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Avalanche Forecast

Archived

Feb 6th, 2024–Feb 7th, 2024

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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

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

Shifting winds can result in difficult to identify patterns of wind slab. Watch for signs of instability like shooting cracks as you transition to open terrain.

Confidence

Moderate

Avalanche Summary

Several loose dry activity up to size 1.5 in neighboring regions out of steep terrain features.

Snowpack Summary

Recent snow has accumulated over a crust at treeline and alpine elevations. On the east side of the region, there is 20 to 40 cm, and on the west side 10 cm on this crust.

Below this crust, the shallow faceted snowpack is moist, with two crust layers, one in the midpack and another near the base of the snowpack. Avalanches on these layers are unlikely, but we continued to monitor their reactivity.

Weather Summary

Tuesday Night

Mainly cloudy. Alpine wind west 10 to 15 km/h. Treeline temperature -5 °C.

Wednesday

Cloudy then clearing with sunny breaks. Alpine wind northeast 5 to 15 km/h. Treeline temperature -4 °C.

Thursday

Mainly cloudy. Wind southwest 10 to 20 km/h. Treeline temperature -4 °C.

Friday

Mainly cloudy, 3 to 5 cm accumulation. Wind southwest 20 to 25 km/h. Treeline temperature -4 °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.
  • Wind slabs may be poorly bonded to the underlying crust.

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.