The metro area is under a winter storm warning from this morning until 6 a.m. Sunday, with the possibility of 10-plus inches of snow by Sunday.
At 11 a.m., about 1 inch of snow was reported in Chanhassen.
The forecast calls for up to 8 inches of snow by midnight tonight, with sleet possible in the afternoon.
After midnight, there is a possibility of 1-2 more inches of snow, and a mix of snow and sleet is likely in the Twin Cities area.
The snow began falling this morning across a large part of western Minnesota and quickly spread across the rest of the state. It was forecast to become heavy as the day went by, with accumulations of 6 inches in many areas to as much as 16 inches in some parts of east-central and northeastern Minnesota, the National Weather Service said.
The Minnesota Department of Transportation reported difficult driving conditions by midday across many parts of the state, stretching from south to north and west to east, including the Twin Cities. Interstate 94 between the downtowns of Minneapolis and St. Paul was moving very slowly, with at least one crash in each direction.
The snow was mixing with sleet along the Interstate 90 corridor across southern Minnesota. Visibilities were down to a quarter mile in some areas due to winds gusting in the 20 mph range.
By midday, snowfall amounts between 1 inches and 3 inches were common, including the Mankato, Faribault and Twin Cities areas.