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Weather Brief Nov 14, 2018

Midcoast Forecast - November 14, 2018

Wednesday has been a shock to the system as strong northwest winds ushered in the coldest air so far this season into the Midcoast. Winds gusted between 40 and 50mph Wednesday morning resulting in scattered power outages and wind chill values in the single digits. The continuous push of cold air also kept highs in the 20s despite sunny skies and will drip lows into the teens Wednesday night. High pressure will move over New England on Thursday continuing sunshine for the morning and making for lighter winds. The cold air will hold with highs again in the 20s, setting the stage for a winter storm.

Clouds will increase late Thursday as an area of low pressure moves out of the mid Atlantic and into the southern Gulf of Maine Friday. With cold air in place, precipitation will start as snow for the Midcoast after midnight and continue into Friday morning. Warmer air will nose in along the immediate coast that will change snow to a snow and rain mix with some sleet inland around the mid morning and into the midday hours. Cold air will collapse back toward the coast changing the mix back to all snow as the storm begins to depart to the north and east during the afternoon. We'll see gradually clearing Friday night with mostly sunny skies returning for Saturday.

With the current setup, most of the Midcoast is likely to see accumulating snow on Friday but the exact amount will continue to be tweaked as the event gets closer. A small shift in temperatures up or down could result in more of a rain mix or little to no mix.

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