Avalanche Forecast
Issued: Apr 11th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
zryan,
Avalanche Canada
Spring is a dynamic time of year. Conditions can vary widely and change rapidly.
Verify conditions in your local area and tune in to changes with aspect, elevation and time of day.
Summary
Confidence
Avalanche Summary
On Wednesday, a few cornice-triggered storm and wind slabs (size 1-2.5) were reported from north-facing alpine terrain.
Looking forward to Friday, human-triggered wind slabs will remain possible. Avoid wind-loaded areas and be mindful of overhead exposure.
Snowpack Summary
5 to 15 cm of recent snowfall overlies up to 30 cm of more settled, wind-affected snow.
Below the recent snow is a crust everywhere except true north facing terrain at upper elevations.
The facet/crust layer that produced large avalanches during early March is down 80 to 150 cm. It is currently considered to be dormant in most locations.
Many areas below treeline are either snow free or have very thin snow coverage. Expect difficult travel at lower elevations.
Weather Summary
Thursday Night
Cloudy with up to 5 cm of new snow accumulation above the rain-snow line. 5 to 20 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1200 m.
Friday
Cloudy with afternoon clearings. Light south ridgetop wind. Treeline temperature reaches a high of 0 °C. Freezing level rises to 1900 m.
Saturday
Mostly sunny. 5 to 15 km/h southwest ridgetop wind. Treeline temperature reaches a high of +5 °C. Freezing level rises to 2500 m.
Sunday
Mostly sunny. 15 to 40 km/h northwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2100 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Remember that in the spring strong solar radiation and warm temperatures can weaken the snow in a matter of minutes.
- Minimize overhead exposure; avalanches triggered by warming or cornice fall may be large and destructive.
- Stay off recently wind loaded slopes until they have had a chance to stabilize.
Problems
Wind Slabs
Recent snowfall and southwest winds have formed wind slabs in lee terrain features in the alpine and treeline.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 12th, 2024 4:00PM
