Weather Alert in California
Avalanche Watch issued February 15 at 7:36AM PST by NWS Las Vegas NV
AREAS AFFECTED: Eastern Sierra Slopes of Inyo County
DESCRIPTION: AVAVEF The Eastern Sierra Avalanche Center in Mammoth Lakes has issued a Backcountry Avalanche Watch for the following areas: the Eastern Sierra in Mono County and the Eastern Sierra in Inyo County * WHAT...The avalanche danger is expected to rise to HIGH by tomorrow afternoon and remain elevated into mid-week. * WHERE...The eastern slopes of the Sierra Nevada mountain range between Virgina Lakes on the north to Bishop Creek on the south. * WHEN...In effect from Sun 07:00 PST to Mon 07:00 PST. * IMPACTS...|Heavy snow and extreme winds will create widespread areas of unstable snow.
INSTRUCTION: Very dangerous avalanche conditions are expected to develop. Avalanches may run long distances, and can run into mature forests, valley floors or flat terrain. Travel in avalanche terrain is not recommended. Consult http://www.esavalanche.org or www.avalanche.org for more detailed information Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.
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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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