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Archived

Avalanche Forecast

Dec 31st, 2020–Jan 1st, 2021
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
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
4: High
The avalanche danger rating at treeline will be high
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Glacier.

Happy New Year, and thanks for all the great MIN reports!

Days are short, give yourself extra time for your objective. We were VERY lucky yesterday to extricate a hurt visitor JUST before dark!

Weather Forecast

Today is the calm before the next storm. A transient ridge of high pressure will cross the province bringing a somewhat dry New Years' eve before the next in a series of storms arrives just before the new year.

Today: Trace of new snow, light SW wind, and the FL hovering around 1100m

Tomorrow: 11cm, FL rising to 1400m, Mod SW winds

Saturday: 25cm!

Snowpack Summary

Approximately 20-30cm of new snow has fallen over the last few days, burying another surface hoar layer (Dec 25th). Reports that the new snow is relatively right side up, with isolated storm slabs that are stubborn to trigger. This interface will become touchy in the coming days as it gets overloaded with storm snow and warm temperatures.

Avalanche Summary

No new avalanches have been observed in the highway corridor, or reported from the back country. Sluffing is possible in steep unsupported terrain features. Isolated soft slabs may be found in exposed areas at treeline and in the alpine.

Confidence

Avalanche Problems

Storm Slabs

Approx 20-30cm of new snow has fallen over the last few days, burying another surface hoar layer (Dec 25th) in specific locations. Storm slabs may have already developed in isolated areas in the alpine and exposed areas of upper TL.

  • Watch for stiffer feeling snow. Avoid areas that appear wind loaded.
  • Use safe ski cutting techniques to enter your line.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

The early december surface hoar layers are now buried ~1m deep. The avalanche problem is now a classic low likelihood, high consequence scenario. Steep solar aspects and thin snowpack areas is the most likely place to trigger this layer.

  • Be wary of large open slopes that did not previously avalanche.
  • Carefully evaluate terrain features by digging and testing on adjacent, safe slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 2 - 3