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Avalanche Forecast

Jan 5th, 2022–Jan 6th, 2022
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
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Glacier.

The avalanche hazard will start to rise on  Thursday, and peak on Friday as we receive more new snow, rising temperatures, and strong wind!

Weather Forecast

The forecast for Thursday is 15cm of new snow with mod southerly winds and a mild rise in temperature. Another 15 is expected to fall Thursday night into Friday, with strong southerly winds and a significant rise in temperature. On Saturday the snow eases off, with mild flurries, then drying conditions as a high pressure starts to move over us.

Snowpack Summary

~35cm of new storm snow overlies colder facetted snow in sheltered locations. In exposed areas in the Alpine and at Treeline, moderate winds formed soft slabs along ridge crests and unprotected terrain features. The Dec 1 crust is buried 80-130cm, with faceted snow above and below it (especially in shallow areas).

Avalanche Summary

Several avalanches to size 3 were observed in the steep paths of Macdonald and Tupper on Tuesday morning. These were triggered by mod-strong southerly wind. Frequent flyer was reported to have avalanched on Monday night to size 2.5.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Storm Slabs

Isolated soft slabs can be found in the Alpine and exposed areas of Treeline. The new storm snow overlies a previous facetted (sugary snow) interface, which might take some time to bond. Expect avalanche activity to peak on Friday.

  • If triggered the storm slabs may step down to deeper layers resulting in large avalanches.
  • Watch for signs of instability such as whumpfing, or cracking.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 3