Winter Weather Advisory

* WHAT...For the Winter Weather Advisory above 6000 feet, moderate snow expected. Total snow accumulations 2 to 8 inches, with up to 16 inches near Lassen Volcanic National Park. Winds gusting as high as 40 mph. For the Winter Storm Watch above 4000 feet, heavy snow possible. Total snow accumulations between 1 and 2 feet above 5000 feet possible, with up to 3 feet at the highest peaks. Total snow accumulations of 4 to 8 inches between 4000 feet to 5000 feet, with up to 12 inches at 5000 feet. Winds could gust as high as 50 mph.

* WHERE...For the Winter Weather Advisory, Northern Sierra above 6000 feet, including Highway 50, Interstate 80, State Route 4, State Route 108, Southern Cascades above 6000 feet, including Lassen National Park. For the Winter Storm Watch, elevations above 4000 feet in the Sierra Nevada and southern Cascades.

* WHEN...For the Winter Weather Advisory, from 4 PM this afternoon to 10 PM PST Monday. For the Winter Storm Watch, from Tuesday evening through early Friday morning.

* IMPACTS...Snow covered roads, travel delays, and chain controls possible this afternoon into Monday. The hazardous conditions will impact the Monday morning and evening commutes. Travel could be very difficult to impossible Tuesday night through early Friday morning. Gusty winds could bring down tree branches and significant reductions in visibilities.

* ADDITIONAL DETAILS...Snow levels 6500 to 7500 feet today, dropping to around 5000 to 6000 feet Monday. Heaviest snow is expected late tonight into Monday morning. Lull in activity expected on Tuesday, followed by a colder, stronger system by mid-week. Snow levels 3500-4500 feet Tuesday night, rising to around 4500-6000 feet Wednesday. Heaviest snow is expected Wednesday afternoon into the overnight hours, with snowfall rates 1-2+ inches per hour.