Northern San Juan
AvalancheAnn Mellick Bill Nalli · Feb 17, 2020 · Northern San Juan
Weather
Variably cloudy to begin, turning mostly sunny after 1:30 pm. Generally cool, with a stiff northwest wind above treeline.
Snowpack
Our most recent storm only brought a few inches of new snow: insufficient to change the snowpack much. However, persistent northwest winds have blown strong enough to modestly load lee easterly slopes above treeline. Newly-formed east facing cornices proved touchy, but did not trigger slides on the slopes below when they failed. Yesterday's snow fell on a mostly stable snowpack, though we did see a couple small slides in the new snow.
Avalanche
A few small (R1D1) slides ran in the new snow on easterly terrain above treeline in the past 24 hours.