Icy Spots Possible Overnight
12z NAM Forecast IDEA of Precipitation Type at 2 AM Thursday
At this point, it does not pose as a big concern, but protected valleys in the foothills and mountains may see a brief period of icing and / or overnight. As warmer air advances into the region, the main issue for the morning commute is likely to be fog in areas that may be locally dense. Fog may hold in areas well into the morning, and may linger in spots for most of the day. Temperatures appear to rise into the 50s for most areas south of Route 2, and dare I say 60° may be possible for Sanford.
A Soggy Day Turns Back To Snow Late
The warm front associated with weak low pressure over the Mid-Atlantic advances northeastward during the day, and may make it into southern areas. With increased humidity and an unstable atmosphere, there is a slight threat for a weak thunderstorm for southwestern zones Thursday evening as the cold front moves in from the northwest. The bulk of the steadier rain arrives appears to arrive Thursday afternoon. Folks living along rivers, streams & brooks will want to keep close watch on water levels and potential for flooding and ice jams as the snow pack will likely take a hit from this event Thursday evening into Friday morning.
As the cold front sags further south and colder air moves in Thursday evening into early Friday, the mountains will likely see a changeover from rain back to snow.
For now, the bulk of the snow appears to hug the border with Quebec, with a light amount falling over central Oxford, Franklin & Somerset counties. The rest of the region may see a few flakes on the ground by daylight Friday morning, as temperatures tumble below freezing for most locales. Given the rain, fog, and melting likely to occur, icy spots are likely for many areas in time for morning commute. Snow showers appear to linger in the mountains through late morning, with flurries possible by evening as northwesterly winds may cause upslope conditions.
Western Maine Weather 5+2 Day Outlook
The weekend looks good overall, outside of a chance of a snow shower or flurry Saturday as high pressure works in. Clouds break Saturday night, which sets up a bitter cold start to Sunday. Temperatures appear to rebound fairly quickly under bright skies and southwest flow to get most areas above freezing. Clouds increase early Monday as low pressure slides through central Quebec.
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