Flash Flood Warning

Full Alert Message

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Flagstaff AZ 808 PM MST Thu Aug 20 2026 The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... The Antelope Creek basin in... Coconino County in north central Arizona... * Until 1115 PM MST /1215 AM MDT/. * At 808 PM MST /908 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the Antelope Creek basin. Between 0.5 and 0.75 inches of rain have fallen. Additional rainfall amounts of 0.25 to 0.5 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 in and around the Antelope Creek basin. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the Antelope Creek basin. * Some locations that will experience flash flooding include... LeChee and Antelope Canyon. This includes the following slot canyons... Upper Antelope Canyon, Lower Antelope Canyon, Canyon X, Cardiac Canyon, Owl Canyon, Rattlesnake Canyon, Mountain Sheep Canyon, Ramshead Canyon, Wind Pebble Canyon and Porcupine Canyon. This includes the following creeks, washes and rivers... Water Holes Canyon and Antelope Creek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Get out of Antelope Canyon and other area slot canyons immediately! Deadly flash flooding is imminent or occurring! && LAT...LON 3694 11143 3690 11138 3680 11132 3675 11144 3689 11143 3694 11144 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE