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Avalanche Forecast

Archived

Dec 27th, 2023–Dec 28th, 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

Lizard-Flathead, South Rockies, Akamina, Flathead, Lizard, Bull, Crowsnest North, Crowsnest South, Elkford East, Elkford West.

Isolated wind slabs may persist, particularly within the Alberta section of the region.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported.

Data in this region is limited. Please consider sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

Recent snow has been redistributed by strong west winds, creating various wind-affected snow surfaces at higher elevations.

There is a prominent crust down 30-60 cm.

The average snow depth at treeline varies widely from 50-100 cm, with the deepest snowpack around the Fernie area. Snow depth tapers rapidly below treeline.

Weather Summary

Wednesday Night

Mostly clear with no precipitation, southwest alpine winds 20 to 30 km/h, treeline temperature -6 °C.

Thursday

Mix of sun and cloud with no precipitation, southwest alpine winds 20 to 30 km/h, treeline temperature -3 °C, freezing level 1500 m.

Friday

Mix of sun and cloud with no precipitation, south alpine winds 10 to 20 km/h, treeline temperature -1 °C.

Saturday

Mostly sunny with no precipitation, south alpine winds 10 to 20 km/h, treeline temperature 0 °C with an alpine temperature inversion.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been wind-affected.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.

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.