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Avalanche Forecast

Archived

Dec 14th, 2025–Dec 15th, 2025

Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural and human triggered avalanches likely.
Alpine
Natural and human triggered avalanches likely.
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.

Heavy snowfall, extreme winds, and warm temperatures will cause a widespread avalanche cycle on Monday.

Highway 1 through Rogers Pass will be closed early Monday Morning.

Updates on reopening will be available on DriveBC.ca

Confidence

High

Avalanche Summary

A widespread natural avalanche cycle is expected in on Monday.

Over the past week, there has been numerous large natural & artificially triggered avalanches running on storm snow interfaces. These ranged in size from 1.0 to 3.5 and some were running to valley bottom.

Snowpack Summary

50cm of snow over the weekend. At lower elevations, this new snow sits on a thin temperature crust up to 1700m.

We've had a LOT of snow in the past week! About 170cm of snow has fallen with periods of strong to extreme southwesterly wind.

Areas sheltered from the wind at treeline and below have a layer of surface hoar buried around 120cm deep.

Weather Summary

Expect extreme wind on Monday with mild temperatures. Moderate - heavy precipitation throughout the forecast period.

Tonight Snow, 16cm. Low -2°C. Winds SW 30-50km/hr. FZL (freezing level) 1600m.

Mon Heavy snowfall, 32cm. High -1°C. SW winds 30km/hr gusting to 110 km/hr. FZL 1800m.

Tues Snow, 14cm. High -7°C. Wind SW 20km/hr gusting to 70km/hr. FZL 900m.

Wed Snow, 20cm. Wind W 15 gusting 115. FZL 900m.

Terrain and Travel Advice

  • Only the most simple non-avalanche terrain with no overhead hazard is appropriate at this time.
  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.

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.