Avalanche Forecast
Issued: Dec 11th, 2012 4:00PM
The alpine rating is Wind Slabs and Deep Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeLight winds, no snow, and slightly lower temperatures will not change the hazard rating over the next day or two.
Summary
Weather Forecast
Temperatures are forecasted to lower slightly over the next few days, but remain at or slightly above seasonal norms. Winds will be light from the W/NW. Snowfall amounts may be trace along the Divide, with patchy cloud further to the east.
Snowpack Summary
Wind slabs of varying thickness have been developing due to moderate / strong winds. With the moderate temperatures, these wind slabs are settling over top of a well settled mid pack and the Nov 6 rain crust.
Avalanche Summary
No new observations reported.
Confidence
Problems
Wind Slabs
Strong winds from the NW have created wind slabs in the alpine. These wind slabs vary in thickness between 15 and 30cm. With the continued mild temperatures, they have been bonding reasonably well and are more stubborn to trigger.
- Be cautious as you transition into wind affected terrain.
- Be aware of the potential for wide propagations due to the presence of hard windslabs.
Aspects: North, North East, East, South East, South, South West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
The Nov 6th crust should still be in the back of your mind. Recent avalanches on this layer combined with uncertain means of triggering make venturing out onto big open slopes a committing choice.
- Be aware of the potential for full depth avalanches due to deeply buried weak layers.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 12th, 2012 4:00PM