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Avalanche Forecast

Archived

Dec 29th, 2025–Dec 30th, 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.

Ski quality is excellent but pockets of wind slab exist in open areas exposed to the wind. Watch out for cross loaded features and avoid areas where the surface snow has been stiffened by the wind.

Confidence

High

  • Confidence is due to a stable weather pattern with little change expected.

Avalanche Summary

There is evidence of reactive wind slabs in exposed areas in the alpine and at treeline. Although the natural avalanche cycle has slowed, human triggered avalanches are still possible. A skier was involved with and avalanche on Avalanche crest on Sunday (see MIN). Thanks for reporting!

There was a cycle of natural avalanche activity in steep open terrain Thursday night & through the day Friday. 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 with moderate wind building wind slabs, especially in the alpine and open tree line areas exposed to the SW wind.

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

Weather Summary

No Precipitation in the forecast but temperatures have moderated and wind will be light.

Tonight Clear periods. Alpine Low -8°C. Ridge wind SW-15km/h.

Tues Cloudy with sunny periods. High -1°C. Wind SW-25km/h. Freezing level (FZL) 1400m

Wed A mix of sun and cloud. High -2 °C. Wind SW-20km/h. FZL1500m.

Thurs A mix of sun and cloud. High 0°C. Wind SW-15km/h. FZL 1800m.

Terrain and Travel Advice

  • Pay attention to isolated wind affected features in the alpine, as well as cross-loaded features at treeline.
  • Avoid areas where the snow feels stiff and/or slabby.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.