NWS Flagstaff AZFF.W 0152September 12, 2026
Flash Flood Warning: Yavapai, AZ
The National Weather Service office in Flagstaff issued a flash flood warning for Yavapai in Arizona, which was in force until 7:15 p.m. local time on September 12. It was the 152nd 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 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Flagstaff AZ
- Area
- Yavapai
- State
- Arizona
- Level
- Warning
- Issued
- 4:14 p.m. PDT, September 12, 2026
- Expires
- 7:15 p.m. PDT, September 12, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KFGZ FF.W 0152
- 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... Yavapai County in west central Arizona... * Until 715 PM MST. * At 414 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area, including the Dewey region and along the Agua Fria River drainage south of Dewey. Between 0.75 and 1.75 inches of rain have fallen. Additional rainfall amounts of 0.25 to 0.75 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, normally dry washes, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Dewey. This includes the following highways... State Route 69 between mile markers 278 and 284. Interstate 17 near mile marker 266. This includes the following creeks, washes and rivers... Agua Fria River, Little Hackberry Wash, Ash Creek, Coyote Wash, Lynx Creek, Big Bug Creek, Osborne Spring Wash, Brushy Wash, Chaparral Gulch and Yarber Wash.
What the agency told people to do
Flooding of washes and creeks will occur, some dirt roads will become muddy and impassable. Paved roads and underpasses could become flooded as well. Low water crossings will become dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
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.