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Avalanche Forecast

Archived

Nov 19th, 2025–Nov 20th, 2025

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Early Season
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Early Season
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Early Season

Regions

Glacier.

Challenging ski conditions at lower elevations with thin coverage and a crust of variable thickness.

Early season hazards, such as shallowly buried rocks and trees, are the primary concern right now.

Confidence

Moderate

Avalanche Summary

No new avalanches observed over the last five days.

Late last week, several avalanches up to size 3.0 were observed in the highway corridor and in the Connaught area. Some of these avalanches ran to ground in lower elevation runout zones.

Snowpack Summary

A crust of varying thickness and strength exists up to 2200m. Above this elevation, dry snow can still be found but isolated pockets of windslab may still be lingering near ridgetop in the Alpine.

Weather Summary

Storm arriving in Rogers Pass Friday PM with 40-60 cm of snow accumulation forecasted by Monday PM. Storm freezing level (FZL) around 1700m.

Tonight Cloudy with clear periods. No precipitation. Alpine low -4 °C. Wind SE10 km/h. FZL 1400m

Thurs Cloudy with sunny periods. No precip. Alpine high -3. FZL 1700m. Wind SW 15 km/h

Fri Flurries. 8 cm snow. FZL 1500m. Wind SW 30 km/h

Sat Snow. Up to 14 cm. Wind SW 20-40. FZL 1600m

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.

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.