Avalanche Forecast

Issued: Dec 4th, 2023 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Loose Wet.

Avalanche Canada isnowsell, Avalanche Canada

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Another day or two of refreezing will likely provide safer and more enjoyable backcountry travel after the heavy rain

Summary

Confidence

Moderate

Avalanche Summary

We expect the natural avalanche activity to slow as rain amounts taper into Tuesday and freezing levels gradually drop. However human-triggered avalanches will remain possible.

If you're heading out in the backcountry, please consider sharing any observations on the Mountain Information Network

Snowpack Summary

Much of the snowpack will become saturated with the current precipitation and high freezing levels. Depending on elevation, the upper snowpack sits over a shallow cover of crusts and old snow, or directly on the ground. The snowline will be creeping up as rain washes it away at lower elevations.

Weather Summary

Monday Night

Cloudy with 30 to 50 mm of rain, southwest alpine winds 80 to 100 km/h, treeline temperatures 6 °C and freezing levels roughly 2500 m, dropping through the day.

Tuesday

Mostly cloudy with up to 10 cm snow in the alpine and rain at lower elevations, southwest alpine winds 50 to 70 km/h, treeline temperature 3 °C and freezing levels 1500 m and gradually dropping through the day.

Wednesday

Partly cloudy with no precipitation, southwest alpine winds 10 to 20 km/h, treeline temperature 0 °C and freezing levels 1200 m.

Thursday

Partly cloudy with isolated flurries, west alpine winds 10 to 30 km/h, treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • If you stay late on the mountain, make sure you wait until the surface begins to freeze before anticipating a decrease in danger.
  • 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

Loose Wet

An icon showing Loose Wet

Loose wet avalanches will remain reactive until temperatures drop to a level that allows the upper snowpack to refreeze.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Dec 5th, 2023 4:00PM

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