Danger will increase as a storm arrives on Monday and continues into Tuesday.
Confidence
Moderate - Forecast snowfall amounts are uncertain
Weather Forecast
SUNDAY NIGHT: Increasing cloud overnight, 15-40 km/h west wind, alpine temperatures drop to -8 C.MONDAY: Snow starting midday with accumulations of 5-20 cm by the evening, 30-60 km/h west wind, alpine high temperatures near -6 C, freezing level 700 m.TUESDAY: Snow continues in the morning and eases off in the afternoon, total accumulations of 15-30 cm over the course of the storm, 20-30 km/h northwest wind, alpine high temperatures near -5 C, freezing level 1100 m.WEDNESDAY: Mix of sun and cloud, light west wind, alpine high temperatures near -5, freezing level 1100 m.
Avalanche Summary
Over the past few days, several small (size 1) storm slab and loose dry avalanches were triggered naturally and by skiers within the recent snow.
Snowpack Summary
New snow is accumulating above 10 to 15 cm of recent snow. Strong southwest wind will likely form drifts and wind slabs in exposed areas. Beneath the recent snow you may find hard wind-affected snow at higher elevations, soft faceted snow in shaded and sheltered areas, and crusts on steep southerly slopes. The middle and lower snowpack is well-settled.
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.