Key facts
- Alert
- Flash Flood Warning (severe)
- Issued by
- National Weather Service, Flagstaff AZ
- Areas
- Coconino, AZ
- Places
- Supai, Havasupai Reservation, Little Navajo Falls, Mooney Falls, Beaver Falls
- In effect
- until 9:00 AM MST, Nov 3, 2026
- Damage threat
- Considerable
What the National Weather Service says
“Campers and hikers should hustle to higher ground immediately! Stay away from creeks and washes!”
NWS Flagstaff AZ, Flash Flood Warning, 2:05 AM MST Nov 3, 2026 · official alert
“Foot bridges will be washed out in Supai Campground.”
NWS Flagstaff AZ, Flash Flood Warning, 2:05 AM MST Nov 3, 2026 · official alert
“A flood wave is traveling through Cataract/Havasu Creek.”
NWS Flagstaff AZ, Flash Flood Warning, 2:05 AM MST Nov 3, 2026 · official alert
What to do
If you are camping or hiking near Havasu Creek, move to higher ground now. Stay away from creeks and washes, even if the water near you looks calm.
The National Weather Service says foot bridges will be washed out in Supai Campground and some campsites will be flooded. Campers may be stranded in parts of the campground, so do not count on crossing the creek.
The arrival time at Supai may change. Watch for updated National Weather Service statements and follow instructions from local officials.
Never walk or drive into moving water. Just 6 inches of moving water can knock you down, and 1 foot can sweep a vehicle away.
Context
FEMA flood-insurance records list 300 claims in Coconino County from 1978 to 2026, as of September 9, 2026. These numbers count only insured properties, so they understate total flood losses.
FEMA has made disaster declarations for Coconino County that involved flooding, including severe storms and flooding in September 2021 and in October 2010.
Updates
- NWS Flagstaff AZ issued the flash flood warning until 9:00 AM MST.
History here
Coconino County: 300 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.
Coconino County: recent federal disaster declarations
- DR-4620 (2021): severe storms and flooding
- DR-1940 (2010): severe storms and flooding
- DR-1888 (2010): severe winter storms and flooding
Get these alerts on your iPhone
Herebeat is an iPhone app that shows official alerts like these (National Weather Service warnings, earthquakes, wildfires, air quality and more) for the places you save, each with its source and issue time. Download Herebeat on the App Store.
Questions
- Is there a flash flood warning in Coconino County, Arizona?
- Yes. The National Weather Service in Flagstaff issued a Flash Flood Warning for the Havasu Creek basin in Coconino County at 2:05 AM MST. It lasts until 9:00 AM MST on Tuesday, November 3.
- Which places could be hit by flash flooding near Havasu Creek?
- The National Weather Service lists Supai, the Havasupai Reservation, Little Navajo Falls, Mooney Falls and Beaver Falls. It also includes all swimming holes on Havasu Creek near Supai.
- When will the flood reach Supai?
- The National Weather Service estimates impacts at Supai could begin between 9 AM and noon MST, though this may change. Heavy rain far upstream caused a rapid rise on Cataract Creek, and a flood wave is traveling down the creek.
Sources
- NWS Flagstaff AZ: Flash Flood Warning, Nov 3, 2026 weather.gov
- FEMA OpenFEMA: NFIP claims and disaster declarations fema.gov
How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.