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Archived

Avalanche Forecast

Dec 30th, 2021–Dec 31st, 2021
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Little Yoho.

Another bitterly cold, clear, calm day on Friday before winds pick up for the weekend.

Weather Forecast

Expect temperatures Friday AM to be around -30C with clear skies and light winds. On Saturday winds will really pick up midday and last for the weekend with some warming temperatures. Temperatures and winds drop again for next week.

Snowpack Summary

10-40 cm of snow last week and recent wind from various directions has developed wind slabs in the alpine. There is 80-100+ cm over the Dec. 2 crust/facet combo in Little Yoho which exists below 2200m and are monitoring closely. HS at treeline is 180-260cm

Avalanche Summary

Nothing observed in Little Yoho. There was a skier triggered size 2 avalanche below treeline in Kootenay today, likely on the Dec.2 cust/facets which have not been as of yet a problem in the Little Yoho region. Ski hills to the East were reporting wind slab activity to size 2.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Saturday

Avalanche Problems

Wind Slabs

Stronger winds Wednesday night likely created new slabs in the alpine. We have limited observations from this area and are uncertain how prevalent they are.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Watch for surface cracking and stiffer surface layers of snow. Avoid wind loaded terrain.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2