Avalanche Forecast
Issued: Jan 2nd, 2018 4:50PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Due to the number of field observations
Weather Forecast
Isolated flurries with a mild inversion until small amounts of snow on Thursday & Friday.WEDNESDAY: Cloudy with isolated flurries. Ridge wind moderate from the south west. High temperatures near +1 Celsius. Freezing level 500m. THURSDAY: Snow. Accumulation 5 cm possible. Ridge wind moderate from the south west. Temperature -2. Freezing level 600 m. FRIDAY: Snow. Accumulation 5 cm possible. Ridge wind strong from the south west. Temperature -2. Freezing level 600 m
Avalanche Summary
Isolated pockets of wind slab (to Size 2) have proven reactive to intentional human triggering, including southerly aspects around 1700m. Although the wind slabs were relatively thin (10 cm thick on average), they did run far.
Snowpack Summary
Surface snow has been affected by winds from a variety of directions. The degree of wind effect varies throughout the region, with the most dramatic winds associated with outflow conditions in western parts of the region near coastal inlets. Sheltered areas may still have 10-30 cm of powder from previous storms. A variable weak layer that formed in mid-December can be found roughly 20 cm below the surface. This mid-December layer is comprised of crusts on solar aspects and feathery surface hoar in sheltered locations.The lower snowpack is generally well settled with two prominent crusts. The late-November crust can be found 30-50 cm below the surface and the October crust is near the base of the snowpack.For an update on conditions from last week (which haven't changed too much) check out the Mountain Information Network (MIN) report here. And please submit your own observations to the MIN!
Problems
Wind Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 3rd, 2018 2:00PM