Avalanche Forecast
Issued: Apr 17th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
mconlan,
Avalanche Canada
Assess for how the new snow is bonding to the snowpack before committing to high consequence terrain.
Summary
Confidence
Avalanche Summary
Several small wet loose avalanches were observed in the region over past few days. Looking forward, a cooling trend with some new snow may form small storm slabs that could be triggered by riders.
Snowpack Summary
Around 5 to 15 cm of new snow is expected above 1100 m by the end of Tuesday. This snow will build on a consolidated snowpack composed of hard snow and bonded melt-freeze crusts. Cornices are very large along alpine ridges.
Weather Summary
Monday Night
Cloudy with snowfall, accumulation 2 to 5 cm with local enhancements possible, 20 km/h southwest wind, treeline temperature -7 °C.
Tuesday
Mostly cloudy with intermittent snowfall, accumulation 2 to 5 cm with local enhancements possible, 20 to 30 km/h southwest wind, treeline temperature -6 °C, freezing level 1100 m.
WednesdayMix of sun and cloud with no precipitation, 10 km/h southwest wind, treeline temperature -4 °C, freezing level 1400 m.
ThursdayCloudy with light snowfall, accumulation 1 to 3 cm, 10 km/h southwest wind, treeline temperature -5 °C, freezing level 1300 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for fresh storm slabs building throughout the day.
- Minimize your exposure time below cornices.
- Be alert to conditions that change with aspect and elevation.
Problems
Storm Slabs
Small storm slabs may form as snow accumulates at higher elevations. Assess for how the snow bonds to previous surfaces, particularly where it builds over a hard melt-freeze crust.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 18th, 2023 4:00PM
