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Weather Brief Jan 18, 2019

Midcoast Forecast - January 18, 2019

After seeing a round of light snow Friday, Saturday will be the calm between the storms with partly to mostly cloudy skies and cold conditions. The cold air will be moving back in through Saturday with lows back into the single digits and highs only in the teens. Our weather will ramp up for the second half of the weekend with a potent storm system set to move in from the west with heavy snow and winter mix starting Saturday night and continuing through Sunday. As of Friday afternoon, a Winter Storm Watch is in effect for all of Midcoast Maine due to the incoming storm. This will be upgraded to a Winter Storm Warning Friday night.

Our Sunday winter storm will be the biggest snow event so far this winter with one to two feet of snow likely leading to high and widespread impacts. Snow will start between 7pm and 10pm Saturday night and continue through Sunday before coming to an end early Sunday night. Warm air will nose in aloft from the south during the late morning and into the afternoon as the center of our storm passes west to east through the Gulf of Maine that will likely lead to a period of sleet for the coast of Maine before changing back to snow after dark. Snowfall rates will range around 1 inch per hour during this storm and could increase between 2 to 3 inches per hour for some spots during the peak of the storm Sunday morning. This will be a light and fluffy snow for the most part with temperatures holding in the single digits and teens through the day with wind chill values ranging -10 to -20 at times Sunday. Cold air will be forced in from high pressure to the north pumping in the bitter cold through the weekend. These winds will be breezy out of the northeast and north between 10mph to 20mph with gusts to 30mph during the event but not strong enough to cause widespread power outages. Snow will not be as sticky as well, so downed trees and branches is also less of a concern.

Clouds will linger on Monday with another round of flurries possible as the storm exits to the east. The coldest shot of air to be felt this winter will move in behind this storm with lows dipping below 0 and highs only in the single digits. Our weather stays active with another storm will be arriving Wednesday that could bring snow and rain mix for the mid week as temperatures rebound to the upper 30s to near 40.

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