Flash Flood Warning

Locations Affected

Full Alert Message

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Flagstaff AZ 800 PM MST Tue Jul 21 2026 The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... Coconino County in north central Arizona... * Until 1100 PM MST /midnight MDT/. * At 800 PM MST /900 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. Additional rainfall amounts of 0.25 to 0.75 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, normally dry washes, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Lees Ferry. This includes the Colorado River near mile marker 0. This includes the following recreation areas and campgrounds... Lees Ferry Camp Site. This includes the following creeks, washes and rivers... Colorado River, Paria River and Ferry Swale Canyon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Flooding of washes and creeks will occur, some dirt roads will become muddy and impassable. Paved roads and underpasses could become flooded as well. && LAT...LON 3687 11158 3691 11161 3694 11166 3696 11170 3697 11176 3699 11178 3700 11181 3700 11188 3698 11184 3697 11180 3694 11177 3693 11170 3689 11164 3686 11160 3686 11159 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE