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Avalanche Forecast

Archived

Dec 1st, 2023–Dec 2nd, 2023

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

Regions

Lizard-Flathead, Akamina, Flathead, Lizard.

New snow is a welcome treat! Storm slabs could build throughout the day and be touchy in areas where new snow has buried a surface hoar layer.

Confidence

No Rating

Avalanche Summary

Natural size one dry loose avalanches from steep terrain features reported around the Fernie area. Storm slabs may develop as the snow accumulates throughout the day and become touchy in areas where this new snow buries surface hoar.

Observations are limited this time of year. Please consider filling out a MIN report if you do head out in the backcountry! 🙏

Snowpack Summary

New snow will accumulate overnight and into tomorrow; up to 18 cm is possible. This new snow will cover a surface hoar layer that has been growing on various surfaces of wind-pressed snow, sun crust, and facets.

The snowpack is shallow at treeline, with depths of 60 to 80 cm. Recent cool temperatures have promoted faceting throughout. Snowpack depths taper off quickly below the treeline.

Expect early season conditions.

Weather Summary

Friday Night

Cloudy with flurries, accumulations of 3 cm. Increasing Southwest wind 15 to 30 km/h. Treeline temperature -10 °C.

Saturday

Cloudy with flurries continuing, accumulations of 8 to 18 cm. Southwest wind 25 to 30 km/h. Treeline temperature -5 °C.

Sunday

Cloudy with flurries bringing 3 to 5 cm of new snow. Southwest wind 30 km/h increasing throughout the day. Treeline temperature -4 °C.

Monday

Increasing clouds with flurries, light accumulation. Southwest wind 10 to 15 km/h. Treeline temperature 0 to -3 °C

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.
  • 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

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.