LOS ANGELES (CBSLA.com) — Mammoth Mountain has set a record for monthly snowfall, with 246 inches of snow falling at Mammoth’s Main Lodge since Jan. 1, the resort announced Tuesday.

The record became official this week after a series of storms dumped as much as 138 inches of snow on the lodge in less than seven days.

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Lifts were temporarily closed during the storm on Sunday due to whiteout conditions and lifts that were buried in deep snow.

A half-dozen lifts were reopened Monday. All 28 lifts were open Tuesday, the resort said.

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The resort urged visitors to “get out there and have the best pow day of your life,'” while also cautioning visitors to “practice safe riding habits in powder — always ride with a friend, avoid the base of trees and try to land on your feet if you are going to fall.”

The previous monthly snowfall record was 209 inches, set in December 2010.

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Chains or snow tires were required for vehicles driving through parts of the Eastern Sierra.