Gusty winds and drifting snow continue to impact road conditions along the northern Rocky Mountain Front as Highway 89 remains closed from Fairfield to St. Mary.
A Blizzard Warning has been issued for counties along the northern Rocky Mountain Front to Lewis and Clark County.
The Montana Department of Transportation reports that as of 6:30 p.m., severe driving conditions are in effect for Highway 80 from Fort Benton to Geraldine while most areas around Fort Benton have reduced visibility.
Severe driving conditions are also in effect to the west of Havre along Highway 2 and along Highway 213 north of Cut Bank.
Interstate 15 from the Canadian border to the intersection of Highway 44 is snow and ice covered while Secondary Highway 358 between Valier and Cut Bank is closed due to snowdrifts.
The Port of Whitlash did not open on Sunday because of drifted roads and will remain closed on Monday until county roads have been plowed.