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Archived

Avalanche Forecast

Feb 2nd, 2025–Feb 3rd, 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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Tutshi, Wheaton, White Pass East, White Pass West, Yukon.

If you venture out in the cold, even a small issue can become a big problem.

Avalanches are of greatest concern in areas with a transition from shallow to deep snow.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported this week.

There have been no recent reports of persistent slab avalanches, but uncertainty remains. Snowpack test results and whumpfing suggest it may still be triggerable in areas that are shallow and rocky.

Snowpack Summary

Between 15 to 25 cm of old storm snow continues to be actively redistributed via moderate northerly winds. Watch for reverse loaded slopes hiding pockets of hard windslab.

A weak layer of facets and a crust from early December is buried 50 to 100 cm deep. This layer exists on all aspects up to around 1700 m.

At the highway elevation the snow is 120 cm deep and in the alpine there is more than 200 cm.

Weather Summary

Sunday Night

Cloudy with flurries. 1-2 cm. 50 to 70 km/h north ridgetop wind. Treeline temperature -20 °C.

Monday

Mostly sunny. 50 to 70 km/h north ridgetop wind. Treeline temperature -17 °C.

Tuesday

Mostly clear. 40 to 60 km/h north ridgetop wind. Treeline temperature -10 °C.

Wednesday

Mostly clear. 15 to 25 km/h variable ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded terrain features.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Avalanche Problems

Wind Slabs

New and reactive wind slabs are building on non-typical areas with north outflow winds.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

The early December weak layer may still be triggered in shallow, thin-to-thick areas, or with large loads like a cornice or avalanche.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3.5