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Avalanche Forecast

Archived

Dec 3rd, 2022–Dec 4th, 2022

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

After many windy and cold days the best riding is likely in sheltered terrain that is less wind effected and where cold temps have softened the snow surface.

Confidence

Low

Avalanche Summary

No new avalanches were reported in the past few days.

Thank you for all the great Mountain Information Network reports . They are much appreciated by our forecasters. Please keep them coming!

Snowpack Summary

The upper snowpack has been heavily wind effected, with hard wind slabs found on all aspects. Sustained cold temperatures has likely softened the snow surface in wind sheltered terrain. Around 65 to 90cm can be found at treeline in White Pass. Upwards of 100 cm may exist in wind-loaded areas.

The lower snowpack consists of soft, sugary facets and a crust near ground level.

Weather Summary

Saturday Night

Mostly clear skies with light to moderate northerly winds. Chance of isolated flurries.

Sunday

A mix of sun and cloud with light flurries bringing trace amounts of new snow. Light to moderate northerly winds. Alpine highs of -8. Areas closer to the coast may see an inversion with temperatures around -3 at 1500m and -11 at valley bottom.

Monday

A mix of sun and cloud with no new snow expected. Light to moderate westerly winds with a continued temperature inversion.

Tuesday

Mostly cloudy with strengthening westerly winds. Flurries bring a few cm of snowfall over the day. Alpine high of -9.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.

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.