Avalanche danger may rise if snowfall amounts exceed what is forecast.
Confidence
Poor - Timing, track, or intensity of incoming weather is uncertain for the entire period
Weather Forecast
Sunday night: Light snow. Strong W winds. Alpine temperature around -12.Monday: 10-15 cm snow. Moderate to strong NW winds. Alpine temperature around -9.Tuesday: Light snow or flurries, with sunny breaks. Light winds. Alpine temperature around -7.Wednesday: Light snow. Light winds. Alpine temperature around -10.
Avalanche Summary
Numerous loose dry avalanches (size 1.5) failed naturally (some with cornice fall as the trigger) and with skier traffic in steep terrain on Friday and Saturday. In the south-east of the region, a couple of size 2 slabs were triggered by explosives.
Snowpack Summary
10-30 cm of snow which fell on Friday added to recent snowfall above old surfaces including loose dry snow, old wind slabs and sun crusts. This recent snow has been shifted onto lee slopes by strong SW to NW winds. New storm slabs, cornices and wind slabs are likely. Mid and lower snowpack layers are generally well settled and stable.
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.