Wind Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible - Likely
- Größe
- 1–2
New snow and wind may form fresh, reactive wind slabs in lee areas.
Be alert to conditions that change with aspect and elevation.
New snow and wind may form fresh, reactive wind slabs in lee areas.
Wet loose avalanches are possible on steep slopes in areas where rain and warm temperatures have weakened the snowpack.
Our limited field data suggests a natural avalanche cycle occurred in the past few days as rain and warm temperatures infiltrated the region. Slab avalanches up to size 2 were reported in the Smithers and Seaton areas.
If you head to the backcountry please consider submitting your observations to the Mountain Information Network.
New snow accumulates atop a moist, and in some places isothermal, snowpack from rain in the past few days. Strong winds will create heavily wind-affected surfaces and redistribute new snow into fresh wind slabs.
We'll need to reassess whether two surface hoar layers in the mid-snowpack have survived or been cleaned out by the rain.
Deeper in the snowpack, a rain crust from early November seems to be bonding well to the surrounding snow.
Thursday Night
Cloudy with up to 5 mm of precipitation. 40 to 60 km/h southwest ridge top wind. Freezing level drops to 1600 m. Treeline temperature 0 °C.
Friday
Mostly cloudy with up to 10 cm of new snow. 40 to 60 km/h southwest ridgetop wind. Freezing level 1400 m. Treeline temperature -1 °C.
Saturday
Cloudy with up to 5 cm of new snow. 30 to 50 km/h south ridge top wind. Treeline temperature -1 °C.
Sunday
A mix of sun and cloud with isolated flurries. 30 to 50 km/h northwest ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.