Avalanche Forecast
Issued: Jan 20th, 2025 4:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeConditions remain mostly unchanged and the snowpack is static due to an absence of inputs and cold temperatures. The exception is some active reloading in specific areas, where small but freshly formed windslabs can be triggered. Watch and feel for isolated pockets of windslab that might catch you by surprise.
Summary
Confidence
Moderate
Avalanche Summary
Sunshine Village ski patrol reported numerous (ten) size 1 ski cut windslabs in Delerium Dive, propagating up to 25 m wide as a result of active reloading. Otherwise, no reports or observations of new avalanches today.
Snowpack Summary
Wind slabs were forming today from downflow winds on lee slopes in the alpine and at treeline. At treeline, the mid-pack consists of facets over the October crust and depth hoar at the bottom. Snow depths at treeline range from 60-100 cm.
Weather Summary
A ridge of high pressure is established over the region with cold air from the north keeping temperatures low. On Tuesday, a weak system will cross through, giving some overcast skies, light flurries and wind, but nothing significant before the ridge establishes itself again and clear skies return for Wednesday. Temperatures on Tuesday should reach a high of -8 in the valley bottom, so still cool.
Terrain and Travel Advice
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
Problems
Wind Slabs
Downflow winds on Monday were actively reloading very specific areas (steep north-facing terrain) and forming fresh windslabs. These are not widespread and could easily catch someone by surprise if they are not watching for them.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Jan 21st, 2025 4:00PM