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Avalanche Forecast

Archived

Nov 25th, 2024–Nov 26th, 2024

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.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

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

Watch for wind for wind slabs on a variety of aspects at upper elevations as the wind direction changes to northwest in the next few days.

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

New snow falling through the end of last week has likely been redistributed by east and southeast winds now switching to northwest. This has likely resulted in wind slab formation on a variety of aspects. Conditions below treeline are likely variable, where precipitation was been a mix of snow and rain.

The snowpack is generally 150 to 200 cm deep around treeline. Snow depths rapidly decrease at lower elevations.

Weather Summary

Monday Night

Mostly cloudy. 15-20 km/h west and northwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.

Tuesday

Mix of sun and cloud. 20 to 30 km/h west and northwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1100 m.

Wednesday

Mostly cloudy with some sunny breaks. 25 to 45 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 800 m.

Thursday

Mostly cloudy with snow. 25 to 50 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 900 m.

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.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

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.