Dense fog advisory in effect for much of the Northland

The National Weather Service has issued a dense fog advisory for much of the Northland, including the Twin Ports, until midnight. The thick fog and wet roads may freeze later tonight, causing hazardous driving conditions.

Areas included in the advisory include Duluth, Superior, the North Shore, Grand Rapids, Cloquet, the Interstate 35 corridor and all of Northwestern Wisconsin.

Visibilities may drop to less than a quarter-mile at times. Thick fog has been sharply reducing visibilities so far this evening over the hill in Duluth; visibility was just an eighth of a mile at the Duluth airport at 4 p.m.

Temperatures are forecast to fall into the teens and 20s across the Northland tonight, which may lead to icy roads as sleet, slush and puddles freezing. Use caution if out driving tonight and Saturday morning.

Heavy snow possible

Snow is forecast to develop across parts of the Northland tonight. The heaviest snow is expected north of the Iron Range, where a winter weather advisory is in effect for northern St. Louis, northern Itasca and Koochiching counties - including Ely, International Falls and Bigfork - until 4 p.m. Saturday.

The Weather Service is forecasting snowfall of 3 to 7 inches in the advisory area. Lesser snowfall of 1 to 2 inches is expected for the Iron Range, with about an inch of snow possible in the Twin Ports.

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