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Archived

Avalanche Forecast

Nov 25th, 2022–Nov 26th, 2022
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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

Regions: Elkford East.

Stubborn and lingering wind slabs still exist in wind-affected areas.

Early season conditions and a variable snowpack are providing plenty of hazards like tree stumps, creeks, and rocks.

Confidence

Low

Avalanche Summary

In the last 48 hours, there have been several size 1 to 2 avalanches that triggered naturally and with the use of ski cutting and explosives. These were in the alpine and on various aspects. These have all been reported in the Fernie area.

There have been few people reporting in the MIN, and therefore our observations of the backcountry are minimal. It is suspected that similar natural avalanches have occurred in our region due to similar wind conditions.

Snowpack Summary

Lingering and stubborn wind slabs exist at upper elevations. A mixture of surface facets, surface hoar, and sun crust can be found on the surface.

Below the surface, cold temperatures have weakened and faceted the snowpack. A basal rain crust sits near the ground.

Total snowpack depths at the treeline are 40-70 cm and in the alpine 60-120 cm. Below treeline remains below the threshold.

Weather Summary

Friday Night

Cloudy with clearing periods, 5 cm accumulation, west ridge winds light to 20 km/h gusting to 45, alpine low -3 C freezing level at valley bottom with a weak temperature inversion.

Saturday

A mix of sun and cloud, trace accumulation, ridge winds southwest 25 to 35 km/h gusting to 60km/h, alpine temperatures to -6 to -3 C freezing level to 800m in some places of the south.

Sunday

A mix of sun and cloud, Cloudy, 10 cm accumulation, ridge winds 15 to 30 km/h west and gusting to 70 km/h, alpine temperatures -6 to -10 C with freezing level to near valley bottom.

Monday

Mainly cloudy, trace to 5 cm accumulation, northeast ridge winds 15 - 25 km/h, alpine temperature of -12 C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make observations and assess conditions continually as you travel.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.

Avalanche Problems

Wind Slabs

Wind slabs may be found in leeward terrain just below ridgecrests.

Wind slab release may trigger weaker layers lower down in the snowpack

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2