Avalanche Forecast
Issued: Dec 8th, 2018 4:43PM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Intensity of incoming weather systems is uncertain
Weather Forecast
SATURDAY NIGHT: Cloudy with isolated flurries / Accumulation: trace to 5cm / Alpine temperature: High -1C / Light south ridge wind / Freezing level 1000mSUNDAY: Snow / Accumulation: 25-50cm / Alpine temperature: High 0C / Moderate south ridge wind / Freezing level up to 1800mMONDAY: Cloudy with isolated flurries / Accumulation: up to 10cm / Alpine temperature: High -2C / Light to moderate southwest ridge wind / Freezing level 1200mTUESDAY: Snow / Accumulation: 10-25cm / Alpine temperature: High -4C / Light to moderate south ridge wind / Freezing level 1000m
Avalanche Summary
Around the Whistler area, recent reverse-loading winds have created small (size 1) wind slabs in alpine lee features which are reactive to skier traffic. On steep sun exposed features in the alpine, solar warming has produced small (size 1) loose snow avalanches over the past few days.
Snowpack Summary
In the alpine, snowpack depths are around 150-200 cm. A variable surface layer consisting of a thin sun crust on solar terrain, surface hoar in sheltered areas, and pockets of wind slab in lee features overlies an upper snowpack of 20-30 cm of low density faceted snow. New snow is not expected to bond well with this surface layer. At bottom of the snowpack, a crust buried at the beginning of November is down 100-120 cm and is unreactive to snowpack tests, in higher elevations it looks to be breaking down. Snowpack depths disappear quickly with decreasing elevation.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 9th, 2018 2:00PM