Avalanche Forecast

Issued: Nov 30th, 2017 4:25PM

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

jfloyer, Avalanche Canada

South Coast.

Watch new snow amounts carefully. If more than 30 cm new snow falls overnight by Friday morning, consider the danger to be HIGH.

Summary

Confidence

Moderate - Intensity of incoming weather systems is uncertain on Friday

Weather Forecast

Friday: Approximately 25 cm new snow with freezing levels around 1000 m. Strong southwesterly winds.Saturday: Approximately 10 cm new snow with freezing levels around 900 m. Moderate southerly winds.Sunday: Dry with some sunny breaks. Light northwesterly winds.

Avalanche Summary

Expect human triggered and natural avalanches to occur in steep, wind-affected terrain at higher elevations.

Snowpack Summary

40-60 cm of new snow now overlies a crust at treeline elevations. Indications are the new snow has generally bonded well at elevations below 1500 m. Higher up things are uncertain - we basically have no reports. Travel in many places is rugged, with many open creeks, alder and other early season hazards, although things should be improving with recent new snow. Expect snow depths of around 20 cm at 800 m and around 140 cm at 1200 m.

Problems

Storm Slabs

Recent snow and wind will likely promote slab avalanche conditions in steep and/or exposed terrain.

Avoid steep convex slopes.Use conservative route selection, choose moderate angled and supported terrain with low consequence.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Very Likely

Expected Size

1 - 2

Valid until: Dec 1st, 2017 2:00PM