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Avalanche Forecast

Archived

Dec 8th, 2025–Dec 9th, 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 and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
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.

Regions

Glacier.

The storm snow needs time to bond.

Slopes that have not avalanched naturally overnight will be ripe for human triggering.

Confidence

High

Snowpack Summary

The new storm snow (around 30cm) has not yet bonded to the early season snowpack below. In sheltered tree line areas surface hoar has been found which will now be buried around 80cm deep and could give a deeper than expected failure layer.

Weather Summary

An intense storm arrives Monday night, a brief reprieve on Tuesday before another round of snow and wind on Wednesday.

Tonight Heavy now 25cm, strong W winds, FZL (freezing level) 1200m.

Tues Flurries up to 6cm, moderate W winds gusting strong, alpine high -7°C, FZL 1200m.

Wed Heavy snow 30cm, strong W winds, alpine high -3°C FZL 1500m.

Thurs Flurries, light W winds, alpine high -7°C, FZL 1000m.

Terrain and Travel Advice

  • Give the new snow several days to settle and stabilize before pushing into bigger terrain.
  • 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.