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Avalanche Forecast

Archived

Dec 9th, 2023–Dec 10th, 2023

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, 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

Cariboos, North Columbia, Clearwater, Quesnel, Jordan.

Watch for fresh wind loading, storm snow remains reactive to human triggers

Confidence

Low

Avalanche Summary

Potential for continued reactivity exists in areas where the rain crust thins, or does not exist.

Please continue to submit MIN reports and support your backcountry community.

Snowpack Summary

Strong winds will redistribute 10-20 cm of recent snow into deeper deposits on north and east facing slopes. This snow covers a widespread crust from the rain. This rain crust is thought to extend to ridgetop in many areas, however we have limited observations in this area.

The greatest concern is a large and weak layer of surface hoar, found 40-60 cm deep. This surface hoar sits on a thin sun crust on steep south-facing slopes.

The mid-pack is generally well-settled. Lower in the snowpack a crust with weak facets beneath it can be found 20 cm off the ground.

Weather Summary

Saturday Night

Mostly cloudy with up to 5 cm of snow possible. Treeline temperatures around -4 °C. Southwest winds, 40-60 km/h.

Sunday

Cloudy with another 10 cm of snow possible in terrain near Highway One. Winds ease to 40 km/h from the west. Freezing levels rise towards 1000 m. Treeline temperatures around -4 °C.

Monday

Cloudy with no snow expected. Light and variable winds. Treeline temperatures reach -4 °C.

Tuesday

Mostly sunny with no snowfall expected. Treeline temperatures around -6 °C. Southerly winds, 15-30 km/h.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

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.