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Avalanche Forecast

Archived

Nov 26th, 2024–Nov 27th, 2024

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

Regions

South Coast, Powell River, Tantalus, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron.

Conditions are still a bit rugged with firm surfaces and shallow coverage by North Shore standards. Make sure your objectives align with an early-season snowpack.

Confidence

Moderate

Avalanche Summary

There are no recent avalanches to report in the last few days.

Please consider sharing any observations you have on the Mountain Information Network.

Snowpack Summary

Sheltered higher elevations may still hold pockets of soft snow, but most snow-covered areas of the North Shore are expected to have recently firmed up as a result of either melt-freeze cycling or strong winds. More recent wind slabs formed in higher alpine areas (think Sky Pilot) may still react to a human trigger.

Snowpack height at treeline is uncertain but has likely diminished significantly since readings of 150 - 200 cm during the recent storms. It diminishes rapidly below treeline.

Weather Summary

Tuesday night

Increasing cloud. 30 to 50 km/h west and northwest ridgetop wind. Freezing level 600 m.

Wednesday

Mostly cloudy with some sunny breaks. 25 to 40 km/h west and northwest ridgetop wind. Treeline temperature -5 °C. Freezing level 700 m.

Thursday

Cloudy with scattered flurries bringing less than 5 cm of new snow, increasing overnight. 25 to 35 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 700 m.

Friday

Cloudy with easing snowfall bringing new snow totals to 15-25 cm by end of day. 35 - 50 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 900 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • A hard crust on the snow surface will help strengthen the snowpack, but may cause tough travel conditions.

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.