Avalanche Forecast
Issued: Apr 5th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
wlewis,
Avalanche Canada
Watch for lingering wind slabs around ridgelines as you gain elevation
Summary
Confidence
High
Avalanche Summary
On Tuesday a size 1 rider triggered wind slab was reported. Avalanche activity has tapered off but reactivity remains possible on isolated features.
Snowpack Summary
Gradual accumulations of fresh snowfall will be redistributed by southerly winds into wind slabs over 20 cm of settling storm snow on north facing slopes. On sun affected slopes and lower elevations storm snow will fall over a crust - however strong winds will likely keep the crust on the surface.
The middle of the snowpack is strong and contains numerous hard crusts. Near the ground, weak faceted crystals exist. There hasn't been avalanche activity on this layer recently, but it remains on our radar as it may become active with abrupt changes to the snowpack, such as rapid loading (heavy snowfall or rain) or prolonged warming.
Weather Summary
Wednesday Night
Cloudy, up to 5 cm of snow. Moderate to strong southerly winds, freezing levels remain around 1000 m.
Thursday
Cloudy, trace to 5 cm of snow. Moderate to strong southerly winds, freezing levels around 1500 m.
Friday
Cloudy, 5-10 cm of snow. Moderate to strong southerly winds, freezing levels around 1000 m.
Saturday
Cloudy with strong to extreme southerly winds. Light snowfall continues.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Carefully evaluate steep lines for wind slabs.
- Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
Problems
Wind Slabs
Small pockets of wind slab may remain reactive, in isolated features around ridgelines. Check for wind slab above steep lines or in consequential terrain feautres.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 6th, 2023 4:00PM
