By National Weather Service

Low pressure near the British Columbia coast will direct a plume of moisture into the Sierra and Western Nevada this weekend.

Light rain and snow may reach the Sierra as early as Friday night, with the heaviest precipitation occurring late Saturday night and Sunday.

Snow levels Saturday will start between 7,000 and 8,000 feet, then rise to near 10,000 feet by Sunday. Light snow accumulations are possible in the Sierra above 8,000 feet Saturday and Saturday night.

As a front moves into the area Sunday, heavy rain is likely to affect the northern Sierra from the Lake Tahoe Basin north into Plumas and Lassen counties. Rainfall amounts up to 1 inch are possible, with potential for higher amounts along and west of Highway 89.

Gusts over the Sierra ridges could approach 100mph during this time.

A colder system may reach the area Monday night and Tuesday, with a chance for snow levels to lowering to 7,000 feet or less across the Sierra and Western Nevada.