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Avalanche Forecast

Archived

Dec 3rd, 2023–Dec 4th, 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.
Below Treeline
Natural avalanches unlikely.

Regions

North Rockies, Kakwa, McGregor, Pine Pass, Renshaw, Robson.

Carefully assess snowpack depth as you move through terrain. A rider triggerable storm slab could be present on slopes that are above threshold for avalanches.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported in our region.

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

Snowpack Summary

Up to 30 cm of new snow has fallen on a a generally faceted upper snowpack. This new snow likely overlies surface hoar in sheltered terrain at treeline. On north and east facing slopes in the alpine new snow has formed wind slab.

The mid pack is generally unconsolidated. A crust with sugary facets beneath it can be found just above the ground.

The snowpack is still shallow for this time of year. Average snowpack depth at treeline range from 50 to 80 cm.

Weather Summary

Sunday Night

Mostly cloudy with up to 5 cm of new snow expected, south alpine wind 40 to 60 km/h, treeline temperature -3°C.

Monday

Cloudy with up to 10 cm of new snow expected, south alpine wind 40 to 70 km/h, freezing level rising to around 1400 m.

Tuesday

A mix of sun and cloud with up to 10 cm of new snow expected by late morning, southwest alpine wind 40 to 70 km/h, freezing level around 1600 m.

Wednesday

A mix of sun and cloud with trace amounts of new snow expected, southwest alpine wind  20 to 40 km/h, freezing level falling to 1100 m.

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.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.