Avalanche Forecast
Issued: Feb 16th, 2014 8:15AM
The alpine rating is Storm Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Timing, track, or intensity of incoming weather system is uncertain
Weather Forecast
Overnight and Monday: 10-15 cm of snow above 1000 metres overnight with strong Southwest winds. Another 10-15 cm during the day combined with moderate Southwest winds and freezing levels rising to about 1500 metres.Tuesday: Snow ending overnight and a chance of broken skies during the day. Light Southwest winds building during the day to strong by evening as the next pulse of moisture moves quickly into the region.Wednesday: Snow ending by early morning. Winds becoming light Southwest with high cloud and some sunny breaks.
Avalanche Summary
Explosive control produced many size 2.0 avalanches in the storm snow. Forecast new snow and very strong winds are expected to add to the load above the buried weak layers. Human triggering is expected to continue, and natural avalanches may result from the new storm loading.
Snowpack Summary
40-50 cm of recent storm snow has been transported into deep pockets of wind slab on North thru East aspects. Below the storm snow there is about 20 cm of snow from last week that buried the late January layer of crusts and/or facets and surface hoar. This persistent weak layer from Late January continues to be the sliding layer for natural and human triggered avalanches. The mid snowpack is well settled and strong. The deeply buried weak layers of early season facets and depth hoar have been dormant, but they may become reactive with the right combination of added load and warm temperatures. The forecast new snow and wind are expected to add to the load above the late January weak layer, and may result in avalanches running naturally or increased sensitivity to human triggers at this interface.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 17th, 2014 2:00PM