Quick report
- Cracking
- widespread
- Collapsing
- Observed
The danger ramped up through the day, reaching very dangerous conditions by early to mid-afternoon. Late morning storm totals were around 12-14 inches, we got small cracks continuously, and remote triggered a few small avalanches on steeper slopes that broke on the November 18 facet layer (not the storm interface). Early afternoon storm totals rose to around 16-18 inches, collapses began rumbling across meadows and open features, and avalanches grew in size and breadth - we triggered several that broke around 24 inches deep, wrapping multiple features in cascades of sympathetic avalanches.
Weather
High snowfall rates all day. The storm dropped around two feet of heavy dense snow by sunset. We experienced mostly light wind.
Snowpack
Very touchy, dangerous conditions developed by the afternoon. The storm snow was heavily rimed, dense, and right side up within the storm, but the two feet of new snow overwhelmed the mid-November weak layer.
Avalanche
- Size
- D2
- Type
- SS
- Count
- 3
- Aspect
- N
- Trigger
- AS
- Elevation
- 10200 ft
Triggered a dozen or more avalanches on northerly-facing slopes below treeline. Some we triggered intentionally on small test slopes or from above, some we remotely triggered from a couple hundred feet away.