Avalanche Forecast
Issued: Dec 11th, 2017 4:55PM
The alpine rating is Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Weather Forecast
The high pressure ridge will dominate the region until at least Thursday. Temperatures will remain inverted with above freezing temperatures in the alpine and cooler temperatures at the valley bottoms. A weak upper low crossing the region on Tuesday will cause some high level cloud cover and some stronger winds but no precipitation is expected.Â
Snowpack Summary
Small surface hoar in sheltered locations at tree-line. Sun crusts, surface faceting and wind effect on various aspects in the alpine. 15-40 cm of snow lies over the Nov 27th and Nov 23rd crusts. Both of these now overlie the Halloween crust/facet layer that sits 30-50cm above the ground.
Avalanche Summary
During the last few days with inverted temperatures yielding above freezing conditions treeline and above, only a few very small loose wet avalanches in the alpine were observed. These were in steep rocky terrain that was in the sun, and sheltered from the wind. Where observed, these did not triggered any deeper weaknesses.
Confidence
Problems
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Dec 12th, 2017 4:00PM