Weather Alert in Arizona
Flash Flood Warning issued August 23 at 4:02PM MST until August 23 at 7:00PM 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 Dragon Bravo North and South Canyon Washes in... Coconino County in north central Arizona this includes the Colorado River between river miles 21 and 32... * Until 700 PM MST /800 PM MDT/. * At 402 PM MST /502 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the Dragon Bravo North and South Canyon Washes. Between 0.25 and 0.5 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. Excessive rainfall over the burn scar will result in debris flow moving through the North and South Canyon Washes. 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 Dragon Bravo North and South Canyon Washes. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the Dragon Bravo North and South Canyon Washes. * Some locations that will experience flash flooding include... Grand Canyon National Park and Saddle Mountain Wilderness. This includes the Colorado River between river miles 21 and 32. This includes the following recreation areas and campgrounds... Navajo Pinnacle Camp Site, Lone Cedar Camp Site, Cave Camp Site, Above Tiger Wash Camp Site, Tiger Wash Camp Site, Below Tiger Wash Camp Site, Shinumo Wash Camp Site, Island Camp Site, Fence Fault Camp Site, Sandpile Camp Site, Upper South Canyon Camp Site and South Canyon Camp Site. This includes the following creeks, washes and rivers... House Rock Wash, North Canyon Wash, Colorado River, South Canyon, Shinumo Wash, Sheep Spring Wash, To Hajisho, Tiger Wash, North Canyon and "22- Mile Wash".
INSTRUCTION: This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Dragon Bravo North and South Canyon Washes. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.
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Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
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