Weather Alert in Arizona
Flash Flood Warning issued September 4 at 1:24PM MST until September 4 at 4:30PM MST by NWS Flagstaff AZ
AREAS AFFECTED: Coconino, AZ
DESCRIPTION: FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for...Nankoweap Creek...in Coconino County in north central Arizona...this includes the Colorado River between river miles 49 and 53. * Until 430 PM MST /530 PM MDT/. * At 124 PM MST /224 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over Nankoweap Creek. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around Nankoweap Creek. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around Nankoweap Creek. * Some locations that will experience flash flooding include... Grand Canyon National Park and Saddle Mountain Wilderness. This includes the Colorado River between river miles 49 and 53. This includes the following recreation areas and campgrounds... Dinosaur Camp Site, Little Nankoweap Camp Site and Upper Nankoweap Camp Site. This includes the following creeks, washes and rivers... Nankoweap Creek, Saddle Canyon, Colorado River, Nankoweap Canyon and Little Nankoweap Creek.
INSTRUCTION: This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in Nankoweap Creek. 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 are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
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