Weather Alert in Alaska
Blizzard Warning issued February 12 at 1:35PM AKST until February 14 at 12:00PM AKST by NWS Fairbanks AK
AREAS AFFECTED: Yukon Delta Coast; Lower Yukon River; St Lawrence Island
DESCRIPTION: * WHAT...Blizzard conditions expected. Total snow accumulations between 3 and 6 inches. Winds gusting as high as 45 mph. * WHERE...Lower Yukon River, St Lawrence Island, and Yukon Delta Coast. * WHEN...From 9 AM Friday to noon AKST Saturday. * IMPACTS...Travel could be very difficult.
INSTRUCTION: Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.
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Current U.S. National Radar--Current
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North America Water Vapor (Moisture)
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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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