UNDATED - Road conditions have been deteriorating throughout the day.

The Minnesota Department of Transportation is advising no unnecessary travel due to heavy snow on the roads, blowing snow, and poor visibility in Sauk Centre, Long Prairie, Little Falls, and Garrison.

Also, road conditions are snow covered and slick throughout most of Central Minnesota. MnDOT snow plow operators are out working on the roads.

The wintry storm that swept the northern Plains states Friday has sent cars and semitrailers into ditches along Interstate 94 in western Minnesota.

Jerimiah Moerke with the Minnesota Department of Transportation says snow and high winds have made it difficult for vehicles - especially big rigs - to get up hills on the interstate around Dalton. Officials say at least one semitrailer jackknifed on I-94 between Fergus Falls and Evansville.

Minnesota State Patrol trooper Jesse Grabow says low visibility, ice, snow and slush are the main causes for crashes and spin outs on the interstate.

The Meeker County Highway Department is also advising no travel after sunset as plow crews will not be out after sundown.

Check for current road conditions at 511mn.org, or call 511.