Avalanche Forecast
Issued: Dec 20th, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
TRettie,
Avalanche Canada
Avoid wind effected terrain. New rider triggerable wind slab will likely develop on Tuesday at all elevations.
Summary
Confidence
Weather Forecast
Monday night: some light flurries possible. Strong Northwest wind with a low of -21 at 1300m.
Tuesday: 15 to 30cm of new snow is expected. Winds will vary in direction throughout the region. In the North the winds will be strong Northwest in the morning and light West in the afternoon. In the South the winds will be strong from the West in the morning and moderate Southwest in the afternoon. High of -17 at 1300m.
Wednesday: the north of the region will see light East winds with some flurries and a high of -16 at 1300m. The South will see moderate West winds with up to 20cm of new snow with a high of -12 at 1300m.
Thursday: some light flurries with light West winds. High of -19 at 1300m.
Avalanche Summary
No new avalanches were reported on the weekend . If you are out in the mountains please consider filling out a Mountain Information Network report.
Snowpack Summary
Wind direction has varied over the last few days. Wind slab could exist on all aspects as a result.
A new surface hoar layer is forming on the surface.
Snowpack depth at treeline typically ranges from 50-250 cm, with the shallower value mainly on the eastern side of the range. The alpine snowpack typically ranges from 150-250 cm.
Terrain and Travel
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Recent wind has varied in direction so watch for wind slabs on all aspects.
- Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
Problems
Wind Slabs
The incoming weather could build new wind slab on all aspects and elevations.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 21st, 2021 4:00PM
