Avalanche Forecast

Issued: Nov 27th, 2021 4:00PM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is low. Known problems include Loose Wet.

Avalanche Canada dboucher, Avalanche Canada

Heavy rain and high freezing levels keep avalanche danger elevated for another day.

Summary

Confidence

Moderate - We are confident the likelihood of avalanche will increase with the arrival of the forecast weather.

Weather Forecast

Saturday night: Rain, heavy at times; 50-70 mm. Strong to extreme southwest winds. Treeline low temperatures +5 C with freezing levels peaking at 3000 metres. 

Sunday: Rain; 15-25 mm. Moderate to strong southwest winds. Treeline high temperatures +4 C with freezing levels going down at 2000 metres.

Monday: Mainly cloudy with isolated showers. Moderate southwest winds. Treeline high temperatures +3 C with freezing levels at 1800 metres.

Tuesday: Rain, heavy at times; 20-30 mm. Moderate to strong southwest winds. Treeline high temperatures + 3C wih freezing levels at 2200 metres.

Avalanche Summary

No avalanches have been reported in the region. With treeline and below treeline elevations still below threshold depths, avalanche potential is expected to be limited to the highest alpine areas in the region. 

Reports in the region remain limited. Be sure to post your observations to the Mountain Information Network !

Snowpack Summary

A series of incoming storm systems will bring plenty of precipitation. However, due to high freezing levels, most of the precipitation will likely fall as rain. Saturday's storm will peak overnight and bring rain up to 100-140 mm at high alpine elevations. As a result, expect to see moist or wet snow surface conditions right to mountain tops.

Average treeline snow depths are around 80-100 cm with much of treeline and all below treeline elevations still below threshold depths for avalanches.

Early season hazards such as rocks, stumps, and creeks are a concern below the alpine.

Terrain and Travel

  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Even a small avalanche can be harmful if it pushes you into an obstacle or a terrain trap.
  • Avoid terrain traps where the consequence of any avalanche could be serious.

Problems

Loose Wet

An icon showing Loose Wet

Heavy rain will likely weaken surface snow. As a result, expect wet loose avalanches to run on steep terrain. 

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Nov 28th, 2021 4:00PM