Avalanche Forecast
Issued: Dec 26th, 2018 4:23PM
The alpine rating is Deep Persistent Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeThe snowpack is slowly starting to stabilize however forecaster's confidence is low. Remember that human triggered avalanches are still possible with a Moderate danger rating. It is still a good idea to avoid bigger features and convex terrain.
Summary
Weather Forecast
Thursday will bring a mix of sun and cloud with day time highs (at treeline) of -5 to -8. Winds forecasted to be light and there is no snow in the forecast through Friday. More snow and stronger winds are expected on Saturday.
Snowpack Summary
In deeper snowpack areas there is 60-80 cm of settled snow over top of the Dec10 surface hoar/facet layer. Shears on this layer are generally producing hard but sudden planar results. In shallow areas the main concern is the weak basal facets which continue to produce whumphing and easy test results. Extra caution is warranted in shallow areas.
Avalanche Summary
One fresh natural avalanche observed on Observation Pk. Ski hills reported no new natural activity and only minimal results with explosives.
Confidence
Problems
Deep Persistent Slabs
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.
Be wary of large slopes that did not previously avalanche.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
This problem is the Dec 10 surface hoar/facet layer which is down 40-80 cm along the Divide. Although this layer is stabilizing, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 27th, 2018 4:00PM