Snowfall is expected to form reactive slabs at higher elevations over the day.
Watch for deeper and more sensitive slabs near ridgelines and mid slope rollovers.
Fresh storm slabs will build over the day, forming over the widespread melt freeze crust. At lower elevations precipitation may be mixed snow or rain.
No new avalanches were reported on Sunday. Last week's rain and warm temperatures produced a widespread wet avalanche cycle. Moving forward, we expect reactivity to rider triggers, especially in wind-loaded terrain features.
If you are heading into the backcountry, please consider sharing conditions via the MIN.
By Tuesday afternoon, up to 20 cm of new snow may have fallen, redistributed into deeper deposits on north and east facing slopes. New snow sits over a melt-freeze crust, which will likely bond poorly. Rain is expected at lower elevations.
Up to 50 cm of snow lies now over a crust (1 to 10 cm thick) from early March. Persistent weak layers may linger within the upper 120 cm of the snowpack. These remain a concern where supportive crust exists above.
The mid and lower snowpack is well settled and strong in most areas.
Monday Night
Partly cloudy. 2 mm of precipitation as snow or rain at treeline. 30 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 2000 m.
Tuesday
Cloudy. 15 to 20 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level rise in the afternoon 1600 to 2000 m.
Wednesday
Mix of sun and clouds. 3 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1700 m.
Thursday
Mostly sunny. 3 to 5 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -8 °C.
More details can be found in the Mountain Weather Forecast.
