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Avalanche Forecast

Archived

Nov 21st, 2025–Nov 22nd, 2025

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

Regions

Glacier.

The hazard is forecast to reach High by Saturday afternoon as 30cm and extreme alpine winds build dangerous conditions.

At lower elevations, continue to use caution—early-season hazards are still hiding just below the surface.

Confidence

Moderate

Avalanche Summary

No new avalanches observed over the last few 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

30-40cm is expected to fall between Friday night and Saturday afternoon. This storm snow sits on a crust of varying thickness and strength up to 2200m.

Early season hazards exist below treeline with a low early season snowpack.

Weather Summary

At last, the storm has arrived—delivering the much-needed precipitation we’ve been waiting for.

Tonight: Snow. 10cm Alpine low -4°C. Wind SW 45km/h. Freezing Level (FZL) 1500m

Sat: Snow. 15-30cm. Alpine high -2°C. Extreme SW Wind @ 75km/h. FZL 1500m.

Sun: Snow. 15-30cm. Alpine high -3°C. Wind SW 40km/h FZL 1600m.

Mon: Snow. 4cm. Alpine high -8°C. Wind SW 35km/hr. FZL 1000m.

Terrain and Travel Advice

  • Avoid lee and cross-loaded slopes in the alpine.
  • Watch for fresh storm slabs building throughout the day.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.