flood Warning | Effective 07/18/2026 15:46

Headline: 
Flash Flood Warning issued July 18 at 3:46PM MST until July 18 at 5:15PM MST by NWS Flagstaff AZ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 18, 2026 - 3:46pm
Expires: 
July 18, 2026 - 5:15pm
Description: 
At 346 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 of 0.5 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. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, normally dry washes, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Seligman and Seligman Airport. This includes the following highways... Interstate 40 between mile markers 115 and 127. Business Interstate 40 between mile markers 140 and 141. Route 66 between mile markers 136 and 139. This includes the following creeks, washes and rivers... Chino Wash, Turkey Canyon, Big Chino Wash and Partridge Creek.
Instruction: 
Flooding of washes and creeks will occur, some dirt roads will become muddy and impassable. Paved roads and underpasses could become flooded as well.
Area Description: 
Coconino, AZ; Yavapai, AZ
Forcast Office: 
NWS Flagstaff AZ