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Avalanche Forecast

Mar 6th, 2024–Mar 7th, 2024
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Look for signs of instability and assess for wind slabs. Small avalanches could step down to weak layers deeper in the snowpack.

Confidence

Moderate

Avalanche Summary

Only a few natural size 1.5 wind slab avalanches have been reported over the past few days.

Over the past week in the neighbouring region, many natural and skier triggered persistent slab avalanches occurred on the facets above the early-February melt-freeze crust described in the Snowpack Summary.

Snowpack Summary

The wind has blown from a variety of directions over the past few days. Wind effect could be found on all aspects.

30 to 50 cm below the snow surface you may find surface hoar in wind-sheltered terrain, weak facets, or a hard melt-freeze crust on south and west-facing slopes.

A thick and hard widespread crust that formed in early February is buried about 60 to 80 cm deep. This crust may have a layer of facets above it.

The eastern portion of this region is much shallower with a highly variable and wind affected snowpack.

Weather Summary

Wednesday Night

Cloudy with clear breaks. 25 to 40 km/h west and northwest alpine wind. Treeline temperature -16°C.

Thursday

Mostly cloudy with 1 to 3 cm snow. 25 to 50 km/h southwest alpine wind. Treeline temperature -7°C.

Friday

Cloudy with 5 to 10 cm of snow expected. 30 to 50 km/h south alpine wind. Treeline temperature -2°C. Freezing level 1500 m.

Saturday

Cloudy with 5 to 10 cm of new snow expected. 30 to 50 km/h south alpine wind. Treeline temperature -1°C. Freezing level 1600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Conservative terrain selection is critical, choose only well supported, low consequence lines.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Remote triggering is a concern, watch out for adjacent and overhead slopes.

Avalanche Problems

Wind Slabs

Recent new snow has been redistributed by wind blowing from a variety of directions.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

A weak layer of facets and/or surface hoar may rest above a hard-melt freeze crust that formed early February. This layer remains in the depth for human triggering.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1.5 - 2.5