Headline:
Flash Flood Warning issued July 28 at 6:45PM MST until July 28 at 11:00PM MST by NWS Flagstaff AZ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
July 28, 2026 - 6:45pm
Expires:
July 28, 2026 - 11:00pm
Description:
At 645 PM MST, doppler radar indicated that the heavy rain has ended
over the Havasu Creek basin. However, flooding remains a threat from
earlier heavy rainfall. Between 0.5 and 1.5 inches of rain have
fallen. At 200 PM MST, a river gauge on Havasu Creek reported a rapid
rise of 2.5 feet from thunderstorms producing heavy rain over the
Havasu Creek basin. This rise is expected to reach Supai between 6 PM
and 9 PM MST. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding in and around the Havasu Creek basin.
SOURCE...River gauge reported.
IMPACT...Life threatening flash flooding of areas in and around the
Havasu Creek basin.
Some locations that will experience flash flooding include...
Little Navajo Falls, Mooney Falls, Beaver Falls, Havasupai
Reservation, Supai and Hualapai Hilltop.
This includes the Colorado River between river miles 156 and 158.
This includes the following swimming holes...
All swimming holes on Havasu Creek near Supai.
This includes the following creeks, washes and rivers...
Little Coyote Canyon, Sinyella Canyon, Heather Wash, Colorado
River, Pasture Wash, Black Tank Wash and Havasu Creek.
Instruction:
Campers and hikers should hustle to higher ground immediately! Stay
away from creeks and washes!
Foot bridges will be washed out in Supai Campground. Some campsites
will be flooded. Campers may be stranded in portions of the
campground.
Area Description:
Coconino, AZ
Forcast Office:
NWS Flagstaff AZ
Sender:
w-nws.webmaster@noaa.gov