NORTH CENTRAL WASHINGTON — The winter weather advisory issued Monday is expected to drop 6 to 11 inches of snow mainly along the southern Cascade ski areas.

This low pressure system off the central Oregon coast is packing plenty of moisture that will aff ect Oregon and southern Washington mountainsides.

Places like Crystal Mountain Resort have picked up more than six feet of snow this month, and for 87 consecutive days their lifts have opened ahead of schedule. Expected snowfall amounts Monday through Thursday are 5 to 9 inches at Mount Baker; 6 to 12 inches at Stevens Pass; 8 to 14 inches at Alpental at the Summit at Snoqualmie; 8 to 16 inches at Crystal Mountain; and 8 to 15 inches at White Pass.

The total snowfall this season is 397 inches at Mount Baker Ski Area; 246 inches at the Summit at Snoqualmie; 298 inches at Stevens Pass Resort; 275 inches at Crystal Mountain Resort; 299 to 334 inches at White Pass Ski Area; and 315 inches at Whistler Blackcomb Resort in British Columbia.

The Loup Loup Ski Bowl is open Wednesday, and Friday to Sunday from 9 a.m. to 3:45 p.m. with a 42-inch base (1 to 2 inches new snow). The Hurricane Ridge Ski and Snowboard Area in Olympic National Park is open Saturday and Sunday from 10 a.m. to 4 p.m.