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Avalanche Forecast

Archived

Feb 4th, 2026–Feb 5th, 2026

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

Avalanche hazard will remain high with forecast warm temperatures and sunshine.

Expect increased natural and human triggered avalanche activity.

Confidence

Moderate

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

Avalanche Summary

As field teams and visitors tread lightly in the park, rider triggering continues on the late January surface hoar. Avalanche have been more prevalent below treeline 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 very likely on Thursday and Friday. Warm temperatures also increase the likelihood of rider triggering.

Snowpack Summary

Forecast significant warming will turn the snow surface heavy and wet increasing slab cohesion. Roughly 30cm beneath the surface is the late Jan weak layer of surface hoar, facets and a crust. This layer is found on all aspects and elevations with largest surface hoar (up to 40mm) in sheltered areas below treeline. The crust is firmer on solar aspects.

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

Weather Summary

Unseasonal high temperatures and strong solar inputs Thursday and Friday. A return to winter on Saturday with snow and falling freezing levels.

Tonight: Cloudy. Alp low 1°C. Wind SW 30km/h. (FZL) 1600m, weak inversion

Thurs: Sun & cloud. High 6°C. Wind SW 10-30 km/h. FZL 3000m.

Fri: Sun & cloud. High 6°C. Wind SW 20 km/h. FZL 3000m.

Sat: Flurries, 10-15 cm. High -1°C. Wind SW 20-40 km/h. FZL 1600m.

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.