Heavy Snow in Central Somerset, Maine

Heavy snow moved into the western Maine mountains in the early morning hours and continued through the afternoon. Mixed precipitation stayed to the south, and snowfall totals ranged from 12 to 15 inches.

Frigid, Canadian high pressure nosed into the Northeast on the 19th and settled there into the first part of the 20th. Low pressure developed in the southern Plains and lifted through the lower Mississippi and then Ohio Valley. Strong warm air advection along the warm front, pinned offshore by the strong high pressure, allowed secondary cyclogensis to occur farther up the Northeast coast as the open wave aloft approached. Heavy snow overspread western Maine early in the morning on the 20th. As warm air advection continued ahead of the upper level wave precipitation changed over predominantly sleet, as far north as the mountains of western Maine, before ending as snow showers.