The season's first snowstorm, expected to begin in the wee hours Monday, promises to bring heavy accumulations by the end of the day.
While morning commuters may encounter only an inch or so, by afternoon 6 to 10 inches could be fouling travel, said the National Weather Service.
"This is one of the those snow bands that will be split north and south of the metro," said meteorologist Paul Douglas, whose column runs in Star Tribune. "The northern suburbs can get 8 to 10 inches and the southern metro 3 to 5 inches," he said. "The area from Rochester to Red Wing may only see freezing rain."
And the heavy snow will be followed by an extended bout of midwinter-type lows for the rest of the week, with Tuesday dropping to just 9 degrees.
The latest winter storm warning for most of central Minnesota and west-central Wisconsin begins early Monday and lasts for hours. "The snow will be most intense during the early afternoon Monday, with 1- to 2-inch-per-hour snowfall rates," the weather service predicted.
Northeast winds gusting to 25 miles per hour could cause drifting and blowing snow.
The entire Twin Cities area is covered by the warning, which begins about 3 a.m. Monday.
Andy Lahr, a meteorologist with the NWS in Chanhassen, said it could be "the most significant fall storm since Halloween in 1991," which dropped 28 inches.