Avalanche Forecast
Issued: Dec 5th, 2024 4:00PM
The alpine rating is Storm Slabs and Loose Wet.
, the treeline rating is , and the below treeline rating is Known problems includeDangerous avalanche conditions persist as new snow and wind form fresh, reactive storm slabs.
Summary
Confidence
Moderate
Avalanche Summary
Our limited field data suggests a natural avalanche cycle occurred in the past few days as rain and warm temperatures infiltrated the region.
Please consider submitting your observations to the Mountain Information Network.
Snowpack Summary
New snow accumulates atop a moist upper snowpack from rain in the past few days. Strong winds will redistribute new snow and create heavily wind-affected surfaces.
The remainder of the snowpack is strong, with various hard layers and crusts.
Weather Summary
Thursday Night
Cloudy with 5 to 15 mm of precipitation. 40 to 60 km/h southwest ridge top wind. Freezing level drops to 1600 m. Treeline temperature 0 °C.
Friday
Cloudy with rain transitioning to snow, 10 to 30 cm of new snow. 40 to 60 km/h southwest ridgetop wind. Freezing level drops to 1000 m. Treeline temperature -1 °C.
Saturday
Cloudy with up to 10 cm of new snow. 20 to 40 km/h southwest ridge top wind. Treeline temperature -3 °C.
Sunday
A mix of sun and cloud with isolated flurries. 20 to 50 km/h northwest ridgetop wind. Treeline temperature -6 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
- Be alert to conditions that change with elevation, aspect, and exposure to wind.
- Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
Problems
Storm Slabs
New snow and wind will continue to form fresh storm slabs. They will be deepest and most reactive in wind-loaded terrain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
A weak, rain-saturated upper snowpack may still produce natural and human-triggered loose wet avalanches.
Aspects: All aspects.
Elevations: Below Treeline.
Likelihood
Expected Size
Valid until: Dec 6th, 2024 4:00PM