During periods of high hazard, avoid all avalanche terrain.
We expect a large natural avalanche cycle with significant precipitation and warming.
Storm snow and strong southwest winds will form reactive storm slabs. Expect to find deeper and more reactive deposits on north- and east-facing slopes.
Rain-on-snow and warm temperatures will rapidly destabilize the snowpack, with 1750 m freezing levels and up to 50 mm expected.
Looking ahead, we expect a widespread natural avalanche cycle with new snow and rain at lower elevations.
On Saturday, a skier was involved in a storm slab avalanche, up to 60 cm deep, near July Mountain.
Thank you for sharing your observations to the MIN.
25 to 50 cm of new snow will fall above 1500 m, with rain below. Snow will be redistributed by strong southwesterly winds. Expect to find deeper and more reactive deposits on north and east-facing slopes. This falls on 30 to 50 cm of recent snow. Below this, there are hard wind-affected surfaces or a thin melt-freeze crust on southerly slopes.
A supportive crust is found 60 to 80 cm deep on all aspects except on high, north-facing alpine terrain, and the recent settling snow is bonding well to it.
A weak layer of facets and surface hoar from February is now 90 to 150 cm deep and a layer of facets and surface hoar from late January is 130 to 190 cm deep. No recent notable test results have been seen on these layers.
Sunday Night
Cloudy with 15 to 20 mm, falling as snow above 1500 m. 60 to 80 km/h southwest ridgetop winds. Treeline temperature 1 °C.
Monday
Cloudy with 10 to 30 mm, falling as snow above 1500 m. 50 to 80 km/h southwest ridgetop winds. Treeline temperature 2 °C.
Tuesday
Cloudy with 2 mm, falling as snow above 2000 m. 20 to 50 km/h southwest ridgetop winds. Treeline temperature 6 °C.
Wednesday
Partly cloudy. 30 km/h south ridgetop winds. Treeline temperature 4 °C.
More details can be found in the Mountain Weather Forecast.
