Flood Watch
Flood Watch issued August 12 at 1:11AM MST until August 13 at 12:00AM MST by NWS Flagstaff AZ
Affected area: Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little Colorado River Valley in Coconino County; Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Western Mogollon Rim; Eastern Mogollon Rim; White Mountains; Northern Gila County; Yavapai County Valleys and Basins; Oak Creek and Sycamore Canyons; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264
Effective: Aug 12, 2026 1:11 AM GMT-0700
Expires: Aug 13, 2026 12:00 AM GMT-0700
Alert details
* WHAT…Elevated potential for Flash Flooding due to excessive
rainfall.
* WHERE…Yavapai County, Coconino County, Navajo County, Apache
County and northern Gila County.
* WHEN…From Noon MST Wednesday through Midnight MST Wednesday
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…
– High moisture values and increased instability will lead to
strong thunderstorms today and this evening.
– Additional information is available at weather.gov/flagstaff.
Safety information
Have a way to receive Flash Flood Warnings and be prepared to take
action should warnings be issued.
Consider changing your plans if you were going to hike, boat, or
paddleboard to a slot canyon or normally dry wash. If you do still
decide to recreate, check in at a nearby visitor center or ranger
station.
Source: NWS Flagstaff AZ
View the official National Weather Service alert
This post is automatically updated from official National Weather Service alert data.
