Low pressure approached late on the 18th...tracking south of the region from the overnight hours of the 18th into the morning of the 19th. An inverted trof extended north across the region from the low. An upper level disturbance also crossed the region. These features all combined to produce snow across northern and eastern Maine. Snow initially developed across Downeast and west-central portions of the region during the evening of the 18th. Snow expanded across the rest of the region through the remainder of the evening into the early morning hours of the 19th. Snow persisted through the morning of the 19th...tapering to snow showers during the afternoon. Storm total snow accumulations ranged from 3 to 6 inches across much of the region...with 2 to 4 inches along the Downeast coast.

Winter Weather in COASTAL HANCOCK, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 2 to 4 inches.

Winter Weather in COASTAL WASHINGTON, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Trained Spotter

Storm total snow accumulations ranged from 2 to 4 inches.

Winter Weather in SOUTHERN PENOBSCOT, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Trained Spotter

Storm total snow accumulations ranged from 2 to 5 inches.

Winter Weather in INTERIOR HANCOCK, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: COOP Observer

Storm total snow accumulations ranged from 2 to 4 inches.

Winter Weather in CENTRAL WASHINGTON, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Trained Spotter

Storm total snow accumulations ranged from 2 to 4 inches.

Winter Weather in CENTRAL PISCATAQUIS, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 3 to 5 inches.

Winter Weather in SOUTHERN PISCATAQUIS, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 3 to 5 inches.

Winter Weather in CENTRAL PENOBSCOT, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 3 to 5 inches.

Winter Weather in NORTHERN WASHINGTON, MAINE
From 18-DEC-21 19:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 2 to 4 inches.

Winter Weather in NORTHWEST AROOSTOOK, MAINE
From 18-DEC-21 21:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Trained Spotter

Storm total snow accumulations ranged from 2 to 4 inches.

Winter Weather in NORTHEAST AROOSTOOK, MAINE
From 18-DEC-21 21:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Trained Spotter

Storm total snow accumulations ranged from 3 to 6 inches.

Winter Weather in NORTHERN SOMERSET, MAINE
From 18-DEC-21 21:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Other Federal Agency

Storm total snow accumulations ranged from 3 to 5 inches.

Winter Weather in NORTHERN PISCATAQUIS, MAINE
From 18-DEC-21 21:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 3 to 5 inches.

Winter Weather in NORTHERN PENOBSCOT, MAINE
From 18-DEC-21 21:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 3 to 5 inches.

Winter Weather in SOUTHEAST AROOSTOOK, MAINE
From 18-DEC-21 21:00:00 to 19-DEC-21 13:00:00 (EST-5)
Reported by: Social Media

Storm total snow accumulations ranged from 3 to 5 inches.