More wind and more snow have really ramped up the avalanche hazard. A really good day to make conservative choices or head to the ski hill.
Weather Forecast
An upper trough over the interior moves southeastward bringing light to moderate precipitation this afternoon into tomorrow. An upper ridge forms Wednesday night, snow amounts are expected to be light Thursday.
Snowpack Summary
20cm of new moderate density snow over yesterdays very light upper 30cm. This sits on 60cm of settling snow from the past week. The Nov 6 Cr varies in depth from 140 to 200cm. Profile yesterday on Mt Fidelity, 1900m, 35deg, N asp, HS 220cm, CTE (SC) down 16 on PP 3.0, CTE (RP) and RB4 (WB) down 27 on PP 2-3, CTM-H (SP) down 68 on DF 1.0.
Avalanche Summary
1 Natural size 3.0 slab on Mt Green.4 Natural size 2.5 slab release in the highway corridor.
Confidence
Forecast snowfall amounts are uncertain on Wednesday
Problems
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.
Storm Slabs
Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.