Flood Watch
Flood Watch issued September 29 at 12:31PM MST until September 30 at 5:00AM MST by NWS Flagstaff AZ
Affected area: Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; 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; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264
Effective: Sep 29, 2026 12:31 PM GMT-0700
Expires: Sep 30, 2026 5:00 AM GMT-0700
Alert details
* WHAT…Flash flooding caused by excessive and long duration
rainfall.
* WHERE…Portions of north central and northeastern Arizona,
including areas from Flagstaff to St. John's and areas northward.
* WHEN…Through late tonight.
* IMPACTS…Flooding will be possible over burn areas, low-water
crossings, creeks, streams, washes and swimming holes. Some larger
creeks and rivers are expected to exceed bankfull. Flooding of
paved roads and highway underpasses will be possible. Unpaved roads
could become muddy and impassable.
* ADDITIONAL DETAILS…
– Low pressure will interact with tropical moisture to produce
numerous showers and embedded thunderstorms, with heavy rain that
will fall over saturated soils and burn scars. This could lead to
flash flooding and rises on streams and rivers.
– 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.
Source: NWS Flagstaff AZ
View the official National Weather Service alert
This post is automatically updated from official National Weather Service alert data.
