Flagstaff, AZ — The National Weather Service in Flagstaff has issued a Flash Flood Warning for Coconino County in north central Arizona, running through 5:30 PM MST (7:30 PM CDT) Wednesday.

What is happening: Thunderstorms are dropping heavy rain across the warned area. Doppler radar indicated between half an inch and an inch of rain had already fallen by early afternoon, with another half inch to an inch and a half possible. Flash flooding is ongoing or expected to begin shortly.

Local impacts: Washes and creeks will flood. Dirt roads will turn muddy and impassable, and paved roads and underpasses could go under water as well.

What to do: Never drive through flooded roads — turn around, don't drown. If you see water rising around you, get to higher ground immediately. Stay away from normally dry washes, creeks, and underpasses — they can fill with little warning. Keep an eye on the sky and move to higher ground before water arrives.

Source: National Weather Service in Flagstaff, October 21, 2026.