Quick report
- Cracking
- Observed
Below treeline the weak layer can be impacted by a person or snowmachine. Places with a deeper snowpack make it harder to collapse and shallower areas easier. The 1/5 weak layer hasn't increased in hardness in any significant way below treeline on northerly slopes. Human-triggered avalanches remain a concern and would be more sensitive in places shallower than about 150cm, but still possible in snowpacks greater than 150cm, as a rough rule of thumb.
I got one collapse near Horse Ranch Park while booting around in a 130cm snowpack that was sometimes supportive to boots.Weather
Mild air temps and increasing clouds in the afternoon.
Snowpack
I dug several profiles on northerly slopes around the Kebler corridor from 8800 - 9800 feet. The thicker the slab above the 1/5 weak layer the harder the test results...all locations produced propagating results (see images). Sites about 150cm or more produced moderate to hard results and locations in the 130cm range produced easy to moderate results.
Sunny slopes below and near treeline moistened today and will have a crust tomorrow, about 1 - 2cm thick. Rollers balls trickled down many sunny steep slopes.
Avalanche
- Size
- D1.5
- Type
- SS
- Count
- 5
- Aspect
- NE
- Trigger
- N
- Elevation
- 10000 ft
I observed a few more recent avalanches from late in the storm. Most were below treeline along the corridor, one on southwest aspect of Owen near treeline, and another in northerly alpine terrain of East Beckwith. Lots of older avalanche activity from early in the storm was barely decipherable in alpine terrain.