Weather Alert in Idaho
Avalanche Watch issued February 22 at 10:36PM PST by NWS Spokane WA
AREAS AFFECTED: Bonner, ID; Boundary, ID; Shoshone, ID
DESCRIPTION: AVAOTX The following message is transmitted at the request of the Idaho Panhandle Avalanche Center. ...AVALANCHE WATCH ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER... 19:00 PST Sun Feb 22 2026 The Idaho Panhandle Avalanche Center in Sandpoint has issued a BACKCOUNTRY AVALANCHE WATCH for the following areas: NWS Missoula MT - MTZ001 (MTZ001) NWS Spokane WA - ID 017 (Bonner County)...ID 021 (Boundary County)...ID 079 (Shoshone County) * WHAT...An Avalanche Watch is in effect from Sunday 7 PM PST to Monday 4 PM PST. Very dangerous avalanche conditions are likely to develop by Monday afternoon and raise the danger to High (Level 4of5). * WHERE...The Selkirk, West and East Cabinet, Purcell, and Bitterroot Mountains - Silver Valley above 4,000 feet. * WHEN...In effect from Sun 19:00 PST to Mon 16:00 PST. * IMPACTS...A warm, wet storm will deliver moderate to heavy snowfall to the snowpack. The new snowfall may add enough weight to the snowpack to overload fragile weak snow layers and cause a widespread cycle of avalanches large enough to bury, injure, or kill a person. Some of these avalanches could release naturally, propagate widely across terrain features like ridges, and run long distances into mature forests, valley floors, or flat terrain. It will become very easy for backcountry travelers to trigger them. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in or below avalanche terrain is not recommended during this period. Consult http://www.idahopanhandleavalanche.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.
INSTRUCTION: N/A
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Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
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