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Archived

Avalanche Forecast

Nov 28th, 2022–Nov 29th, 2022
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Assess conditions as you travel - any fresh snow is likely hiding early-season hazards.

Confidence

Low

Avalanche Summary

No new avalanches have been observed or reported in the region, however, observations are limited at this time of year. If you head into the backcountry consider submitting a MIN report.

Snowpack Summary

At the highest elevations, recent wind-affected snow covers a melt-freeze crust and moist upper snowpack.

Snowpack depths at upper elevations grow to 80 cm, where snow begins to cover surface roughness. The snow-dirt line is found around 1200 m, and most solar slopes and below treeline are below the threshold for avalanches.

Weather Summary

Monday night

Clear and cold with increasing clouds. Light to moderate northeast wind, treeline low temperatures -10 C.

Tuesday

Cold. Flurries start in the afternoon with substantial accumulations beginning overnight. Increasing southwest wind, treeline high temperature -5 C.

Wednesday

Winter storm beginning late Tuesday with precipitation likely falling as snow at most elevations. 20-50 mm by morning and another 15 mm through the day, South wind gusting above 90 k/h. Treeline high -2, freezing level staying below 500 m.

Thursday

Cooling and clearing. Light northwest wind, treeling high temperature -4 C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.
  • Exercise caution on steep, unsupported slopes.

Avalanche Problems

Wind Slabs

At the highest elevations, you may find stubborn hard slabs where recent winds loaded snow. As wind increases and snowfall accumulates late Tuesday, new slabs will first build in wind-loaded areas before becoming more widespread.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 1.5