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Avalanche Forecast

Archived

Dec 27th, 2025–Dec 28th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Glacier.

Triggering storm slab avalanches in loaded lee areas remains possible.

Enter your line cautiously, avoiding areas where the surface has been stiffened by the wind.

Confidence

Moderate

  • Uncertainty is due to limitations in the field data.

Avalanche Summary

There was a cycle of natural avalanche activity in steep open terrain Thursday night and through the day Friday. These were mostly size 1.5-2.5, with a few size 3s from Mt. Tupper and Mt. MacDonald.

Snowpack Summary

Another 20-30cms of low density snow fell Friday building fresh storm slabs, especially in the alpine and open tree line areas where new snow has been redistributed by SW winds.

The mid and lower snowpack are generally strong. There are a couple of buried crusts at Treeline and and below, but these have not shown signs of reactivity in our area recently.

Weather Summary

A ridge of high pressure is creating stable weather in our area for the next few days.

Tonight Clear skies. Alpine Low -19 °C. Ridge wind light West.

Sun Mainly cloudy, isolated flurries. High -10 °C. Light SW wind.

Mon Mainly cloudy, isolated flurries. Low -9 °C, High -4 °C. Light SW wind.

Tue Sunny periods. Low -5 °C, High -4 °C. Light ridge winds.

Terrain and Travel Advice

  • If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
  • Avoid areas where the snow feels stiff and/or slabby.

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.