Weather Alert in Idaho
Avalanche Warning issued February 24 at 11:47AM MST by NWS Boise ID
AREAS AFFECTED: Adams, ID; Idaho, ID; Valley, ID
DESCRIPTION: The following message is transmitted at the request of the Payette National Forest Avalanche Center. ...The Payette National Forest Avalanche Center in McCall Idaho has issued a BACKCOUNTRY AVALANCHE WARNING... * WHAT...The avalanche danger for the West Central Mountains of Idaho will rise to HIGH on Tuesday afternoon and into Wednesday morning. Rain on snow and heavy, wet snow will create very dangerous avalanche conditions. * WHERE...The West Central Mountains of Idaho, including mountains near the communities of McCall, New Meadows, Donnelly, Cascade, and Yellow Pine. * WHEN...In effect from Tuesday 11:25 MST to Wednesday 11:45 MST. * IMPACTS...A warm, wet storm is bringing wet, heavy snowfall and rising rain levels up to 7000'. Natural and human-triggered avalanches large enough to bury people are very likely to occur. Even smaller steep slopes, like roadcuts, may also avalanche, depositing a surprising amount of debris on the road below.
INSTRUCTION: *Travel on or underneath slopes steeper than 30 degrees is not recommended. Avalanches may run onto groomed snowmobile trails. Pay attention to the terrain above you as conditions change and as more snow and rain fall by the afternoon. Avalanches may impact roadways along the South Fork of the Salmon, Warm Lake Summit, and East Fork South Fork. Consult WWW.PAYETTEAVALANCHE.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. LAT...LON 4491 11627 4497 11622 4488 11606 4440 11601 4429 11609 4431 11620 4439 11626 4461 11628 4468 11635 4479 11634 4485 11626
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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.
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Weather Topic: What is Condensation?
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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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