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Avalanche Forecast

Archived

Dec 31st, 2023–Jan 1st, 2024

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

North Rockies, Kakwa, McGregor, Pine Pass, Renshaw.

Adopt a conservative approach, while the reactivity and depth of problematic surface hoar layers vary across the region.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported in the region, however there are currently very few field observations.

Last weekend, there were a few reports of natural and skier-triggered avalanches, likely sliding on a layer of buried surface hoar; mostly at treeline and up to size 2.

If you go out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).

Weather Summary

Sunday Night

Partly cloudy with no precipitation, southwest alpine winds 20 to 40 km/h, treeline temperature -5 °C.

Monday

Cloudy with trace snow amounts, southwest alpine winds 10 to 30 km/h, treeline temperature -5 °C.

Tuesday

Partly cloudy with no precipitation, south alpine winds 10 to 30 km/h, treeline temperature -5 °C.

Wednesday

Cloudy with isolated flurries, southwest alpine winds 20 to 50 km/h, treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Surface hoar distribution is highly variable. Avoid generalizing your observations.
  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
  • Start with conservative lines and watch for clues of instability.

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.