A powerful winter storm system moving across the Great Lakes and Northeast is bringing snow and ice, frigid temperatures and possible whiteout conditions.

The winter weather this weekend caused travel problems during the busiest time of year. On Sunday, more than 10,000 flights were delayed nationwide, according to the flight tracking website FlightAware. On Monday, the disruption was less severe, with less than 500 flights delayed in the U.S., according to the site.

A storm is expected to bring rain and snow to the Los Angeles area this weekend, with gusty winds and possible flooding possible in burn scar areas, forecasters said.

Lake effect snow, intense rain and chilly temperatures dominate the forecasts for different parts of the U.S., before and after the new year arrives.

An updated winter weather advisory was issued by the National Weather Service on Tuesday at 10:05 p.m. EST in effect until Wednesday at 7 p.m. EST for Emmet, Cheboygan, Leelanau, Benzie, Grand Traverse,

The watch was in place for Fayette Ridges. "The Winter Storm Watch has been replaced. Please see the latest information from NWS Pittsburgh PA on this developing situation," adds the National Weather Service.

A major winter storm that blasted Minnesota on Sunday is still impacting travel conditions on Monday. Follow live updates.

Authorities closed State Route 2 between Cedar Springs, 3.3 miles east of Newcomb’s Ranch, and State Route 138 on Christmas Eve, according to the California Department of Transportation.