DATE OF OBSERVATION: 02/01/2015
NAME: Zach Guy
ELEVATION: 9,900 – 11,500 ft.
AVALANCHES: 3 old persistent slab avalanches on North and East aspects above treeline, breaking below rock bands. D2 in size. Couldn’t see debris anymore, just crown remnants. Probably late December or early January slides.
WEATHER: Scattered clearing to few clouds by midday. Moderate west to northwest winds, probably gustier on ridgelines, with plumes off of high peaks.
SNOWPACK: Pole probing on north aspects near and below treeline felt mostly right-side up in the 4F to 1F range, with a slightly softer but not dramatic decrease in hardness near the ground. Near surface facets just below the new snow, which was only 2″ in this location. A few areas were trapdoor and fully faceted near treeline. We traveled over a good amount of terrain that likely hasn’t seen traffic and did not observe any signs of instability. Winds were scouring north aspects and forming sastrugi near treeline.