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Avalanche Forecast

Archived

Feb 5th, 2026–Feb 6th, 2026

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.

Regions

Glacier.

Expect increased natural and human triggered avalanches as warm air and solar warming.

Spring-like conditions are making for challenging travel.

Confidence

Moderate

  • We are uncertain about how the timing or intensity of solar radiation will affect the snowpack.

Avalanche Summary

A solar triggered, natural cycle was observed on Thursday along the highway corridor, with avalanches up to size 3.0

Human triggering continues on the late January persistent weak layer. Avalanches have been more prevalent below treeline(MIN) and in unsupported terrain. See the MIN in Connaught creek on Tuesday of a rider remote avalanche, size 1.5.

Loose avalanches triggered by sun and warm temperatures are likely on Friday.

Snowpack Summary

Expect variable surface crusts formed by a temperature inversion and clear skies. This crust will break down during the day.

Warm air and solar warming have made the snow surface heavy and wet increasing slab cohesion. ~ 30cm beneath the surface is the late Jan weak layer of surface hoar, facets and a crust. This layer is widespread with largest surface hoar (up to 40mm) in sheltered areas below treeline.

The mid and lower snowpack is generally well settled and strong.

Weather Summary

Unseasonal high temperatures and strong solar warming are forecast for Friday. Winter will return on the weekend with snow and falling freezing levels.

Tonight: Cloudy. Alp low 6°C. Wind SW 30km/h. (FZL) 1600m, weak inversion

Fri: Sun & cloud. High 5°C. Wind SW 25 km/h. FZL 2900m.

Sat: Flurries, 10-15 cm. High 0°C. Wind SW 30-40 km/h. FZL 1500m.

Sun: Cloudy w/flurries. High -3°C. Wind SW 10-30 km/h. FZL 1500m.

Terrain and Travel Advice

  • Avoid exposure to overhead hazards when solar radiation is strong.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Remote triggering is a concern; avoid terrain where triggering overhead slopes is possible.

Problems

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.