This heavy snowfall and wind event will be a significant test of our buried November persistent weak layer (PWL). This storm will add significant stress to these layers, particularly with any other new snow avalanche stepping down to these old layers, creating large and tree snapping avalanches. At lower elevations, the poor structure still exists and remains suspect, particularly with additional rain today.

Sensitive soft slabs of wind blown snow will be found on steep slopes of the mid and upper elevations, predominantly on north to east to south facing slopes. Some of these will run naturally.

These can be found well off the ridgelines and around other terrain features. Cracking is a clear sign of instability. Avoid steep terrain with fresh wind drifts.