Arizona Severe Flood Watch | Effective 07/20/2026 12:38

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of east central, north central, northeast, and west central Arizona, including the following areas, in east central Arizona, Northern Gila County. In north central Arizona, Black Mesa Area, Coconino Plateau, Eastern Mogollon Rim, Grand Canyon Country, Kaibab Plateau, Little Colorado River Valley in Coconino County, Marble and Glen Canyons, Northeast Plateaus and Mesas Hwy 264 Northward, Northeast Plateaus and Mesas South of Hwy 264 and Western Mogollon Rim. In northeast Arizona, Little Colorado River Valley in Apache County, Little Colorado River Valley in Navajo County and White Mountains. In west central Arizona, Yavapai County Mountains. * WHEN...From Tuesday morning through Tuesday evening. * IMPACTS...Flash flooding will be possible in creeks, normally dry washes, swimming holes, and over recently burned areas. Raging killer currents will be possible in side canyons and narrow slot canyons. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Deep monsoon moisture in place across northern Arizona will lead to storms capable of producing rainfall in excess of 2 inches per hour, resulting in an enhanced risk of flash flooding. - Additional information is available at weather.gov/flagstaff.