Northwest Coastal

The next storm is forecast to move into the region tonight. New snow and wind will result in HIGH avalanche danger.

Poor - Timing, track, or intensity of incoming weather system is uncertain

The next pulse in a series of Pacific storms is expected to push into the region this evening and continue to produce moderate precipitation during the day on Thursday. Friday should be a bit of a break between storms, but still overcast with convective periods producing flurries. Cooler air is forecast to start moving down from the north on Friday bringing the freezing level down to valley bottoms. At this time the Saturday system does not look like it will produce much precipitation in the north, stay tuned as we watch the models evolve.

No new avalanches reported. I suspect that new storm slabs are developing and may be easily triggered by light additional loads.

The snowpack is highly variable across different aspects and elevations. So far, we only have limited information from the field. Initial reports suggest that there is around 150 cm at 2000 m. Recent winds have scoured exposed slopes, and left variable wind slabs and crusts. In some places, a crust/facet interface or surface hoar can be found in the upper snowpack. At high elevations, a crust which formed early season may exist near the base of the snowpack. The new storm snow may not bond well to the mix of old surfaces left behind after the recent high pressure. Buried surface hoar may be found below the new storm snow at lower elevations, or in areas where the recent temperature inversion was not strong enough to melt it.