The general avalanche hazard is MODERATE above 7,500 feet. There, skiers and riders could trigger recently developed wind slabs in steep, wind loaded terrain. Warming temperatures may increase the sensitivity of these slabs to human triggers on sunlit aspects in the afternoon. On northerly aspects above 9,000 feet, these surface slabs also have the potential to step down and release deep persistent slabs failing near the ground. More substantial triggers, such as snowmobiles or large groups, may be needed to directly trigger these deep persistent slabs. Below 7,500 feet, the general avalanche hazard is LOW and avalanches are unlikely.
Above 7,500 feet, recently developed wind slabs lie upon a variety of sliding surfaces which include near surface facets, surface hoar, sun crusts and wind pack. Backcountry travelers could trigger these slabs to depths of one to three feet in steep, wind loaded terrain.
Weak, faceted snow exists at the base of the snow pack on shaded aspects above 9,000 feet. Some potential remains for backcountry travelers, especially those on snowmobiles, to trigger dangerous, full depth hard slab avalanches on this persistent weak layer. Previous tracks should not be interpreted as a sign of stability.
( Discussion is generated from the previous day's afternoon forecast. )Expect mostly clear skies on Thursday as a ridge of high pressure remains over the area. Overnight lows in the mountains will be near 10 before rising into the upper 20s during the day. Westerly ridgetop winds will range from 15 to 25 miles per hour.Above 7,500 feet, the general avalanche hazard is expected to be MODERATE on Thursday. Backcountry travelers venturing into steep, wind loaded terrain could trigger recently developed wind slabs one to three feet in depth. On steep, northerly aspects above 9,000 feet, these slabs might be able to step down to weak, faceted snow near the base of the snowpack. Warming temperatures may increase the sensitivity of these slabs to human triggers on sunlit aspects in the afternoon. The general avalanche hazard is expected to be LOW below 7,500 and avalanches are unlikely.
