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Avalanche Forecast

Archived

Dec 10th, 2022–Dec 11th, 2022

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Northwest Inland, Kispiox, Microwave-Sinclair, Ningunsaw, South Bulkley, South Bulkley, Telkwa.

Watch for isolated terrain features with pockets of wind slab that remain possible for human triggering.

A small avalanche in extreme terrain can have serious consequences.

Confidence

High

Avalanche Summary

No recent avalanches have been reported in the region.

Thank you for the MIN reports! They are extremely helpful to us! If you head into the backcountry please submit a MIN report!

Snowpack Summary

The 10 - 15 cm of new snow from the last few days has been redistributed into firm wind slabs at higher elevations. In isolated areas at treeline and below new snow is buried a layer of small surface hoar and facets. This layer has not shown recent signs of instability.

A faceting crust from mid-November can be found down 60 cm within the midpack and is reportedly bonding well.

In general the snowpack is highly wind effected which has resulted in a wide variation in snowpack depths. Depths at treeline range from 50 to 125cm.

Weather Summary

Saturday Night

Flurries bringing trace amounts of new snow. Light easterly winds and a low of -13 at 1500m.

Sunday

Flurries in the morning bringing up to a few centimeters of new snow and then clearing mid day. Light to moderate easterly winds with a temperature inversion. High of -13 at 1500m.

Monday

Mix of sun and cloud with wind shifting to light southwest by the evening. Temperature inversion continues with a high of -5 at 1500m.

Tuesday

A mix of sun and cloud with the possibility of light flurries bringing trace amounts of new snow. Light to moderate southwest winds. Temperature inversion continues with a high of -4 at 1500m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.
  • Carefully evaluate steep lines for wind slabs.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.