Avalanche Forecast

Issued: Dec 2nd, 2023 4:00PM

The alpine rating is moderate, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Storm Slabs.

Avalanche Canada trettie, Avalanche Canada

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Use extra caution at treeline where surface hoar is more likely to be preserved.

Reports are coming in indicating that this layer is sensitive to human triggers.

Summary

Confidence

Low

Avalanche Summary

No recent avalanches have been reported in our region.

Consider supporting your backcountry community by submitting your own observation in a MIN report.

Snowpack Summary

Up to 30 cm of recent low density snow could have formed storm slab in the alpine and treeline on terrain features that are above threshold for avalanches. This new snow overlies large surface hoar in sheltered terrain.

At treeline, the height of snow ranges from approximately 60 to 90 cm. Below this elevation, snow height decreases drastically. The snowpack at all elevations is very shallow and contains many potential hazards just beneath the surface.

Weather Summary

Saturday Night

Partly cloudy with trace amounts of new snow expected, south alpine wind 25 to 40 km/h, treeline temperature -8°C.

Sunday

Mostly cloudy, up to 10 cm of new snow expected, southwest alpine wind 40 to 60 km/h, treeline temperature -6°C.

Monday

Mostly cloudy with up to 10 cm of new snow expected, southwest alpine wind 25 to 50 km/h, freezing level up to 1700 m.

Tuesday

Cloudy , 10 to 20 cm of new snow expected, south alpine wind 40 to 60 km/h, freezing level rising to 2100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Problems

Storm Slabs

An icon showing Storm Slabs

New snow is forming rider triggerable storm slabs. The most reactive slabs will be found at treeline where surface hoar is most preserved.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Very Likely

Expected Size

1 - 2.5

Valid until: Dec 3rd, 2023 4:00PM

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