Avalanche Forecast

Issued: Feb 2nd, 2019 4:32PM

The alpine rating is considerable, 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 treeline and in the alpine are the main concern. Expect the temperature to fall as cold air infiltrates the region from the north.

Summary

Confidence

High - The weather pattern is stable

Weather Forecast

SATURDAY Night: Mainly cloudy, light to moderate southwest wind, alpine temperature -12 C.SUNDAY: Mainly cloudy with scattered flurries, accumulation 5 cm, moderate north east wind, alpine temperature -15 C.MONDAY: Mix of sun and cloud, light northeast wind, alpine temperature -18 C.TUESDAY: Mix of sun and cloud, light northeast wind, alpine temperature -15 C

Avalanche Summary

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 combined with with strong southwesterly winds sits on a crust on all aspects except north, wind-affected surfaces in the alpine 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

New snow falling Thursday and Friday with strong southwest wind has promoted windslab development in lee terrain.

Stay alert as conditions change with elevation.Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Feb 3rd, 2019 2:00PM