Another raw day
For you early birds heading out, be aware of patchy fog around in the valleys and waterways. In some areas freezing fog is possible, so watch the thermometer closely. Take 5° off your vehicle thermometer for a better read on surface temperature. As clouds increase and wind picks up, fog should clear out by around midday.
After a dry morning, showers break out over western and coastal areas this afternoon. As the cold air sinks in aloft, that will change rain over to a brief mix of freezing rain to snow by tonight. Precipitation tapers off Friday morning, ending by roughly noon.
Since Maine is on the fringe of the storm, this sets up forecast challenges. Any deviation of track at this point makes the difference of how accumulations play out.
NOTE: There are still hints of both overperformance and under performance due to the subtle changes in track. Model outliers show as much as 6" of interior York County, to next to nothing for accumulation at all. Such is life on the fringe of storm.
I made a slight adjustment to the map posted here yesterday. Southwestern areas have the best chance for accumulation from Fryeburg to Portland south, whichever way I look at it.
If you are early out the door Friday morning, allow for plenty of extra time and take it slow. Hopefully the annual meeting of the Summer Tires Club doesn't screw up commute times too bad.
As far as plowing and shoveling goes, this is going to melt. There is no need to tear up the yard.
Saturday dry and chilly, Sunday damp
As the storm departs Friday, high pressure moves in for Saturday, and brings bluebird sky with temps in the 30s and 40s. As high pressure moves east Saturday night, clouds increase with the southwest flow heading into Sunday. Showers break out over the region during the day on Sunday with highs in the 40s and 50s.
After the front passes through early Monday, the mountains and north may see snow shower activity through the day, ending early Tuesday.
The pattern appears dry through most of next week.
Temperature outlook through Wednesday
Below normal temperatures continue to be the rule through the period. Sunday will be above normal marginally. A warmer trend idea is being pitched for later next week.
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