Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Jan 25th, 2025–Jan 26th, 2025
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
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: Howson, Kitimat, Nass, Rupert, Seven Sisters, Shames.

It's uncertain if warm weather will cause weak layers in the snowpack to become reactive.

Take a conservative approach until conditions are clear.

Confidence

Low

Avalanche Summary

Friday: A few small storm slabs were rider-triggered near Shames on a south aspect at treeline.

Thursday: There were many small and large (size 2) storm slabs and dry loose avalanches. Both rider and naturally-triggered.

Snowpack Summary

15 to 30 of settling snow from earlier this week sits on either old wind affected layers or possibly surface hoar in sheltered spots. In exposed areas, soft snow has been redistributed into wind slabs.

100 to 200 cm deep in the snowpack are layers of crust, facets, and possibly surface hoar that were buried in December. Warm temperatures are expected to increase the reactivity of this layer.

The lower snowpack is generally well-settled and unconcerning.

Weather Summary

Saturday Night

Partly cloudy. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -7 °C with a temperature inversion.

Sunday

A mix of sun and clouds. 20 to 30 km/h northwest ridgetop wind. Treeline temperature 0 °C with a temperature inversion.

Monday

A mix of sun and increasing cloud. 30 to 50 km/h west ridgetop wind. Treeline temperature 0 °C with a temperature inversion.

Tuesday

Cloudy with up to 5 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °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.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Be aware of the potential for large avalanches due to buried surface hoar.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.

Avalanche Problems

Persistent Slabs

A widespread crust with surface hoar and/or facets, buried in early December is buried 100 to 200 cm deep. The same layer has been responsible for several large, destructive avalanches in regions to the north.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 2 - 3

Wind Slabs

Expect to find stiffer and deeper deposits of snow in wind-loaded areas.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Wet

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Likely

Expected Size: 1 - 1.5