A persistent weak layer near the base of the snowpack is still a concern in steep terrain above an elevation of 8,500 feet. The likelihood for a person to trigger a large slab avalanche on that layer is decreasing very slowly. However, some steep slopes may still be unstable. Due to the potential consequences of being caught in a large slab avalanche and the uncertainties associated with persistent weak layers, conservative terrain choices are warranted. Avalanches are unlikely below an elevation of 8,500 feet.
Humans could trigger persistent slab avalanches 2 to 4 feet in depth. These slabs are most likely to be triggered on northeast through north to northwest aspects and by larger triggers like snowmachines. Previous tracks on a slope may not be an indication of stability.
( Discussion is generated from the previous day's afternoon forecast. )Expect some breaks to occur in the cloud cover tonight and clearing skies after sunrise. Temperatures will be in the single digits above and below zero and will rise into the teens. Winds will remain light from the northwest.A persistent weak layer near the base of the snowpack is still a concern at the mid and upper elevations where the general avalanche hazard is moderate. The likelihood for a person to trigger a large slab avalanche on that layer is decreasing very slowly. However, some steep slopes may still be unstable. Due to the potential consequences of being caught in a large slab avalanche and the uncertainties associated with persistent weak layers, conservative terrain choices are warranted. Persistent slab avalanches up to 4 feet in depth are most likely to be triggered on east through north to northwest aspects between an elevation of 8,500 and 10,5000 feet. Avalanches are unlikely at the lower elevations.
