Avalanche Forecast
Issued: Feb 1st, 2025 4:00PM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeKeep up the conservative terrain choices, avalanches are likely due to continued snow and wind.
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Summary
Confidence
Moderate
Avalanche Summary
Several natural and human-triggered slab avalanches up to size 1.5 were reported on Friday.
The new snow will be reactive this weekend. Expect storm slabs anywhere deeper deposits have formed and fast-moving dry loose avalanches in steep terrain. Natural avalanches are possible on wind-loaded slopes.
Snowpack Summary
Ongoing snow and wind will build reactive storm slabs over the weekend, with storm totals reaching 15 to 25 cm by Sunday afternoon, with deeper deposits in wind-loaded areas.
The new snow will likely bond poorly to old surfaces, which include melt-freeze crusts on sun-exposed slopes, surface hoar or facets on shaded slopes, and wind-affected snow at higher elevations.
The lower snowpack is strong and bonded.
Weather Summary
Saturday Night
Cloudy with up to 5 cm of snow. 20 to 50 km/h southwest ridgetop wind. Treeline temperature -10 °C.
Sunday
Cloudy with up to 5 cm of snow. 40 km/h southwest ridgetop wind, switching 15 km/h east ridgetop wind. Treeline temperature -15 °C.
Monday
Partly cloudy with a trace of new snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -20 °C.
Tuesday
Mostly clear. 10 km/h northeast ridgetop wind. Treeline temperature -25 °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.
- Avoid freshly wind-loaded terrain features.
- Dial back your terrain choices if you are seeing more than 20 cm of new snow.
- Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.
Problems
Storm Slabs
The new snow will bond poorly to underlying layers, with deeper slabs expected on northeast aspects due to wind loading. Dry loose avalanches are likely in steep terrain.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 2nd, 2025 4:00PM