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Avalanche Forecast

Archived

Mar 10th, 2022–Mar 11th, 2022

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, 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.

Continue to assess the wind effect as you gain elevation. Wind slab could be found in unusual locations due to recent north winds.

Confidence

Moderate -

Weather Forecast

Thursday night: possibility of light flurries bringing trace amounts of snow. Low of -13 at 1900m. Light westerly winds. 

Friday: A mix of sun and cloud. Moderate west wind. High of -5 at 1900m. 

Saturday: a mix of sun and cloud with the possibility of light flurries early in the morning. Freezing levels around 1500m. . Light to Moderate southwest winds.

Sunday: cloudy with light precipitation bringing up to 5cm of snow throughout the day. Light southwest winds and freezing levels rising to 1800m.

Avalanche Summary

No new avalanches were observed on Wednesday.

Observed avalanche activity on Tuesday was limited to size 1 skier triggered storm slab and loose dry avalanches. Little wind effect or slab property was observed in the new snow.

Snowpack Summary

The southeast corner was the winner again on Monday with 20-40 cm on the eastern slopes of the range. Elsewhere, closer to 10 cm (if any) new snow sits over a crust on steep south facing slopes and below 1500 m. The new snow has likely seen a bit of wind effect in exposed terrain at upper elevations.

Terrain and Travel

  • Expect slab conditions to change drastically as you move into wind exposed 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.