The winter has gotten off to a fast start across much of the nation and it looks like the overall cold and stormy weather pattern will continue as we head through the first half of December. Colder-than-normal conditions have been widespread through the month of November so far and snowfall has been unusually early and unusually high in many places. Signs point to more widespread cold across the US during the first couple weeks of December and the next ten days may feature copious amounts of snow in many of the same areas that received snow earlier this month.
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Winds will be noticeably lower today as high pressure edges into the Mid-Atlantic region from the Ohio Valley, but it’ll remain colder-than-normal for the latter stages of November. A weak disturbance can cause some light rain around here on Friday or perhaps even a bit of sleet and/or freezing rain in the colder suburbs and then a more important system is likely to - yet again - generate weekend rain from later Saturday into early Sunday. Temperatures will stay on the chilly side on Friday and Saturday, but there will be a noticeable warm up to close out the weekend. Looking ahead to next week, the overall pattern turns colder again in the eastern US and there are likely to be a couple of shots of snow during the first couple weeks of December.
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The pressure gradient between strong low pressure over Maine and high pressure to our west will intensify early today and the result will be wind gusts to 50 mph in the I-95 corridor. Temperatures will remain below-normal for late November and the winds will make it feel even colder than the actual outside air temperature. The high pressure system to our west today will nose into our area later in the work week before a weak disturbance comes our way on Friday which could cause a few PM rain showers. A more important storm system is coming this weekend likely resulting in another round of soaking rain for the already-waterlogged Mid-Atlantic region.
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Low pressure will intensify near southern Maine over the next 24 hours or so and make a jog back to the south and west at the same time high pressure builds into the Ohio Valley. The combination of the intensifying low pressure over Maine and approaching high pressure over the Ohio Valley will help to increase the pressure gradient over the Northeast US/Mid-Atlantic region and this may result in damaging wind gusts tomorrow of up to 50 mph in some spots.
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On the heels of yesterday’s rainfall, drier air has pushed into the Mid-Atlantic region, but it’ll be much colder-than-normal for this time of year and winds will be a noticeable factor. In fact, the chilly and windy conditions will continue into Thursday and there can be gusts to 50 mph on Wednesday as reinforcing cold air moves in. A weak disturbance could result in some rain shower activity on Friday and then a more important system could produce more rain here later in the weekend
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A strong cold front will result in more chilly rain around here today and its passage will usher in another cold air mass for the Mid-Atlantic region. High temperatures will be much closer to the 40 degree mark on Tuesday and Wednesday following the lower 50's today and there will be a noticeable wind on both days. High pressure takes control for the latter half of the week.
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The big story of the week around here will be the Arctic blast that arrives later today and it will result in one of the coldest Thanksgiving Days ever for much of the Mid-Atlantic region and Northeast US. Temperatures late night should drop to near the 25 degree mark and then struggle on Thursday to reach the freezing mark for highs. The last Thanksgiving Day in Washington, DC with highs in the 30’s was 18 years ago on November 23, 2000 when the temp only reached 38. The lows on Thursday night will be in the upper teens in a few suburban locations, the coldest conditions so far this season. After an unusually cold day on Friday, the Arctic cold air mass will begin to lift out by the early part of the weekend at which time plenty of moisture will be pushing in this direction from the Gulf of Mexico region. While the weekend event is likely to be primarily in the form of rain, there can be enough lingering cold air at the onset for sleet and/or freezing rain in some spots.
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The big story of the week will be the Arctic blast that arrives late tomorrow and it should result in one of the coldest Thanksgiving Days ever for much of the Mid-Atlantic region and Northeast US. Temperatures tomorrow night should drop to mid 20’s for overnight lows and then will struggle on Thursday to reach the freezing mark. The last Thanksgiving Day in Washington, DC with highs in the 30’s was 18 years ago on November 23, 2000 when the temp only reached 38. The Arctic cold air mass will begin to lift out by the early part of the weekend at which time moisture will be pushing in this direction from the Gulf of Mexico region.
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The month of November has been well below-normal in terms of temperatures across a very large portion of the US and Canada and one the weather highlights of this cold month may very well turn out to the coldest Thanksgiving Day ever in the Northeast US and Mid-Atlantic region. A bitter cold Arctic air mass will flood the northeastern quadrant of the nation on Wednesday night and temperatures on Turkey Day (Thursday) may struggle to escape the 20’s in Philly and New York City and to reach the freezing mark in Washington, D.C.
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November has been a colder-than-normal month so far in the DC metro region (-2.0 degrees) and it could feature one of the coldest Thanksgiving Days ever for this area. An Arctic blast will arrive at mid-week and there is the potential that high temperatures on Thursday (Turkey Day) do not even make it past the freezing mark – some 25 degrees or so below-normal for this time of year. The Arctic cold air mass will begin to lift out by the early part of the weekend and we may have to deal with a storm system near the east coast.
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