Was teaching a Capilano College ski touring course in Garibaldi Park (out of the Elfin Lakes) for the past 5 days (March 19-23). The storm system we are in right now dumped a meter of new snow since the 21st. The height of snow at the Elfin Cabin is probably over 5 meters (our best guess). SE winds and continuous moderate to heavy snow fall were the features of the previous 2 days. Today the temperature increased and by 3pm it was rain and sleet to 5000'.
Yesterday I ski cut a steep, treeline, NW aspect, lee side roll and it broke out as a 50-70cm deep slab running on the March 13 surface hoar.
Today in clearing weather we saw 2 size 2 slab natural avalanches both on the same N aspects that appeared to have run late in the storm on the March 13 Sh. Also today we dropped a 10 cubic meter cornice on a N aspect slope and it resulted in only a moist surface snow sluff. During a fairly brief clearing we got to see the alpine and it did not show any sizable natural avalanche activity.
As of this afternoon the Hazard at treeline in the Paul Ridge area was Considerable and the Stability was Fair. The new snow was rapidly stabilizing. But with the warming temps and rain this afternoon and evening I bet the stability and hazard is actively worsening. Seems the March 13 surface hoar on N aspects is the thing to watch. S aspects where only balling, with small point releases.
The Diamond Head road was dirt with a very little amount of slush for the last 2 km this afternoon.
Dave Sarkany, Ski Guide