Avalanche Forecast

Issued: Nov 18th, 2016 8:05AM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is below threshold. Known problems include Storm Slabs.

Parks Canada ian gale, Parks Canada

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

Summary

Weather Forecast

Expect mainly cloudy skies today, without much precip, ridge top wind coming from the south east 10-20 kph & and freezing level at 1300m. Scattered flurries Saturday will bring 5 cm of new snow and freezing level is expected to rise to 1600m.

Snowpack Summary

35-55cm of new snow covers a thick supportive crust (Nov 13) with a moist near-isothermal snowpack below. Previous 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 with minimal minimal new snow and dropping temperatures. However with the clearing skies field teams observed previous avalanches up to size 2 from Mt Macdonald, Cheops and Jupitor. These avalanches occurred Tues-Wed on steep Northerly aspects and were triggered by the previous strong winds

Confidence

Problems

Storm Slabs

An icon showing Storm Slabs
Recent snowfall & previous mod winds have formed storm slabs at ridgetop and below on specific features. New low density snow sits on top and sluffing can be expected on steeper terrain features.
Use caution in lee areas. Recent wind loading have created wind slabs.Be cautious of sluffing in steep terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Nov 19th, 2016 8:00AM