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Avalanche Forecast

Archived

Feb 2nd, 2026–Feb 3rd, 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 and human triggered avalanches likely.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.

Regions

Glacier.

Conservative terrain choices are the best way to manage the current avalanche problem.

Human triggering remains likely.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

Human triggered avalanches continue to occur failing on the late Jan surface hoar. On Monday a field team was able to trigger several size 1 slab avalanches at and below treeline.

Regionally there have been numerous natural, skier and remotely triggered avalanches also failing on the surface hoar layer.

Snowpack Summary

The recent snow has settled into a cohesive 30cm slab over 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

A few flurries will bring minimal new snow, a spike in freezing level (FZL) expected later this week.

Tonight: Flurries trace new snow. Alpine low -5°C. Moderate SW wind. (FZL) 1400m.

Tues: Sun & cloud. High 0°C. Moderate SW wind. FZL 1800m. Weak inversion.

Wed: Sun & cloud. Low -2°C, high 3°C. Moderate SW wind. FZL 1800m. Weak inversion.

Thurs: Sun & cloud. Low -1°C, high 3°C. Light gusting moderate SW wind. FZL 2800m.

Terrain and Travel Advice

  • It's a good day to make conservative terrain choices.
  • Avoid areas where the snow feels stiff and/or slabby.

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.