Avalanche Forecast
Issued: Jan 24th, 2017 5:08PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Persistent Slabs.
brian webster,
Avalanche Canada
Summary
Weather Forecast
Mixed sun and cloud with no snow forecast through Thursday. Winds will be light from the north on Wednesday. Freezing levels will be near the surface.
Snowpack Summary
Below 1900 metres the midpack is weak and facetted. Above this elevation the snowpack is more settled. In the alpine some isolated windslabs persist from last weeks SW winds. Snowpack tests in Emerald Lake area found isolated areas of surface hoar below last weeks storm snow. Where found, this surface hoar was producing easy shears.
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Avalanche Summary
Avalanche control in Yoho Park on Monday produced numerous size 2 and 2.5 avalanches (Mt Dennis). One size 3 was triggered on Mt Bosworth. No fresh natural avalanches in this area have been observed in past 48 hours
Confidence
Problems
Storm Slabs
Last weeks storm snow has settled into a 20-40 cm slab. This slab is starting to settle out, but snowpit tests show this layer to be reactive in some locations, particularly around treeline where surface hoar has been found.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Various moderate to hard shears have been identified in the mid-pack. Although hard to trigger, if you find the sweet spot there is potential for larger avalanches.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 25th, 2017 4:00PM
