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Avalanche Forecast

Archived

Dec 2nd, 2023–Dec 3rd, 2023

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.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
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 will likely 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 recent snow could have formed storm slab in the alpine and treeline on terrain features that are above threshold for avalanches. This new snow could overlie surface hoar in sheltered terrain.

At treeline, the height of snow ranges from approximately 50 to 100 cm. Below this elevation, snow height decreases drastically. The snowpack at all elevations is very shallow and contains many potential hazards just beneath the surface.

Read the new Forecaster's Blog for more on the early-season snowpack.

Weather Summary

Saturday Night

Partly cloudy with up to 5 cm of new snow expected, southwest alpine wind 40 to 60 km/h, treeline temperature -8°C.

Sunday

Mostly cloudy, 5 to 10 cm of new snow expected, southwest alpine wind 40 to 70 km/h, treeline temperature -6°C.

Monday

Mostly cloudy with up to 10 cm of new snow expected, southwest alpine wind 25 to 50 km/h, treeline temperature -2°C.

Tuesday

Increasing cloud throughout the day, around 5 cm of new snow expected, southwest alpine wind 40 to 70 km/h, freezing level rising to 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • 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.