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Avalanche Forecast

Archived

Dec 13th, 2023–Dec 14th, 2023

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

Regions

Vancouver Island, East Island, North Island, South Island, West Island.

New snow and wind will create fresh wind slabs that sit on a hard crust.

Confidence

Moderate

Avalanche Summary

No avalanches have been reported recently.

If you are out in the backcountry please consider filling out a MIN report.

Snowpack Summary

By Wednesday morning, up to 20 cm of recent snow will bury a hard melt-freeze crust. Below the crust is a relatively consolidated snowpack with no significant concerns.

The snowpack is generally still very shallow with many early-season hazards and large areas of terrain below avalanche threshold. Only specific terrain features with smooth ground cover, gullies, or established avalanche paths are above the threshold for avalanches.

Weather Summary

Wednesday Night

Cloudy with 5 to 20 cm of snow, southwest alpine winds 40 to 50 km/h, treeline temperature -1 °C, freezing level 900 m.

Thursday

Mostly cloudy with 0 to 5 cm of snow, west alpine winds 30 to 40 km/h, treeline temperature -1 °C, freezing level 1000 m.

Friday

Mostly cloudy with 0 to 5 mm of rain, south alpine winds 50 to 80 km/h, treeline temperature 3 °C, freezing level 2300 m.

Saturday

Mix of sun and cloud with no precipitation, southwest alpine winds 40 to 50 km/h, treeline temperature 5 °C, freezing level 3000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid areas where the snow feels stiff and/or slabby.
  • Closely monitor how the new snow is bonding to the crust.
  • 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

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.