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Avalanche Forecast

Archived

Feb 26th, 2024–Feb 27th, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast, North Shore, Sasquatch, Sasquatch, Tetrahedron.

Heightened avalanche conditions exist in the alpine where stubborn wind slabs remain possible to human-trigger

Evaluate terrain features on an individual basis before committing to them

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported in the region.

Snowpack Summary

5 to 15 cm of recent snow overlies a widespread crust at treeline and below. At the highest elevations, the snow buried old wind affected surfaces.

The mid and lower snowpack are generally well consolidated, and likely still moist from the recent rain. Conditions remain rugged at lower elevations, with a shallow snowpack.

Weather Summary

Monday Night

Mostly clear skies. 25 to 40 km/h northwest ridgetop wind. Treeline temperature -10 °C. Freezing levels drop to valley bottom.

Tuesday

Increasing clouds. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -10 °C. Freezing level hovers around 500 m.

Heavy snowfall begins Tuesday evening.

Wednesday

Cloudy with snow switching to rain, accumulation 30 to 50 cm above the rain-snow line. Freezing level rises from 500 m to 1500 m. 70 to 90 km/h southwest ridgetop wind. Treeline temperature -2 °C. 

Thursday

Cloudy with 2 to 10 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -7 °C. Freezing level hovers around 600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious 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.