top of page

Ben Lomond Avalanche on March 21 and how we got to a myriad of avalanche problems.

High Pressure set in for 7 days from March 14- March 20 during that time our snow surface faceted and we grew surface hoar on the snow surface.  These persistant grains were than preserved by the wind event on March 20-21 and buried even more with snow on Friday March 22.  We followed up with easy to trigger wind and storm slabs on Friday.  We now have added more weight (~2" of SWE ) and 16 inches of snow.  This will lead to interesting avalanche co