Large open planar slopes would be areas to avoid where weak layers would be above any surface roughness and would propagate if triggered. Cold temperatures will be a factor again today to watch out for. Stay warm!
Weather Forecast
Still under the high pressure ridge with cold temperatures and thin cloud today. A series of weak disturbances bringing light flurries as high pressure ridge slowly breaks down. Temperatures are slowly on the rise to more tolerable levels throughout the week.
Snowpack Summary
Rain crust to ~1500m. Above, settling storm snow over the Nov 21 surface hoar/crust/facet layer, aspect and elevation dependant, down ~100cm. The Nov 9 facet/crust layer is down 110-130cm to the ground at ~2000m. Snowpack tests show triggering these layers to be in the moderate range with large propagation to be very likely.
Avalanche Summary
No new avalanche observed
Confidence
The weather pattern is stable on Monday
Problems
Persistent Slabs
Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.
Storm Slabs
Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.