A January thaw featuring record-breaking warmth is set to become a distant memory as a nor’easter bears down on northern New England with the potential of more than a foot of snow in parts of the region.

Heavy snow warnings were posted for much of coastal and interior Maine on Sunday evening, with 8 to 13 inches of snow expected in the Bangor and Calais areas, and possibly 14 inches in Machias. Belfast was expected to get 5 to 11 inches.

Snow was forecast to start falling heavily in Bangor by late morning and continue into early Tuesday.

Northern Maine was not expected to be hit hard, with 2 to 3 inches of snow forecast for Caribou and 1 to 2 inches in Fort Kent, according to the National Weather Service.

Most of New Hampshire, and parts of Vermont were under a winter storm watch with snow expected early Monday.

In southern New Hampshire, accumulations of 8 to 14 inches of snow were expected by Monday evening, while Maine’s southern coast is expected to see 4 to 8 inches, said Butch Roberts of the National Weather Service.

The track of the storm puts the heaviest accumulations in southern coastal areas, with most of it falling during the day Monday and affecting the morning and evening commute.

Southern New England could get walloped as well. By day’s end, the storm could dump up to a foot of snow in Boston and Worcester.

With the heavy snow warning, forecasters say snow could fall at 1 to 2 inches an hour in some areas of Maine, New Hampshire and Massachusetts.

The wintry weather follows a decidedly springlike weather pattern in which much of the snow from December melted away.

In Portland, the temperature climbed to 61 on Tuesday as people ventured forth in shorts instead of coats. Also on Tuesday, highs in the 60s helped boost record voter turnout in the New Hampshire primary.