Arizona Severe Flood Watch | Effective 09/29/2026 12:31

Headline: 
Flood Watch issued September 29 at 12:31PM MST until September 30 at 5:00AM MST by NWS Flagstaff AZ
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 29, 2026 - 12:31pm
Expires: 
September 30, 2026 - 5:00am
Description: 
* 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.
Instruction: 
Have a way to receive Flash Flood Warnings and be prepared to take action should warnings be issued.
Area Description: 
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
Forcast Office: 
NWS Flagstaff AZ
Sender: 
w-nws.webmaster@noaa.gov