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Avalanche Forecast

Archived

Dec 13th, 2025–Dec 14th, 2025

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

Regions

Glacier.

Rising temperatures + strong wind + new snow = excellent slab building conditions.

Be prepared for rising avalanche danger throughout the day tomorrow.

Confidence

Moderate

Avalanche Summary

The natural avalanche cycle has slowed, but human triggering still remains likely especially in wind prone areas.

Over the past few days there were 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

Up to 25cm of snow fell in the last 2 days. 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 150cm 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

A vigorous series of storms are headed our way. Expect extreme winds in the next couple days, and a heavy, warm storm on Monday.

Tonight Mainly cloudy. Low -2°C. Winds SW 30-60km/hr. FZL (freezing level) 1500m.

Sun 16cm. High -2°C. SW winds 30 km/hr gusting to 65km/hr. FZL 1600m.

Mon 35cm. High -1°C. SW winds 30km/hr gusting to 95km/hr. FZL 1800m.

Tues 18cm. High -7°C. Wind SW 20km/hr gusting to 75km/hr. FZL 1300m

Terrain and Travel Advice

  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep 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.