Avalanche Forecast
Issued: Dec 29th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
trettie,
Avalanche Canada
New storm and wind slabs will build throughout the day. These new slabs likely won't bond well to the underlying crust. Avalanche terrain should be avoided.
Summary
Confidence
High
Avalanche Summary
Observations are limited in this region. We suspect that natural storm slab activity will occur on Friday.
Snowpack Summary
Up to 40cm of new snow has likely formed storm and wind slab at treeline and above as well as isolated features below treeline. The largest and most reactive slabs will be found on northerly aspects. A new crust likely extends from 1000m up to 1600m. Below 1000m the snow surface could still be moist.
Once again terrain below treeline has limited or no coverage.
Weather Summary
Thursday Night
Stormy with around 30mm of new precipitation . Moderate southeast winds and Freezing levels rising to 1400m.
Friday
Stormy with up to 70mm of new precipitation expected. Moderate to strong southwest winds and freezing levels around 1400m.
Saturday
Cloudy with light flurries bringing up to 5mm of new precipitation. Light to moderate westerly winds and freezing level around 1200m.
Sunday
Mostly cloudy with the possibility of light flurries bringing trace amounts of new snow. Light southerly winds and freezing levels around 1100m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Avoid all avalanche terrain during periods of heavy snowfall.
- Storm slab size and sensitivity to triggering will likely increase through the day.
- Be alert to conditions that change with aspect and elevation.
Problems
Storm Slabs
New snow and wind will form storm slabs throughout the day. The largest and most reactive slabs will likely be found on north and east aspects. Avalanches could be larger than expected due to the crust slabs will form over.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 30th, 2022 4:00PM
