NWS Flagstaff AZFF.W 0168September 16, 2026
Flash Flood Warning: Coconino, AZ
The National Weather Service office in Flagstaff issued a flash flood warning for Coconino in Arizona, which was in force until 2:30 p.m. local time on September 16. It was the 168th flash flood warning the NWS office in Flagstaff issued in 2026. Arizona had 145 flash flood warnings in September 2026, against 41 in an average September of 2008-2025 (Arizona's flash flood warnings by year).
ExpiredWarning
In force for 3.1 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Flagstaff AZ
- Area
- Coconino
- State
- Arizona
- Level
- Warning
- Issued
- 11:23 a.m. PDT, September 16, 2026
- Expires
- 2:30 p.m. PDT, September 16, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KFGZ FF.W 0168
- Official source
- National Weather Service: the notice at its source
Flash Flood Warnings in Arizona since 2008Every warning type in Arizona
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... The Labyrinth Canyon and Pace Canyon watersheds in... Coconino County in north central Arizona... * Until 230 PM MST /330 PM MDT/. * At 1123 AM MST /1223 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the Labyrinth Canyon and Face Canyon watersheds. Up to 1.5 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Labyrinth Canyon and Face Canyon watersheds. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the Labyrinth Canyon and Face Canyon watersheds. * Some locations that will experience flash flooding include... Labyrinth Canyon, Tower Butte and Wild Horse Mesa. This includes the following slot canyons... Labyrinth Canyon and Face Canyon. This includes the following creeks, washes and rivers... West Canyon Creek.
What the agency told people to do
Get out of Labyrinth Canyon immediately! Deadly flash flooding is imminent or occurring. Move any beached boats away from the mouth of Labyrinth Canyon immediately! Violent flood waters will drain into Lake Powell at this location.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.