As much as 4 feet (1.2 meters) of snow is expected to fall by the end of the weekend in the upper elevations around Lake Tahoe, and as much as 6 feet (1.8 meters) in more remote parts of the Sierra to the north and south.

A 70-mile (112-kilometer) stretch of eastbound U.S. Interstate 80 was closed “due to zero visibility” from Colfax, California to the Nevada state line, transportation officials said. Chains were required on much of the rest of I-80 in the mountains from Reno toward Sacramento.

A stretch of California Highway 89 also was closed due to heavy snow between Tahoe City and South Lake Tahoe, California, the highway patrol said.