Weather Alert in Arizona
Flash Flood Warning issued September 4 at 12:09PM MST until September 4 at 6:15PM MST by NWS Flagstaff AZ
AREAS AFFECTED: Coconino, AZ
DESCRIPTION: FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... The North Canyon Wash Basin downstream of the Dragon Bravo Fire scar in...Coconino County in north central Arizona...this includes the Colorado River between mile markers 17 and 21. * Until 615 PM MST /715 PM MDT/ Thursday. * At 1209 PM MST /109 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the North Canyon Wash Basin downstream of the Dragon Bravo Fire scar. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the North Canyon Wash. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the North Canyon Wash Basin downstream of the Dragon Bravo Fire scar. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the North Canyon Wash Basin downstream of the Dragon Bravo Fire scar. * Some locations that will experience flash flooding include... Grand Canyon National Park and Saddle Mountain Wilderness. This includes the Colorado River between mile markers 17 and 21. This includes the following recreation areas and campgrounds... House Rock Camp Site, 18 Mile Wash Camp Site, 18 Mile Ledges Camp Site, Upper North Canyon Camp Site and Lower North Canyon Camp Site. This includes the following creeks, washes and rivers... North Canyon, "18- Mile Wash", "19- Mile Canyon", Colorado River, South Canyon, House Rock Wash, Hanaa Ninadzidzahi and North Canyon Wash.
INSTRUCTION: Flash flooding is occurring or imminent downstream of the Dragon Bravo Fire scar. Severe debris flow are expected across roads and in remote canyon drainages on the Kaibab Plateau east of State Route 67. Campers and hikers should get away from creeks and move to higher ground immediately! Stay away or be swept away!
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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