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Avalanche Forecast

Archived

Dec 28th, 2023–Dec 29th, 2023

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

Regions

Sasquatch, Sasquatch, Coquihalla, Harrison-Fraser, Manning, Skagit.

Watch for signs of instability as temperatures rise and solar radiation increases.

Avoid steep slopes and overhead hazard if you notice signs of warming.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported.

If you do head into the backcountry please consider submitting observations and/or photos on the Mountain Information Network.

Snowpack Summary

Around 5 to 10 cm of moist snow overlies 10 to 20 cm of consolidated snow. All of this shows a good bond to a hard melt-freeze crust that it overlies. Moderate wind has redistributed some of this snow, leaving the crust near the surface on wind-affected slopes and potentially deeper deposits in lee terrain features.

In north-facing terrain protected from the wind, you may find a buried layer of surface hoar approximately 20 cm deep, which shows some reactivity in snowpack tests.

Overall, the snow depth remains shallow, early season hazards are just below the surface.

Weather Summary

Thursday Night

Scattered clouds. Southwest alpine wind, 20-40 km/h. Treeline temperature +1 °C. Freezing level rising to 2200 m.

Friday

Mainly sunny with clouds building through the day. Southeast alpine wind 30 km/h. Treeline temperature +4°C. Freezing level rising to 2500 m.

Saturday

A mix of sun and cloud, with trace new snow. Southeast alpine winds, 15-25 km/h. Treeline temperature +2 °C. Freezing level falling 2600 m to 1700 m.

Sunday

Mix of sun and clouds with 5 cm new snow overnight. Southwesterly alpine winds, 10-20 km/h. Treeline temperature 0 °C. Freezing level 1300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep slopes when air temperatures are warm, or solar radiation is strong.
  • The more the snowpack warms-up and weakens, the more conservative you`ll want to be with your terrain selection.
  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.