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Avalanche Forecast

Archived

Dec 29th, 2024–Dec 30th, 2024

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

Regions

South Coast, Powell River, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron, Harrison-Fraser.

New snow may form reactive slabs in wind affected terrain. Avoid freshly wind loaded slopes.

Step back into conservative terrain if you see more than 20 cm of snow over the day.

Confidence

Moderate

Avalanche Summary

Recent avalanches have been limited to size 1.5 slabs in wind affected terrain and loose dry sluff in sheltered areas.

We expect rider triggered avalanches to continue in wind affected terrain with snowfall expected Sunday night and throughout Monday.

Snowpack Summary

Low elevations received rain, or wet and heavy snow. Early season hazards (rocks, stumps and open creeks) are still present. The surface snow may have refrozen with a thick surface crust, or remain moist.

At higher elevations wind affected storm snow is settling rapidly over a thin and breakable rain crust. The mid and lower snowpack is well consolidated. Snow depth is between 125 cm and 250 cm at treeline.

Check out the North Shore avalanche conditions video here from December 27th.

Weather Summary

Sunday Night

Cloudy with 5 to 10 cm of snow. 10-20 km/h southerly ridgetop wind. Treeline temperature -3 °C. Freezing level 700 m.

MondayCloudy with 5 to 10 cm of new snow. Isolated areas may see up to 20 cm. 20 to 30 km/h southerly ridgetop wind. Treeline temperature -3 °C. Freezing level 700 m.

TuesdayCloudy with flurries. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -3 °C. Freezing level 700 m.

WednesdayCloudy with flurries. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -3 °C. Freezing level 700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

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.