Montana is gearing up for its second winter storm in less than a week, and it's expected to create big problems for travelers.
The National Weather Service has issued Winter Storm Warnings for all of north-central Montana through Friday.
The warning means significant amounts of ice and snow are likely, which will create major travel disruptions.
Road crews will have a tough time keeping up with the volume of snow, so some highways in central and northern Montana could become impassable at times.
Major changes were made to the overall snow forecast on Wednesday afternoon.
STORMTracker meteorologist Mike Rawlins says a wintry mix of freezing rain and sleet is now expected along Interstate 15 from near Conrad to Great Falls to Helena, which will cut down on snow totals.
Great Falls is now expected to only pick up 1-3 inches of snow through Friday. However, freezing rain could put down up to .05" of ice initially, creating treacherous travel conditions on Thursday.
Farther north and east, the storm is still expected to drop 12"+ of snow on the Hi-Line and across central Montana.
Snow will begin to develop over northern parts of the state on Wednesday night. By Thursday morning, a wintry mix of freezing rain, sleet, snow, and even rain is expected to form along I-15.
As colder air moves in aloft, this wintry mix will transition over to all snow throughout the region by late Thursday. Snow is predicted to continue into Friday morning before tapering off late Friday afternoon.
Drivers should be prepared for extreme winter driving conditions with snow and ice coating most roads.
Travel could become nearly impossible at times due to the amount of snow coming down, along with the potential for icing farther west near I-15.