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Avalanche Forecast

Archived

Jan 31st, 2026–Feb 1st, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.

Regions

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

Wind slabs are getting more stubborn to trigger, but remain a concern on lee slopes.
A persistent slab problem lingers in thin snowpack areas.

Confidence

High

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.

Avalanche Summary

No new avalanches have been reported.

With the recent wind and snow, we expect human-triggered slab avalanches in specific areas remain possible. Natural avalanches are unlikely at this time.

Observations are still limited, so be sure to post yours to the MIN if you get out!

Snowpack Summary

15- 30 cm of snow has accumulated in the region since Jan 26, heavily favouring White Pass. Recent strong winds have created widespread wind effect at ridgetops.

The new snow covered old wind-affected surfaces in most areas, but also a crust (up to 10 cm thick) below 1300 m and on south aspects. Surface hoar is preserved in sheltered features at all elevations and could promote reactivity where slabs have formed over it. Farther inland, there likely isn't enough new snow for this.

A weak layer of facets, buried 70–200 cm deep, continues to react in tests. It remains a concern where the snowpack transitions from thin to thick in White Pass and is the primary issue in shallower inland areas with basal depth hoar.

Weather Summary

Saturday Night

Cloudy. 0 to 3 cm of snow. 20 km/h southeast ridgetop wind. Treeline temperature -5 °C.

Sunday

Cloudy. 0 to 2 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -4 °C.

Monday

Mostly cloudy. 0 to 2 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -6 °C.

Tuesday

Mostly cloudy. 2 to 5 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.
  • Be careful as you transition into wind-affected terrain.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.