"Heavy coastal and mountain rain may lead to instances of flash flooding, particularly over the windward foothills of the southern Sierra Nevada below 8,000 feet, where excessive rainfall may cause land/rock/mudslides," the NWS said in a forecast Tuesday morning.

The National Weather Service says Michigan's Lower Peninsula could see a snowy Thanksgiving weekend as temperatures fall to more seasonal highs. Snow likely won't start in southern Michigan until Thanksgiving day, but the Upper Peninsula could see snow accumulations starting Sunday night into Monday, the weather service said.

Meteorologists with the National Weather Service have been tracking the formation of a storm system that is expected to bring snow across the lower Great Lakes and into the Ohio River Valley. For Michigan, this system could impact the I-94 corridor during the Thanksgiving travel window.

WEDNESDAY Early Thanksgiving travel Wednesday will feature a mixed bag. The morning should start quiet with highs near 40°. In the afternoon, a weaker shortwave system sets up along the state line and looks to bring some rain / snow mix into Wednesday night.

Thanksgiving is almost here, but so is a possible winter storm. Here’s everything you need to know about the upcoming weather and how it could impact travel, the Macy’s Parade, and

Snow is headed to the Midwest and the West ahead of Thanksgiving, while rain will target the East Coast on Thanksgiving Day.

The WCCO Next Weather team says no big storms are expected in Minnesota for Thanksgiving week, but temperatures in Minneapolis-St. Paul and beyond are expected to feel quite winter-like going into the holiday weekend.

For the latest news on snow, storms and Thanksgiving travel, view USA TODAY's updates for Tuesday, Nov. 26. Winter weather could cause travel delays and disruptions this week as millions of people hit the roads and skies for Thanksgiving.