Ongoing snowfall will cause the hazard to build through out the day. It might be a good idea to finish your objective early.
Weather Forecast
An Atmospheric River is hitting the South Coast and giving moderate precip as far inland as Jasper. Monday: Snow, 20 cm, High -3 C Low -9 C, light gusting strong SW wind, Freezing level 1700 meters. Tuesday: Flurries, 6 cm, Low -10 C, High -6 C, Light gusting moderate W wind.Wed: Cloudy with sunny periods, Low -16 C, High -10 C, light W wind.
Snowpack Summary
Incoming new snow is building fresh storm slabs and is falling on a persistent slab made up of 3 weak interfaces in the top 30 to 50cm of the snowpack. Depth and distribution of these weak surface hoar/facet layers varies within the terrain; although buried surface hoar has consistently been found in sheltered features at TL.
Avalanche Summary
Avalanche control on Parkers Ridge Friday produced 2 large avalanches, size 2 and 2.5 on a N aspect running as the the persistent slab. On the 18th of 18 shots placed, a large crown appeared up to 1.5m thick x 150m long x 300m wide - interesting display of the variability in sensitivity and spacial distribution of buried weaknesses.
Confidence
Intensity of incoming weather systems is uncertain
Problems
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.
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.
Loose Dry
Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.