Avalanche Forecast
Issued: Dec 22nd, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
TRettie,
Avalanche Canada
Avoid avalanche terrain in the South of the region and any other area that receives more then 25cm of new snow. Wind and snowfall amounts vary greatly around the region.
Summary
Confidence
Low - Uncertainty is due to the track & intensity of the incoming weather system.
Weather Forecast
Wednesday night: No new snow is expected in the North of the region. Winds will be moderate from the North with a low of -16 at 1300m. The South will see as much as 40cm of new snow with strong Southwest winds and a low of -9 at 1300m.
Thursday: some light flurries with light winds from the Northwest. High of -16 at 1300m.
Friday: no new snow expected. Light to moderate winds from the North in the morning and from the East in the afternoon. A high of -21 at 1300m.
Saturday: some light flurries with moderate to strong East winds and temperatures steady around -27 at 1300m.
Avalanche Summary
On Tuesday our field team observed 2 size 1.5 natural wind slabs releasing from steep start zones in the treeline as well as several loose dry avalanches in similar terrain.
Snowpack Summary
Storm slabs will likely be found in the Southern part of the Forecast region, especially in the Renshaw area.
Wind direction has varied over the last few days. Wind slab could exist on all aspects as a result.Â
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A new surface hoar layer up to size 4 has just been buried.
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
- 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.
- Continue to make conservative terrain choices while the storm snow settles and stabilizes.
Problems
Storm Slabs
The South of the forecast region will likely experience a natural storm cycle Wednesday evening and Thursday morning. avoid avalanche terrain in the Renshaw and other areas that receive more then 25cm of new snow overnight. The North of the forecast region will likely still have rider triggerable wind slab in the treeline and above.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 23rd, 2021 4:00PM
