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Avalanche Forecast

Archived

Feb 10th, 2024–Feb 11th, 2024

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

South Rockies, Akamina, Bull, Crowsnest North, Crowsnest South, Elkford East, Elkford West.

New snow and strong wind are developing wind slabs. Human-triggered avalanches are possible. Assess for signs of instability like shooting cracks as you transition into open terrain.

Confidence

Moderate

Avalanche Summary

On Saturday explosive triggered wind slabs up to size 3, failing on the crust layer were reported in the south of the region.

Suspect the east side of the region to see increased wind slab activity with moderate to strong southwest winds.

Snowpack Summary

New snow is being redistributed by moderate to strong southwest winds developing wind slabs at all elevations over various surfaces of wind-affected snow, soft snow, and a crust layer.

Below this crust, the shallow faceted snowpack is generally well consolidated. Two crust layers, one in the midpack and another near the base of the snowpack continue to be monitored. Avalanches on these layers are unlikely.

Weather Summary

Saturday Night

Increasing clouds. Alpine wind 25 to 30 km/h southwest. Treeline temperature -10 °C

Sunday

Mainly cloudy with scattered flurries with 2 to 4 cm accumulated. Alpine wind west 15 to 20 km/h. Treeline temperature -7 °C.

Monday

Mainly cloudy with isolated flurries with 1 to 3 cm accumulated. Alpine wind southwest 20 to 25 km/h. Treeline temperature -7 °C.

Tuesday

Mainly cloudy with scattered flurries 2 to 5 cm accumulated. Alpine wind 10 to 20 km/h west. Treeline temperature -12 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Seek out sheltered terrain where new snow hasn't been wind-affected.

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.