Weather Alert in Alaska
Hydrologic Outlook issued August 28 at 8:21AM AKDT by NWS Fairbanks AK
AREAS AFFECTED: South Slopes Of The Central Brooks Range; South Slopes of the Western Brooks Range; Noatak Valley; Lower Kobuk Valley; Upper Kobuk Valleys; Lower Koyukuk Valley; Upper Koyukuk Valley
DESCRIPTION: ESFAFG The headwater tributaries of the Koyukuk, Kobuk and Noatak Rivers have received substantial rainfall in the last several days leading to record crests at Slate Creek near Coldfoot (30 years of record) and Dahl Creek near Kobuk (39 years of record). An additional 0.5" to 1.5" of rainfall is expected to continue in the Western and Central Brooks Range through Friday, keeping water levels on rivers high and continued standing water in poorly drained areas. The crests from the early week rainfall are making their way down the main stems of the Kobuk, Koyukuk, and Noatak Rivers through the end of the week. Expect river levels to remain high through the weekend.
INSTRUCTION: N/A
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Weather Topic: What are Cirrostratus Clouds?
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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.
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Weather Topic: What is Condensation?
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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!
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