Archived

Avalanche Forecast

Nov 26th, 2022–Nov 27th, 2022

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

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

Regions: Akamina, Crowsnest North, Crowsnest South, Elkford East, Elkford West, South Rockies.

With new snow and wind expected Sunday avoid exposing yourself to overhead hazards and be extra cautious near ridges where fresh wind slabs are most likely to form.

Confidence

Moderate

Avalanche Summary

There are only a few eyes out in the mountains, but I haven't received recent reports of avalanches. If you do get out riding please consider reporting in the MIN,

Snowpack Summary

Upper Snowpack: Forecast new snow will be redistributed by the wind (aka form windslabs). Below this is a layer of wind hardened or settled snow.

Lower Snowpack: 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.

Monday

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.

Tuesday

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

Be especially cautious as you transition into wind affected terrain.
Avoid terrain traps where the consequence of any avalanche could be serious.

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, South East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2