Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
Surface slabs up to two feet in depth could be human triggered in steep, windloaded avalanche starting zones and have the potential to step down to depths of four feet.
Weak layers of faceted snow persist within the snowpack. Slab avalanches could be human triggered on steep, unsupported slopes, and have the potential to step down to deeper layers. These slabs can seriously injure and kill people, and are most likely to be unstable on slopes that were windloaded by west to northwest winds during our most recent storm event. Skiers or snowboarders who venture into cliff areas or extreme terrain, and snowmobilers who are high marking steep slopes are the most likely potential triggers.
Surface slabs up to two feet in depth could be human triggered in steep, windloaded avalanche starting zones and have the potential to step down to depths of four feet.
A northwesterly flow continues over the area. Some light snowfall is possible tonight with accumulations of less than an inch. On Monday skies will be mostly cloudy with a slight chance of scattered snow showers. Temperatures will rise into the 20s. Winds will be westerly at 15 to 25 miles per hour.Weak layers of faceted snow persist within the snowpack. Slab avalanches up to two feet in depth could be human triggered on steep slopes and have the potential to step down to depths of four feet. These slabs are most likely to be triggered by high marking snowmobilers in steep walled cirques and basins and skiers or riders who venture into cliff areas and very steep wind loaded avalanche starting zones. The general avalanche hazard is expected to be MODERATE at the mid and upper elevations and LOW below an elevation of 7,500 feet.