Avalanche Forecast

Issued: Feb 3rd, 2019 4:27PM

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

mbender, Avalanche Canada

Sea To Sky.

Windslabs at upper elevations are the main concern. The cold air will remain for a few more days.

Summary

Confidence

High - The weather pattern is stable

Weather Forecast

SUNDAY Night: Mainly cloudy with scattered flurries, moderate northeast wind, alpine temperature -20 C MONDAY: Mainly sunny, light to moderate northeast wind, alpine temperature -10 C with an alpine temperature inversionTUESDAY: Mix of sun and cloud, light northeast wind, alpine temperature -7 C with an alpine temperature inversionWEDNESDAY: Mix of sun and cloud, light northwest wind, alpine temperature -10 C.

Avalanche Summary

On Saturday, several explosives triggered wind slab avalanches were reported to size 2 on northerly aspects in the alpine. Numerous explosive triggered size 1.5-2 storm slab avalanches were reported on Friday in the alpine and treeline.

Snowpack Summary

40-50 cm of new snow Thursday and Friday has been redistributed by strong southwesterly winds and sits on a crust on all aspects except north and possibly a mixture of weak feathery surface hoar or sugary facets in sheltered terrain at treeline and below. The remainder of the snowpack is generally well-settled and strong.

Problems

Wind Slabs

Expect to find wind slabs on a variety of aspects as winds shift from predominantly southwesterly to northerly.

Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Be cautious as you transition into wind affected terrain.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Feb 4th, 2019 2:00PM