Snow began falling across the Twin Cities just before 4 a.m., quickly turning wet and heavy and arriving in time to foul up the morning commute.
A driver was pulled from the flames of a fully engulfed car near southbound U.S.169 and I-94 in Maple Grove around 5:15 a.m. Soon after, authorities shut down southbound 169 at 77th Avenue near the car fire.
Several spinouts and incidents were reported across metro area before sunrise.
As of 6:45 a.m., Metro Transit reported that the Northstar commuter rail line and the light-rail line were running on time. But about 17 percent of buses were running late, with an average delay of about 3 minutes.
A winter storm warning is in effect until noon with up six inches of snow possible. "Significant travel problems are expected as the heaviest snow arrives during rush hour," the warning from the National Weather Service said.
Safety officials are urging motorists to allow extra time to get to their morning destinations and prepare for slippery, messy roadways.
"Snow means slow down," Kevin Gutknechect, spokesman for the Minnesota Department of Transportation, tweeted at 5:30 a.m. Thursday. "Leave a little early today. Crews are out, give them room."
Temperatures in the Twin Cities held steady in the 20s overnight, but will drop sharply in the afternoon and evening.