Avalanche Forecast
Issued: Dec 12th, 2016 4:10PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
mbender,
Avalanche Canada
If the wind picks-up, new reactive wind slabs may form
Summary
Confidence
Moderate - Wind speed and direction is uncertain on Tuesday
Weather Forecast
Tuesday: Clear skies / Light north wind / Alpine temperature of -17Wednesday: Sunny with cloudy periods / Light south wind / Alpine temperature of -10Thursday: Mix of sun and cloud / Light to moderate northerly wind / Alpine temperature -8
Avalanche Summary
In recent days, a few skier triggered wind slabs size to 1.0 were reported at treeline and in the alpine.
Snowpack Summary
In most areas there is 30-50 cm of recent low density storm snow that has stayed unconsolidated except where it has been transported into wind slabs. The surface snow has been facetting due to the cold temperatures, and some surface hoar has been developing in isolated areas. The mid-pack has been reported to be well settled above above a crust that was buried in mid-november. This crust may be buried less than a metre to close to 2 metres deep, depending on elevation and previous exposure to winds. Snowpack tests on the crust have shown variable results from sudden to no result. Professionals continue to monitor this crust and are watching for facet development above and below that may increase reactivity. The basal layers of the snowpack continue to be reported to be moist in some of the deeper snowpack areas of the region.
Problems
Wind Slabs
Wind slabs are reported to exist at treeline and in the alpine. Watch for conditions that change with aspect and elevation.
Dig down to find and test weak layers before committing to a line.Be cautious as you transition into wind affected terrain.Avoid travelling in areas that have been reverse loaded by winds.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 13th, 2016 2:00PM
