MINNEAPOLIS (AP) - Spinouts and accidents complicated the morning commute on slippery highways and interstates in the Twin Cities metro.

Forecasters are expecting another inch or two of snow on top of more than 4 inches on the ground in Minneapolis. Snow should taper off by Tuesday afternoon. The cities of Minneapolis and St. Paul imposed a snow emergency beginning Tuesday night, triggering parking restrictions so that plow crews can more easily maneuver the streets.

Snow totals are highest in south-central Minnesota where more than 12 inches was reported in Mapleton, 11 1/2 in Fairmont and 8 in Mankato.

Minnesota Department of Transportation engineer Scott McBride says hundreds of plow drivers worked extended shifts to clear 12,000 miles of roadway.