Avalanche Forecast
Issued: Mar 3rd, 2015 7:18AM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good - The weather pattern is stable
Weather Forecast
A very persistent ridge of high pressure will maintain dry and mainly sunny conditions for⦠a long time (at least a week, but probably longer). Temperatures should slowly rise with a freezing level near 1200-1400 m on Wednesday, 1500-1600 m on Thursday, and around 2000 m heading into the weekend. Ridge winds should be generally light but gusting to moderate from the NW-SW.
Avalanche Summary
On Monday there were reports of small rider-triggered loose snow avalanches in steep terrain. It might also be possible to trigger thin pockets of wind slabs in exposed lee terrain.
Snowpack Summary
Shady and sheltered slopes have around 5-10 cm of fresh low-density snow, with thin wind slabs forming in exposed lee terrain. Sun-exposed slopes likely have a thin sun crust on the surface. The most prominent feature in the snowpack is a thick crust, down 5-30 cm. This crust is supportive all the way to ridge crest and is effectively "capping" the snowpack, keeping riders from tickling any deeper weak layers. There are still weak layers below this crust that we'll continue to monitor, but for now these layers are dormant. We would likely need significant warming and/or heavy loading to re-activate them.
Problems
Wind Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 4th, 2015 2:00PM