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 Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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