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Colder, Weaker Sunday Storm to Bring Mixed Wintry Precipitation Across Maine

Cold-air damming may trap near-surface chill, creating a coastal rain changeover with inland snow, sleet, or ice.

Overview

  • Low pressure sliding in from Canada Saturday night is expected to spread precipitation across Maine and interior New Hampshire through Sunday.
  • Forecasters now expect a weaker but colder setup that increases the chance of wintry weather away from the coast.
  • Along the immediate coast and in southern areas, sleet or freezing rain may start the day before a likely change to plain rain by midday Sunday.
  • Farther inland, snow and sleet are favored early with a possible period of freezing rain if near-surface cold persists.
  • Mountains and far northern Maine are likely to see mainly snow with light to moderate accumulations before the system exits Sunday night, followed by a breezier, cooler Monday.