Persistent Weak Layer on Slab Cliffs

We toured into the Slab Cliffs area to monitor the Jan 4 rain crust and facet layer.  We dug several snowpits at different locations, all locations were very easy to find and identify the Jan 4 layer on northerly aspects.  Near the ridgeline at 9600', previous wind loading had occurred with limited amounts of recent storm snow on the surface, 4-6''.  In more protected near and below treeline terrain, about 1' of settled storm snow existed.  Snowpack tests were somewhat inconsistent, but many of them indicated that propagation was likely if this weak layer could be triggered.