Weather Alert in Alaska
Special Weather Statement issued August 1 at 11:09AM AKDT by NWS Fairbanks AK
AREAS AFFECTED: Upper Tanana Valley; Eastern Alaska Range North of Trims Camp; Eastern Alaska Range South of Trims Camp
DESCRIPTION: A system bringing abundant rainfall will move quickly from east to west across the Upper Tanana Valley and Alaska Range Friday evening into Saturday. Rainfall rates of 1" per hour are possible from 7pm Friday evening through around 10am Saturday morning. Rainfall will begin along the Alaska Highway near the Alcan Border and move west to Dry Creek and over the eastern Alaska Range overnight. Short run creeks along the Alaska Highway from Dot lake to Tok may run high and fast, as well as streams draining the Macomb Plateau. Outdoor recreationists should be aware of the threat for heavy rain, high water, and debris flowing down typically dry streambeds.
INSTRUCTION: N/A
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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
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
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