Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Regions
Glacier.
The Winter Permit System is NOT yet in effect but is scheduled to come into effect on Friday November 23. Click here for information on how to obtain annual and daily winter permits.
Weather Forecast
Southwest flow will bring light flurries and moderate wind today. A low pressure system moves into the interior on Saturday with increased precipitation and rising freezing levels. 20 mm of precipitation is forecast through the weekend
Snowpack Summary
In sheltered treeline areas HS is about 80 to 110 cm. Approximately 45 cm of new and partially settled snow overlies melt-freeze crusts formed in early November. Stability tests show weaknesses down 15 cm in HST and down 55 cm between crust layers.
Avalanche Summary
No new natural avalanches were observed yesterday. Several size 1.5 skier triggered slab avalanches have been reported over the past two days in the Balu Pass and Bruins Pass area.
Confidence
Problems
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.