Large and destructive avalanches will remain a concern long after the stormy weather has ended. See this
blog post for additional info: http://bit.ly/1HHQrK2
Summary
Confidence
Fair - Due to the number of field observations
Weather Forecast
A general cooling pattern is expected for the forecast period. On Tuesday, Wednesday and Thursday only trace amounts of new snow are expected each day with the possibility of occasional sunny breaks. Ridgetop winds should remain light to moderate from the northwest with daytime freezing levels hovering at about 1300m
Avalanche Summary
Largely due to inclement weather, recent reports have been fairly scarce. For a little over a week, there have been consistent reports of avalanches to size 2.5 occurring on the mid-March persistent weak layer. Some avalanches have occurred naturally and many have been remote triggered from up to 100m away.
Snowpack Summary
This region has a very serious persistent slab problem that exists under the upper layers of dense storm snow. Depending on how much recent snow has fallen, a facet/crust persistent weak layer buried mid-March lies anywhere from 40-120 cm below the surface. Avalanches have continued to run on this layer at upper treeline and alpine elevations, especially in the north of the region. Snowpack layers deeper than this critical interface are reported to be generally well-settled and strong.