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Archived

Avalanche Forecast

Nov 17th, 2016–Nov 18th, 2016
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Glacier.

Winter's Back! However early season hazards like rocks, trees and open creeks are prevalent below 1900m. There's still alot of winter left, ride conservatively out there!

Weather Forecast

Expect mainly cloudy skies today, with minor flurries, light winds at ridge-top, and freezing levels remaining in the valley bottom. Tonight we can expect 2-5 cms and a similar day on Friday.  Another storm is lined up to arrive Saturday possibly bringing 20-30 cms and rising freezing levels through the weekend.

Snowpack Summary

30-40cm of new snow covers a thick supportive crust (Nov 13) with a moist near-isothermal snowpack below. Moderate winds have transported this new snow and formed soft slabs in lee features at ridge top. Below 1900m, snow depths are less than 50cm with many early season hazards (rocks, trees & open creeks!) lurking at or just below the surface.

Avalanche Summary

Natural avalanche activity has decreased as temperatures drop yesterday. However with the clearing skies field teams observed avalanches up to size 2 from Mt Macdonald and Mt Cheops that happened Tuesday evening.

Confidence

Avalanche Problems

Storm Slabs

Recent snowfall & steady mod winds over the last couple of days have formed storm slabs at alpine and treeline elevations. These sit on a crust and may be easier to trigger where the slabs have stiffened due to wind.
Use caution in lee areas. Recent wind loading have created wind slabs.Carefully evaluate terrain features by digging and testing on adjacent, safe slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2