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Avalanche Forecast

Archived

Dec 15th, 2025–Dec 16th, 2025

Alpine
Natural and human triggered avalanches likely.
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.

Extreme wind on Monday night will be followed by continued snowfall.

Expect storm slabs to remain reactive.

Confidence

Moderate

Snowpack Summary

Mondays storm arrived warm with freezing levels dropping by Tuesday morning.

Approximately 150cm of snow has fallen over the past week with strong to extreme wind. This recent snow fall has settled significantly but storm slabs exist on all aspects. Watch for increased reactivity in terrain exposed to wind.

Areas sheltered from the wind at treeline and below have surface hoar buried around 140cm deep.

Weather Summary

Extreme wind, Cooling temps and continued snowfall.

Tonight Fluries 11cm. Low -9°C. Winds SW 30-gusting 115km/hr. FZL (freezing level) 800m.

Tues Periods of snow, 11cm. High -6°C. SW winds 15km/hr gusting to 55 km/hr. FZL 1200m.

Wed Periods of now, 17cm. High -4°C. Wind SW 20km/hr gusting to 95km/hr. FZL 1300m.

Thurs Periods of snow, 15cm. Wind W 15 gusting 145. FZL 900m.

Terrain and Travel Advice

  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • 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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.