From the Methow River, skinned up a NE aspect through thick trees about 350' to flats, traversed N-NW to a less densely treed area for a quick descent.
Feb. 10, 2017, 5 p.m. PST
Weather: OVC, -0.5 C air temp, calm, NO/no precipitation
Snowpack: HS 80 cm, boot pen 80 cm, ski pen 30 cm. There was a distinct crust throughout the terrain; hoping to return and complete a full profile tomorrow for more info.
Area Description: Methow Valley, NE facing slope on the W edge of the valley, 2000 ft
Avalanches: Signs of instability under heavy tree cover were limited to Q2 releases between skin turns, however, widespread whumphing was observed as soon as we entered more sparse forest. We were almost finished with our descent (on a logging road with 35 vert ft to go) when we encountered an 8m x 8m section slope lacking trees with an est. slope angle of 30 degrees. Descending this final stretch in skins on the flat road below the slope triggered the D1 slab, debris came to a halt on the flat road below. Continuing a few more steps triggered another D1 slab on an adjacent area of slope with identical characteristics.
Observation by Alexander Vasarab
Did you see any avalanches? Yes
Did you trigger any avalanches? Yes
Was anyone caught in an Avalanche? No