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Archived

Avalanche Forecast

Jan 24th, 2025–Jan 25th, 2025
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
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.

Watch for reactive slabs in wind-loaded areas where the snow is deeper and stiffer.

Uncertainty remains regarding weak layers deep in the snowpack.

Confidence

Moderate

Avalanche Summary

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

Snowpack Summary

Up to 30 cm of new snow has accumulated this week, with lower amounts in inland areas. Westerly wind has redistributed this new snow into deeper deposits in leeward terrain. A layer of weak surface hoar crystals may exist beneath the new snow in wind-sheltered terrain.

Deeper in the snowpack, approximately 100 to 200 cm below the surface, there is a crust with faceted crystals and/or surface hoar on top that was buried in early December.

The lower snowpack is generally well-settled and unconcerning.

Weather Summary

Friday Night

Partly cloudy. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -5 °C.

Saturday

A mix of sun and cloud. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -5 °C. Temperature inversion starting.

Sunday

Sunny. 20 to 40 km/h northwest ridgetop wind. Treeline temperature 0 °C. Temperature inversion.

Monday

A mix of sun and increasing cloud. 20 to 40 km/h west ridgetop wind. Treeline temperature 0 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Give the new snow several days to settle and stabilize before pushing into bigger terrain.
  • 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.

Avalanche Problems

Wind Slabs

Expect to find stiffer and deeper deposits of snow in wind-loaded areas. Reactive slabs will continue to form as wind redistributes the recent snow.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

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: Unlikely

Expected Size: 2 - 3