School districts are closing ahead of the winter storm system forecasted for Wednesday.

Fulton, Cobb, Paulding, DeKalb and Carroll county schools announced their systems are closed. View a full list of school closings and delayed openings here .

Snow was blowing across highways in the north Georgia mountains and ice coated cars in some of metro Atlanta's northern suburbs as the latest winter storm struck the state Tuesday.

The National Weather Service said the greatest threat of a wintry mix of rain, sleet and snow early Tuesday was generally north of Atlanta.

Parts of the north Georgia mountains were under a winter storm warning, where forecasters said snow and sleet accumulations of as much as 6 inches were possible.

In Bartow County, the sheriff early Tuesday morning advised motorists to avoid traveling on any roads in the county. Authorities said there were five wrecks on Interstate 75 in the county.

In northeast Cobb County, ice coated vehicles in neighborhoods on Sweat Mountain, where some roads reach elevations above 1,500 feet.

Tags: sleet, snow, ice, north Georgia, weather, weather advisory