Avalanche Forecast
Issued: Dec 18th, 2015 3:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
High
Weather Forecast
Mainly cloudy with isolated flurries tomorrow. Flurries will bring only trace amounts of new snow. The temps will be similar to today with an alpine high of -10. Strong ridge top winds (30-40km/hr) will continue overnight tonight and into tomorrow. Hopefully dropping to moderate by early afternoon. The direction will be from the SW. But if today is any indication, be prepared for variable wind direction. Today saw it from all directions due to local alpine terrain.
Avalanche Summary
Lots of sluffing on the steep faces today. The sluffing has created small slabs at the base of cliffs. In a few cases, these slabs did release. The biggest was a sz1, on a steep East aspect at 2200m.
Snowpack Summary
We didn't get the snow that was forecast, but we sure got the wind! Lots of wind transport today at all elevations. Below treeline saw some minor redistribution of the available snow, but not enough to create an avalanche problem. Small test profiles indicated the Dec 4th is down 30cm. The actual interface is still evident as a density change & grain change. But as far as reactivity goes, the Dec 4th seems to be healed in all areas we dug. This doesn't mean the layer is not an issue, but it does suggest it isn't as big a problem anymore. Especially factoring the low density snow above it. Treeline has a very similar character. At upper treeline we did 3 different compression tests with no results on any layer. The Dec 4th interface is visible, but it doesn't seem to pose a threat at the moment. The alpine is a different story. The continuous, strong winds have created new wind slabs on almost all aspects. At the moment these slabs are thin and limited to areas directly below cliffs.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 19th, 2015 2:00PM