These are the crystals that help avalanches run.
Hoar provides the ball bearing slip that heavy weighted snow can slide on.
Hoar forms during a cold period of weather.
Hoar can form in the alpine or at sea level.
During the heavy rainfall event presently occurring one inch of rain translates into a foot of snow 2.54 cm x 12 in metric
Today the freezing level is about 5000 feet Major Snow avalanche situation above and below that for run-outs chutes gullies walls that shed to lower levels.
Below 5000 ft it is raining rain is percolating into the snow pack it will eventually freeze later this will provide a surface for snow slip more if it clears and hoar forms.