Avalanche Forecast

Issued: Dec 5th, 2015 8:08AM

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

Avalanche Canada bcorrigan, Avalanche Canada

We have few observations from this region. If you are out in the backcountry, consider sharing your obs to the MIN

Summary

Confidence

Low - Due to the number and quality of field observations

Weather Forecast

A low to the west of Haida Gwaii will spin off small amounts of precipitation and strong SW winds into the forecast region Sunday afternoon and early Monday with a brief break in the weather Monday afternoon.  We can expect 5 to 10 cm through Monday.  Tuesday will see another pulse of moisture bringing  10 to 15cm of precipitation and moderate to strong SW winds at ridge tops.  The freezing level should stay around 350 metres through the forecast period.

Avalanche Summary

No reports of avalanche activity in the forecast region

Snowpack Summary

In general, the early season snowpack is shallow and weak. Developing storm slabs are sitting on a mix of crusts and weak facetted crystals or surface hoar in some parts of the region. The southwest of the region sounds like it has the most snow, and probably the most wind with the new snow. We have some reports of a weak facetted base layer in the north of the region where recent temperatures were quite cold during the arctic outbreak. If you get out into the mountains, please submit your observations using the Mountain Information Network.

Problems

Storm Slabs

An icon showing Storm Slabs
Moderate to strong ridge top winds with precipitation will build stormĀ  and wind slabs.
Use ridges or ribs to avoid pockets of wind loaded snow.>Avoid freshly wind loaded features.>Minimize exposure during periods of heavy loading from new snow, wind.>

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Dec 6th, 2015 2:00PM

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