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Archived

Avalanche Forecast

Dec 30th, 2022–Dec 31st, 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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Babine, East Stikine, Hudson Bay, Kispiox, Microwave-Sinclair, Northwest Inland, Telkwa, West Stikine.

Use extra caution at treeline and below where persistent weak layers have been most reactive. Be aware that wind slabs could step down to deeper layers.

Confidence

Moderate

Avalanche Summary

Over the past few days several reports of natural avalanches up to size 2.5 that likely released in the facet layer produced during the recent period of arctic air. These avalanches have occred at all elevations and on a variety of aspects.

If you are headed out into the backcountry please consider filling out a Mountain information Network report.

Snowpack Summary

Around 30 to 50cm of recent snow has been redistributed into wind slab in exposed terrain at treeline and above. In non-wind effected terrain this recent snow sits on a layer of facets formed during the period of arctic air. Below treeline a thin crust can likely be found at or near the surface.

A surface hoar and facet layer from early December, while spotty, can still be found down around 40 to 60cm.

In General snowpack depths are highly variable throughout the region.

Weather Summary

Friday Night

Cloudy with the possibility of light flurries bringing trace amounts of new snow. Light southerly winds and a low of -8 at 1500m.

Saturday

Cloudy with light flurries bringing trace amounts of new snow. Light westerly winds and a high of -4 at 1500m.

Sunday

Cloudy with the possibility of light flurries bringing trace amounts of new snow. Light southerly winds and a high of -5 at 1500m.

Monday

Cloudy with trace amounts of new snow expected. Moderate to strong south winds and a high of -7 at 1500m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Keep in mind that human triggering potential persists as natural avalanching tapers off.
  • Closely monitor how the new snow is bonding to the old surface.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.

Avalanche Problems

Persistent Slabs

A layer of facets formed during the period of arctic air is now down around 30cm but could be found down as deep as 50cm. This layer has now produced natural avalanches at all elevations. It is likely most reactive at treeline where surface hoar could also exist as part of this layer.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1.5 - 2.5

Wind Slabs

wind has been variable, wind slab could be found on all aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2