Low pressure moved through the Ohio River Valley late on the 1st and tracked into New York early on the 2nd. A secondary low pressure began to develop early on the 2nd in the vicinity of Chesapeake Bay. By sunrise the secondary low pressure had become dominant and moved across Buzzards Bay and through the Gulf of Maine. The initial wave of precipitation moved in with strong warm air advection aloft late on the evening of the 1st. Early in the morning on the 2nd above freezing air and drying out of the column allowed some of that precipitation to change over to sleet, freezing rain, and rain. As the storm deepened in the Gulf of Maine, mid levels cooled and precipitation flipped back to snow for several hours before ending around midday.

Winter Storm in NORTHERN FRANKLIN, MAINE
From 02-JAN-21 00:00:00 to 02-JAN-21 14:00:00 (EST-5)
Reported by: Trained Spotter

Snow moved into the western Maine mountains just around midnight on the 2nd. Light to moderate snow continued into the early morning hours of the 2nd before tapering off. Precipitation was predominantly snow but some sleet or freezing rain mixed in at times. Towards mid-morning steady snow moved back into the area and continued until ending as some wraparound light snow. Snow totals ranged from 6 to 10 inches.

Winter Storm in CENTRAL SOMERSET, MAINE
From 02-JAN-21 00:00:00 to 02-JAN-21 15:00:00 (EST-5)
Reported by: Trained Spotter

Snow moved into the western Maine mountains just around midnight on the 2nd. Light to moderate snow continued into the early morning hours of the 2nd before tapering off. Precipitation was predominantly snow but some sleet or freezing rain mixed in at times. Towards mid-morning steady snow moved back into the area and continued until ending as some wraparound light snow. Snow totals ranged from 6 to 10 inches.

Winter Storm in KENNEBEC, MAINE
From 02-JAN-21 01:00:00 to 02-JAN-21 15:00:00 (EST-5)
Reported by: Trained Spotter

Snow moved into the Capitol Region just after midnight on the 2nd. Light to moderate snow continued into the early morning hours of the 2nd beforemixing with sleet and freezing rain. Towards mid-morning steady snow moved back into the area and continued until ending as some wraparound light snow. Snow totals ranged from 5 to 7 inches.

Winter Storm in SOUTHERN SOMERSET, MAINE
From 02-JAN-21 01:00:00 to 02-JAN-21 15:00:00 (EST-5)
Reported by: Trained Spotter

Snow moved into west central Maine just after midnight on the 2nd. Light to moderate snow continued into the early morning hours of the 2nd before tapering off or mixing with sleet and freezing rain. Towards mid-morning steady snow moved back into the area and continued until ending as some wraparound light snow around midday. Snow totals ranged from 6 to 10 inches.

Winter Storm in NORTHERN OXFORD, MAINE
From 02-JAN-21 00:00:00 to 02-JAN-21 14:00:00 (EST-5)
Reported by: Trained Spotter

Snow moved into the Mahoosuc Mountains around midnight on the 2nd. Light to moderate snow continued into the early morning hours of the 2nd before tapering off or mixing with sleet and freezing rain. After sunrise steady snow moved back into the area and continued until ending as some upslope enhanced snow showers around midday. Snow totals ranged from 5 to 7 inches.

Winter Storm in SOUTHERN FRANKLIN, MAINE
From 02-JAN-21 01:00:00 to 02-JAN-21 14:00:00 (EST-5)
Reported by: Trained Spotter

Snow moved into the western Maine mountains just after midnight on the 2nd. Light to moderate snow continued into the early morning hours of the 2nd before tapering off and mixing with sleet and freezing rain. After sunrise steady snow moved back into the area and continued until ending as some wraparound light snow around midday. Snow totals ranged from 5 to 7 inches.