Key facts
- Alert
- Flash Flood Warning (severe)
- Issued by
- National Weather Service, Flagstaff AZ
- Areas
- Apache, AZ; Navajo, AZ
- Places
- Chinle, Fort Defiance, Window Rock, Many Farms, Lukachukai, Tsaile, St. Michaels, Sanders, Houck, Round Rock, Dennehotso, Chilchinbeto
- In effect
- until 8:30 PM MST, Nov 1, 2026
- Damage threat
- Considerable
- Detection
- Radar indicated
What the National Weather Service says
“Flash flooding is ongoing or expected to begin shortly.”
NWS Flagstaff AZ, Flash Flood Warning, 2:24 PM MST Nov 1, 2026 · official alert
“Life threatening flash flooding of creeks and streams, normally dry washes, urban areas, highways, streets and underpasses.”
NWS Flagstaff AZ, Flash Flood Warning, 2:24 PM MST Nov 1, 2026 · official alert
“Be aware of your surroundings and do not drive on flooded roads.”
NWS Flagstaff AZ, Flash Flood Warning, 2:24 PM MST Nov 1, 2026 · official alert
What to do
Stay away from washes, creeks and low spots while the warning is in effect. The National Weather Service says flooding of washes and creeks will occur, and some dirt roads will become muddy and impassable.
Do not drive on flooded roads. Paved roads and underpasses could flood too. If your route is covered by water, find an alternate route.
Low water crossings become dangerous in heavy rain. Do not try to cross them. Just 6 inches of moving water can knock you down, and 1 foot can sweep a vehicle away.
If you are in a flood-prone area, move to higher ground. Never drive around barricades.
Context
Flood-insurance claims count only insured homes and businesses, so they understate total flood losses. FEMA records show 107 claims in Navajo County between 1978 and 2024, and 10 in Apache County between 1979 and 2023.
Both counties were covered by a federal disaster declaration for severe storms and flooding on September 13, 2021. Both also had a declaration for severe winter storms and flooding on March 18, 2010.
Updates
- NWS Flagstaff AZ issued the flash flood warning until 8:30 PM MST.
History here
Apache County: 10 flood insurance claims in FEMA's National Flood Insurance Program records since 1979, most recent 2023.
Apache County: recent federal disaster declarations
Navajo County: 107 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2024.
Navajo County: recent federal disaster declarations
- DR-4620 (2021): severe storms and flooding
- DR-1888 (2010): severe winter storms and flooding
- DR-1660 (2006): severe storms and flooding
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Questions
- Is there a flash flood warning in Apache and Navajo counties, Arizona?
- Yes. The National Weather Service in Flagstaff issued a Flash Flood Warning for both counties at 2:24 PM MST on Sunday, November 1, 2026. It runs until 8:30 PM MST.
- Which places are affected by the flash flood warning?
- Places named in the warning include Chinle, Fort Defiance, Window Rock, Many Farms, Lukachukai, Tsaile, St. Michaels, Sanders, Houck, Round Rock, Dennehotso and Chilchinbeto. Highways listed include Interstate 40, Highway 160, Highway 191 and State Route 264.
- How serious is this flash flood warning?
- The National Weather Service calls the flash flooding life threatening. Doppler radar indicated heavy rain, and the damage threat is rated considerable.
Sources
- NWS Flagstaff AZ: Flash Flood Warning, Nov 1, 2026 weather.gov
- FEMA OpenFEMA: NFIP claims and disaster declarations fema.gov
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