Snow in southern Minnesota is creating difficult driving conditions, especially along Interstate 90. The State Patrol warned would-be drivers in southeastern Minnesota to avoid unnecessary travel, given the poor visibility.

On Saturday evening, icy conditions hit I-90 in Rock, Noble and Jackson counties. The heaviest snow fell near the South Dakota border, said Lt. Tiffani Nielson, the State Patrol’s public information officer, on Twitter.

Troopers responded to vehicles off the road and a few rollovers, she said. “Fortunately no serious or fatal.”

The National Weather Service has issued a winter weather advisory through Sunday morning for parts of southern Minnesota — predicting accumulations of 3 inches along Hwy. 14 from Mankato to Owatonna and 6 to 7 inches along and south of I-90.

Snowfall will drop off quickly north of Hwy. 14, according to the weather service, which was “not expecting anything measurable north of Interstate 94.” The wind could pick up overnight, creating patchy, blowing snow.

Statewide, snowfall so far this year has been sparse. According to U weather Prof Mark Seeley, it was Minnesota’s driest January since 2008.