LOS ANGELES (AP) — A blizzard warning has expired but the National Weather Service says whiteout conditions are still possible around Lake Tahoe where 3 feet of snow already has fallen and winds gusting to nearly 150 mph shut down Interstate 80.

A winter storm warning remains in effect until 10 a.m. Saturday around Tahoe where up to another 20 inches of snow is possible.

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Four feet already has fallen at Mammoth Mountain south of Yosemite National Park. A 146 mph gust of wind was recorded Thursday night atop Squaw Valley resort on the north end of Tahoe.

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Three feet of snow was measured at the Mount Rose ski resort near Reno.

I-80 reopened Friday morning but chains or snow tires are required west of the California-Nevada line. School was canceled throughout the Reno-Tahoe area and state offices are closed.

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