A winter storm is expected to drop 12-18 inches of snow on Northwestern Wisconsin, making travel nearly impossible in the morning Wednesday, Nov. 27.

Northeastern Minnesota snowfall predictions range from as low as 3 inches to as high as 12 inches, depending on the location from Tuesday night into Wednesday as a winter storm takes aim at the region.

The National Weather Service in Duluth extended its winter storm warning to include parts of Northeastern Minnesota Tuesday morning. Northwestern Wisconsin is also in a winter storm warning.

A winter weather advisory has been issued for northern St. Louis County as well as Itasca, Cass, Todd, Douglas (Minnesota) and Pope counties.

The amount of snowfall expected in Minnesota and the Twin Ports still remains uncertain, the Weather Service reported Tuesday evening, though confidence has increased in the forecast for the Twin Ports area.

Snow is expected to start late Tuesday evening, with the heaviest snow expected from early Wednesday morning to about mid-morning.

The storm could significantly affect Thanksgiving holiday travel plans, the Weather Service cautioned.

"Travel may be difficult to nearly impossible Wednesday morning in northwest Wisconsin," the Weather Service said. "If you can work remotely, plan to work from home on Wednesday to avoid traveling Wednesday morning."

Areas of blowing snow will likely reduce visibility on Wednesday morning, the Weather Service reported. Heavy snow and strong winds could also lead to power outages.

The National Weather Service has a new, experimental tool on its website that allows users to plot a door-to-door route on a map and indicate when they plan to travel. The map then gives predicted road and weather conditions for that route and time frame.

Flooding along parts of the south shore of Lake Superior is possible as strong north winds are expected. The largest waves and strongest winds are expected to be between Oak Point and Saxon Harbor, Wis., the Weather Service reported.

Wind gusts could be over 50 mph on the south shore of Lake Superior with waves between 10-18 feet. Conditions should be worst Wednesday morning.

The Weather Service said lakeshore flooding along the south shore could be similar to the late October storm this year. The Weather Service warns people to stay off break walls and other shorelines structures.

The storm track could still change, according to the Weather Service