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Avalanche Forecast

Archived

Mar 29th, 2023–Mar 30th, 2023

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches possible, human triggered probable.
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 Coast, Powell River, Tantalus, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron.

Assess conditions as you move through the mountains today.

Continue to make proper terrain and travel decisions.

Confidence

Moderate

Avalanche Summary

No new avalanches since Saturday.

If you head out in the backcountry, let us know what you are seeing by submitting a report to the Mountain Information Network.

Snowpack Summary

Winds that were southwest, switched to the northeast and may have created wind slabs on all aspects.

Below the recent snow is a melt-freeze crust, existing on all aspects at treeline and below. The crust extends to mountain tops on sunny aspects. In north-facing high alpine terrain, the surface snow may have remained cold and dry.

The mid and lower snowpack is generally well-settled and strong.

If you are a visual learner click here for a video describing the snowpack.

Weather Summary

Wednesday Night

Clear, no accumulation, winds west 10 to 15 km/h, freeing levels 1500 m.

Thursday

Sunny with few clouds, no accumulation, winds southwest 10 to 15 km/h, freezing levels 1400 m.

Friday

Cloudy, up to 30 cm accumulation starting in the overnight and throughout the day much at higher elevations and rain everywhere else, winds southwest 25 to 40 km/h, freezing levels to 800 m.

Saturday

Cloudy, up to 10 cm accumulation, winds southwest 15 to 25 km/h gusting to 40, freezing levels around 800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Avoid exposure to slopes that have cornices overhead.
  • Make observations and assess conditions continually as you travel.

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.