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Archived

Avalanche Forecast

Dec 10th, 2023–Dec 11th, 2023
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
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
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: East Kakwa, Kakwa, McBride, McGregor, North Rockies, Pine Pass, Renshaw, Robson, Sugarbowl, Tumbler.

Strong winds may have moved snow to unusual terrain features, watch for wind effected snow on mid slope rollovers and gullies

Early season hazards lurk just below the snows surface.

Confidence

Moderate

Avalanche Summary

No avalanches have been reported in the last 3 days. Reactivity is expected to linger in wind affected features.

Please continue to submit MIN reports and support your backcountry community.

Snowpack Summary

Strong winds have likely stripped available snow from south and west facing slopes, redistributing it onto north and east facing terrain features.

A layer of surface hoar can be found around 30-50 cm deep. This is most concerning in wind-loaded features.

A crust with sugary facets beneath it can be found just above the ground. The snowpack is still shallow for this time of year. Average snowpack depths at treeline range from 65 to 90 cm.

Weather Summary

Sunday Night

Cloudy with no snow expected. Westerly winds, 30-40 km/h. Freezing levels drop back to valley bottom.

Monday

A mix of sun and cloud. No snow is expected. Treeline temperatures around -7 °C. Westerly winds, 20-40 km/h.

Tuesday

A mix of sun and cloud. Strong southwest winds return, 70-90 km/h. No snowfall expected. Freezing levels rise to 1000 m, treeline temperatures around -3 °C.

Wednesday

Mostly cloudy with southwest winds 80km/h. 5-10 cm of snow possible. Freezing levels begin around 2000 m, and drop over the day to 1000 m. Treeline temperatures around 0 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Avalanche Problems

Wind Slabs

Small avalanches may step down to deeper weak layers like the buried surface hoar, or even the weak facets at the base of the snowpack in very shallow areas.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2