Avalanche danger is expected to remain at Considerable during the forecast cold and clear weather for the end of the year.
Summary
Confidence
Fair
Weather Forecast
Clear and cold overnight with alpine temperatures dropping to about -25 and moderate Northeast winds. Winds becoming light Northwest during the day on Tuesday and alpine temperatures rising up to about -14 under clear skies. Cold and clear with light Westerly winds on Wednesday. Increasing cloud on Thursday afternoon with a chance of light snow in the evening.
Avalanche Summary
No natural avalanches reported. Explosives control work resulted in avalanches up to size 1.5 that appear to have run on the mid-December surface hoar that is buried down 40-60 cm.
Snowpack Summary
Some areas may have a thin layer of surface hoar that was buried on December 27th and now has about 5-10 cm of light dry snow above. The slab above the persistent weak layer of surface hoar and crust that was buried in mid-December is now 40-60 cm thick and gives mostly sudden planar results in snow profile tests when moderate forces are applied. The persistent slab problem is widespread across the region and is not expected to improve it's bonding properties during the forecast dry and cold weather. Shallow snowpack areas continue to have concerns for a deeper early season crust/facet layer down more than a metre that may collapse under large loads or from weak trigger spots around exposed rocks and/or trees.
triley,
Avalanche Canada
