The National Weather Service has issued flash flood warnings for Coconino County that run through midnight Aug. 22.
Doppler radar indicated additional rain over the Havasu Creek basin. Between 0.25 and 0.75 inches of rain have fallen between 4 and 5 p.m. in addition to the 1 to 2 inches that fell earlier Thursday. Flash flooding is ongoing with helicopter rescues being performed.
Life-threatening flash flooding of areas in and around the Havasu Creek basin is ongoing.
Some locations that will experience flash flooding include Little Navajo Falls, Mooney Falls, Beaver Falls, Grand Canyon National Park, Supai, Hualapai Hilltop and Havasupai Reservation.
This includes the following swimming holes: All swimming holes on Havasu Creek near Supai.
This includes the following creeks, washes and rivers: Colorado River, Little Coyote Canyon and Havasu Creek.
Earlier, Doppler radar indicated heavy rain had ended over the Havasu Creek basin. However, between 1 and 2 inches of rainfall was estimated by radar around midday. The rainfall rate was 1 to 2 inches in 30 minutes. Flash flooding is ongoing with a number of campers trapped by the rising water. Water rises along Havasu Creek are projected to be from 15 to 20 feet with the peak occurring about 3:30 p.m. Seek higher ground immediately.
Life-threatening flash flooding of areas in and around the Havasu Creek basin is possible.
Some locations that will experience flash flooding include Little Navajo Falls, Mooney Falls, Beaver Falls, Grand Canyon National Park, Supai, Hualapai Hilltop and Havasupai Reservation.
This includes the following swimming holes: All swimming holes on Havasu Creek near Supai.
This includes the following creeks, washes and rivers: Colorado River, Little Coyote Canyon and Havasu Creek.
Doppler radar indicated thunderstorms producing heavy rain across another warned area. Between 2 and 4 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly.
Life-threatening flash flooding of low-water crossings, creeks, normally dry washes and roads is possible.
Some locations that will experience flash flooding include Desert View Watchtower, Navajo Point, Upton Point, Tusayan Ruins, Grand Canyon National Park, Tanner Trailhead South and Tonto Trailhead East.
This includes the following recreation areas and campgrounds: Desert View Campground, Escalante Canyon Camp Site, Upper Rattlesnake Camp Site, Lower Rattlesnake Camp Site, Opposite Escalante Canyon Camp Site, Upper Nevills Camp Site, Nevills Camp Site, Below Nevills Camp Site, Papago Camp Site, Hance Camp Site and Lower Hance Camp Site.
This includes the following highways: the Colorado River between mile markers 75 and 77; State Route 64 near mile marker 269.
This includes the following creeks, washes and rivers: Colorado River, Escalante Creek, Deer Tank Wash, Red Canyon, 75-Mile Creek, Little Colorado River, Lee Canyon, Tanner Canyon, Cardenas Creek and Papago Creek.
Doppler radar also indicated thunderstorms producing heavy rain across another warned area. Between 0.75 and 1.5 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.
Life-threatening flash flooding of low-water crossings, creeks, normally dry washes and roads is possible.
Some locations that will experience flash flooding include Tappan Spring and Cameron.
This includes the following swimming hole: Tappan Spring.
This includes State Route 64 between mile markers 294 and 295.
This includes the following creeks, washes and rivers: Lava Wash, Burro Canyon Wash, Cedar Wash, Tappan Wash, Campbell Francis Wash and Needmore Wash.
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For the latest watches and warnings, see our weather alert page .
Tips for flood weather
Coconino County officials offered the following tips for residents to prepare for approaching storms and potential flooding threats.
- Protect your property from floodwaters and purchase flood insurance.
- Plan for sheltering where you are and for evacuation.
- Evacuate if advised.
- Seek high ground (for flash floods) or stay on high ground.
- Avoid walking or driving in floodwaters. Depth and velocity of the water are not always obvious; the ground or road may suddenly wash away and hidden dangers may exist; do not attempt to evacuate through floodwaters.
- Know how to avoid injury from debris, contaminated water, carbon monoxide poisoning, electrocution, and damaged buildings and infrastructure.
- Seek professional review or inspection of structures and utilities before entering buildings that are flooded.
This article was generated by The Arizona Republic and USA TODAY Network using data released by the National Weather Service. It was edited by a staff member.
This article originally appeared on Arizona Republic: Flash flood warnings issued for Coconino County; helicopter rescues performed
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