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Avalanche Forecast

Archived

Jan 30th, 2026–Jan 31st, 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 overlying surface hoar on a hard bed surface could lead to surprising reactivity.
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-triggering slab avalanches in specific areas remains possible.

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

Snowpack Summary

15 to 30 cm of wind-blown new snow has accumulated in the region since January 26, heavily favouring White Pass.

It buried 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 will certainly promote reactivity where slabs form 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 produce hard but sudden test results. It is a concern where the snowpack transitions from thin to thick in White Pass and remains the primary issue in shallower inland areas with basal depth hoar.

Weather Summary

Friday Night

Cloudy. 2 to 4 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Saturday

Cloudy. 0 to 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Sunday

Cloudy. 0 to 2 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -7 °C.

Monday

Mostly cloudy. 30 km/h south ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
  • Use ridges or ribs to avoid areas of wind-loaded snow.

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.