Avalanche Forecast

Issued: Nov 29th, 2017 3:24PM

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.

Successive storms will maintain elevated danger through the rest of this week. Pay particular attention in exposed areas where wind has blown the new snow into dense wind slabs.

Summary

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

Thursday: 20-25 cm new snow expected with freezing levels around 1000 m. Strong southwesterly winds.Friday: 10 cm new snow expected with freezing levels around 1000 m. Moderate southwesterly winds.Saturday: 20-25 cm new snow expected with freezing levels around 900 m. Moderate southerly winds.

Avalanche Summary

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

Snowpack Summary

30-40 cm of new snow now overlies a crust. 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. Expect snow depths of around 10 cm at 800 m and around 120 cm at 1200 m.

Problems

Storm Slabs

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

Use caution in lee areas. Recent wind loading has created wind slabs.Use conservative route selection, choose moderate angled and supported terrain with low consequence.Avoid steep convex slopes.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Likely - Very Likely

Expected Size

1 - 2

Valid until: Nov 30th, 2017 2:00PM