Toured south-facing slopes below Pineapple Pass, commonly known as "F" bowl, then regained Bryant Col via Denny Creek and Melakwa lake. Descended Bryant couloir to return to Source Lake.
Jan. 23, 2017, 2 p.m. PST
Weather: Calm winds and mostly clear skies throughout the day. We observed significant solar effects on South aspects and increasing near-freezing temperatures as the sky fully cleared between 10:30 and 12:00 while leaving the Denny Creek drainage.
Snowpack: Observed very thick, supportable rain crust on all aspects and elevations below ~15-60cm of consolidating storm snow. Snow depths were variable, with significant transport at higher and more exposed elevations. Solar exposed S-SW aspects were rapidly consolidating and producing significant wet point releases and increased sensitivity to ski triggering in exposed areas. N-NE aspects at higher elevations had less coverage, and appeared non-reactive to ski cuts. N-NE aspects above Source Lake in "Big Trees" area and below Bryant Couloir had more coverage and were sensitive to skier triggering in locally steeper areas.
Avalanches: We triggered two small ~D1-1.5 releases of consolidating storm snow on the thick crust on exposed, steeper, S-facing areas between 3.8k & 4.4k around 11:00 as solar effects increased. We subsequently observed several larger (~D2) natural releases from the S and SW aspects of Bryant Peak while gaining Bryant Col above Melakwa Lake. At ~4.2k below the Bryant Couloir we triggered a larger slide, ~D2 30-60cm depth 15-20m wide running on the ice crust in a locally steeper terrain feature. This entrained significant additional snow into a gully, which a skier was able to exit to avoid being caught. See attached photo.
Observation by Alex Ford
Did you see any avalanches? Yes
Did you trigger any avalanches? Yes
Was anyone caught in an Avalanche? No