Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Regions
Snoqualmie Pass.
The Bottom Line: Light snow and wind will drive heightened avalanche danger at the highest slopes. Watch for fresh drifts, wind stiffened snow, and slippery old snow surfaces. Rain will fall at low elevations.
Snow and Avalanche Discussion
A variety of old snow surface exist from weak facets on shaded slopes to very firm, slick crusts on sunny slopes. New snow may not stick well to some of these interfaces. Check the bond at the new/old snow interface. Watch for slipping on firm crusts especially in terrain where a fall could have consequences or where stopping a fall may be difficult.
Check out the Regional Synopsis tab for more details.
A stout crust form near Snow Lake Divide. New snow will fall on slick old surfaces. Photo: Chip Daly