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Avalanche Forecast

Dec 21st, 2023–Dec 22nd, 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
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
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: Babine, Hudson Bay, Kispiox, Microwave-Sinclair, North Bulkley, Northwest Inland, South Bulkley, Telkwa.

Wind slabs may have formed at higher elevations, approach ridgelines and mid slopes rollovers with caution.

Confidence

Moderate

Avalanche Summary

There is no new avalanche activity to report.

If you do go into the backcountry, consider submitting a Mountain Information Network report.

Snowpack Summary

10-25 cm of new snow has fallen over previously wind-affected surfaces at higher elevations.

Two different surface hoar layers have been reported in the upper snowpack and appear to be most prominent at treeline and below. Snowpack depth at treeline is 50 to 100 cm.

Weather Summary

Thursday Night

Cloudy with 5-10 cm of snow, southerly winds 70-100 km/h. Freezing levels remain above 1000 m until morning.

Friday

Mostly cloudy with 2-5 cm of snow, southwest winds 30-50 km/h, treeline high temperature -1 °C, freezing levels fall from 700 m to valley bottom by afternoon.

Saturday

Increasing cloud with a chance of flurries, and southerly winds 50-60 km/h. Treeline temperatures -4 °C, freezing level at valley bottom.

Sunday

Cloudy with light snowfall. Freezing levels rise to 1500 m, treeline temperatures around -1 °C. Strong southerly winds, 60-100 km/h.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to the wind, once it starts to blow fresh sensitive wind slabs are likely to form.
  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

Avalanche Problems

Wind Slabs

Fresh wind slabs formed on Thursday are likely still reactive to human triggers.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

A layer of buried surface hoar can be found 30-50 cm below the snow surface. It is reported to be deeper and more reactive in the western part of the region.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2.5