MINNEAPOLIS (AP) - The State Patrol is advising no unnecessary travel in south-central Minnesota on Wednesday afternoon.

The Patrol says heavy snow and high winds are expected to result in zero visibility at times.

Snow already has been accumulating on the roads in western Minnesota. The National Weather Service is forecasting 6 to over 12 inches of snow by Thursday across much of southern Minnesota into western Wisconsin, including the Interstate 90 corridor, though the storm is expected to track mostly south of the Twin Cities.

Cities expected to see some of the heaviest accumulations include Rochester in Minnesota and La Crosse in Wisconsin.