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Avalanche Forecast

Archived

Feb 6th, 2026–Feb 7th, 2026

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

Regions

Flathead, Lizard, Moyie, St. Mary.

Avalanches may remain triggerable on a weak layer in wind-loaded terrain features at upper elevations that do not have a surface crust.

Confidence

Moderate

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

Avalanche Summary

A natural avalanche cycle occurred last weekend with numerous slab avalanches up to size 2. All of these appeared to fail on the late-January surface hoar/crust/facet layer outlined in the snowpack summary.

While avalanche activity has largely decreased since last weekend, several small (size 1 to 1.5) human-triggered avalanches have occurred throughout the week on a variety of aspects at treeline and above.

Snowpack Summary

Surfaces are a mix of refrozen crust and moist snow.

10 to 30 cm of snow sits over the late-January weak layer. This layer consists of a melt-freeze crust of variable thickness, with a possibility of surface hoar on top and faceted snow above and/or below the crust. This layer remains a concern at upper elevations that lack a robust crust on the surface.

The mid and lower snowpack is generally well settled, with no significant concerns.

Weather Summary

Friday Night
Mostly clear skies. 40 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level dropping 3000 to 1500 m.

Saturday
Mostly cloudy. 1 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1900 m.

Sunday
Mostly cloudy. 5 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1900 m.

Monday
Mostly cloudy. 10 to 15 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -5 °C. Freezing level 1600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Wind slabs are isolated, but may remain reactive.

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.