* WHAT...Heavy snow. Snow accumulations between 18 to 30 inches in the Tahoe Basin, highest on the west shore, and much of Alpine County. This includes Tahoe City, Homewood, South Lake Tahoe, Carnelian Bay, Hope Valley, and Markleeville. Sierra snow accumulation of 2 to 5 feet. Winds gusting 35 to 45 mph in valleys, with Sierra ridge gusts over 100 mph. * WHERE...Greater Lake Tahoe Area. * WHEN...From Sunday evening through Wednesday evening. * IMPACTS...Travel could be very difficult to impossible with periods of white out conditions. Very strong winds could cause damage to trees and power lines. * ADDITIONAL DETAILS...The highest snowfall rates will be late Monday afternoon through Tuesday afternoon.