Avalanche Forecast

Issued: Apr 14th, 2017 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Cornices.

Avalanche Canada mbender, Avalanche Canada

The weekend will start up with a period of stable weather. Expect the avalanche danger to rise as the temperature rises through the day.

Summary

Confidence

Low - Due to the number of field observations

Weather Forecast

SATURDAY: Cloudy with sunny periods / Light south wind / Alpine temperature 0 / Freezing level 1300mSUNDAY: Mix of sun and cloud / Light east wind / Alpine temperature 0 / Freezing level 1300mSUNDAY: Mix of sun and cloud / Light northeast wind / Alpine temperature 2 / Freezing level 1500m

Avalanche Summary

There have been no recent reports of avalanche activity in the south of the region. That being said there is little to no information being passed on from the region recently. Exposure to large overhanging cornices remains a significant concern. As the sun comes out over the weekend I would expect see cornices weaken and loose snow avalanches run from steep sun exposed slopes during the warmest parts of the day.

Snowpack Summary

New snow at upper elevations from last week has been redistributed east and southeast winds. This may be sitting on a variety of old surfaces including hard wind crusts in exposed terrain and sun crusts on solar aspects. At the tree line elevation, warming and re freezing earlier in the week has likely has created melt freeze crusts. Below tree line the surface snow is likely a mix of crusts at the upper end of the elevation band to moist or wet snow throughout the entire thickness of the snowpack at the lower portions of the elevation band.

Problems

Cornices

An icon showing Cornices
Large cornices may become weak with daytime warming and have the potential to trigger slabs on the slopes below.
Give cornices a wide berth when traveling on ridges.Even small cornice falls may trigger larger avalanches.

Aspects: North, North East, East, South East.

Elevations: Alpine.

Likelihood

Possible

Expected Size

2 - 3

Valid until: Apr 15th, 2017 2:00PM

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