Backcountry Avalanche Advisory 

As of Wednesday, Dec. 9

Alpine: Low through Friday

Treeline: Low through Friday

Below Treeline: Low through Friday

Travel Advisory : The strong north winds last weekend redistributed the loose surface layers from exposed areas forming pockets of stiff windslab on more southerly slopes and to the lee of terrain features. This reverse loading has happened over a well-settled mid-season-like snow pack. Some areas are scoured down to last week's melt-freeze crust.

Avalanche Activity: No avalanche activity has been observed in the last couple of days. Expect isolated pockets of stiff windslab on lee (southerly) aspects from the northerly winds.

Snowpack: Areas of windslab can be found in lee/cross loaded south facing terrain, with wind scouring on the more exposed aspects. The stiff windslab is sitting over lower density snow above a melt-freeze crust in the alpine. The extended period of cold temperatures has resulted in a deterioration of the upper layers of the snowpack in the alpine and at treeline elevations. These faceted layers of snow could become a potential weakness once buried by future snowfalls. The progressively rain-moistened snowpack below 1,950 metres has been gradually firming up with the cold temperatures throughout the week.

Weather: Mainly sunny skies and cold temperatures today will give way to increasing cloud cover tonight and tomorrow. A cool unstable northwesterly flow may become established over the weekend as we enter a transitional period, with a return to a more seasonal weather pattern for next week.

Conditions may vary and can change rapidly. Check for the most current conditions before heading out into the backcountry. Daily updates for the areas adjacent to Whistler/Blackcomb are available at 604-938-7676, or surf to www.whistler-blackcomb.com/weather where there is also a link to the CAA public avalanche bulletin, or call 1-800-667-1105.

- Whistler Mountain Snow SafetyAs of Wednesday, Dec. 9

Alpine: Low through Friday

Treeline: Low through Friday

Below Treeline: Low through Friday

Travel Advisory : The strong north winds last weekend redistributed the loose surface layers from exposed areas forming pockets of stiff windslab on more southerly slopes and to the lee of terrain features. This reverse loading has happened over a well-settled mid-season-like snow pack. Some areas are scoured down to last week's melt-freeze crust.

Avalanche Activity: No avalanche activity has been observed in the last couple of days. Expect isolated pockets of stiff windslab on lee (southerly) aspects from the northerly winds.

Snowpack: Areas of windslab can be found in lee/cross loaded south facing terrain, with wind scouring on the more exposed aspects. The stiff windslab is sitting over lower density snow above a melt-freeze crust in the alpine. The extended period of cold temperatures has resulted in a deterioration of the upper layers of the snowpack in the alpine and at treeline elevations. These faceted layers of snow could become a potential weakness once buried by future snowfalls. The progressively rain-moistened snowpack below 1,950 metres has been gradually firming up with the cold temperatures throughout the week.

Weather: Mainly sunny skies and cold temperatures today will give way to increasing cloud cover tonight and tomorrow. A cool unstable northwesterly flow may become established over the weekend as we enter a transitional period, with a return to a more seasonal weather pattern for next week.

Conditions may vary and can change rapidly. Check for the most current conditions before heading out into the backcountry. Daily updates for the areas adjacent to Whistler/Blackcomb are available at 604-938-7676, or surf to www.whistler-blackcomb.com/weather where there is also a link to the CAA public avalanche bulletin, or call 1-800-667-1105.

- Whistler Mountain Snow Safety

 

 

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