Weather Alert in Washington
Winter Weather Advisory issued February 22 at 1:40PM PST until February 23 at 1:00PM PST by NWS Spokane WA
AREAS AFFECTED: Western Chelan County
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 2 and 8 inches, including a 40 to 60% chance of 1 inch per hour snowfall rates. * WHERE...Holden Village, Stehekin, and Stevens Pass. * WHEN...From 10 PM this evening to 1 PM PST Monday. * IMPACTS...Winter travel conditions expected, including the Monday morning commute. * ADDITIONAL DETAILS...The highest probabilities for snowfall rates of 1"/hour will be from 2AM and 9AM Monday.
INSTRUCTION: Slow down and use caution while traveling. For the latest travel information in Washington, go to https://wsdot.wa.gov/travel
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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 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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