Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1
The primary layer of concern is faceted snow resting on the hard October rain crust. This persistent weak layer exists on westerly through northerly to easterly aspects above 9,000 feet. On mostly shaded slopes, this crust can dip below 9,000 feet. Southwesterly ridgetop winds have ranged from 15 to 25 miles per hour over the past 24 hours, which has transported snow and stiffened up surface slabs. In steep, avalanche prone terrain at the higher elevations, backcountry travelers might be able to trigger one of these isolated surface slabs to depths of 6 to 18 inches.