We’ll remain colder-than-normal today as the Arctic air mass that arrived here on Saturday night remains in control. A frontal system will approach by Turkey Day and a bit of rain is likely at times and it may be cold enough at the onset for some ice pellets to be mixed in. Another system will keep us unsettled on Friday bringing with it the chance for more showers.
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The anticipated weather pattern change to colder for the Mid-Atlantic region has begun and there will be more frequent cold air outbreaks in the next few weeks compared to the last few. An impressive frontal passage late Saturday drastically changed conditions from the balmy 70’s during the afternoon to the 30’s by late evening along with strong winds, some ice pellets and even snow in many areas of the Mid-Atlantic. The first true Arctic blast of the season will continue to have its grips on the region both today and tomorrow with temperatures well below normal for this time of year. A frontal system will arrive in the Wednesday/Thursday time frame with showers and just a bit of a warm up.
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Today and Saturday will feature well above normal temperatures in the I-95 corridor, but all of that will change by Sunday with the passage of a strong cold frontal system. This front will blast through the region late Saturday – perhaps accompanied by rain shower activity - and it will usher in the first true blast of Arctic air this season. As the Arctic air flows over the still relatively warm water temperatures of the Great Lakes this weekend, it will generate the first widespread Great Lakes effect snows of the season for those places just downstream; especially, in higher elevation locations. In fact, given the vast difference in temperatures expected this weekend between the warm water and cold Arctic air, thundersnows could develop explosively resulting in substantial snowfall in some places just downstream. Snow showers could even push into areas east of the mountains later this weekend and reach all the way into the immediate I-95 corridor. Winds on Sunday could gust past 40 mph out of the northwest and temperatures should be confined to the 40’s along with the aforementioned chance of snow showers. It stays quite cold on Monday and Tuesday before a slight warm-up arrives at mid-week. Unfortunately, that mid-week slight warm up will likely be accompanied by a storm system traveling northeast from the Midwest and rain showers are possible here in the Wednesday/Thursday time frame.
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The overall weather pattern begins to turn colder this weekend as there will be more frequent cold shots over the next couple of weeks compared to what we’ve experienced during the past couple of weeks. In fact, one such cold blast will arrive in the Northeast US on Saturday night and it promises to be windy and cold around here on Sunday and Monday following what will be a warm end to the week. Temperatures on Friday afternoon ahead of the weekend cold blast should soar well into the 60’s and then they’ll likely be confined to the 40’s on Sunday and Monday afternoons. This weekend cold blast will lead to the first widespread Great Lakes snow event in areas just downstream of the lakes and there could even be some snow shower activity pushing into areas east of the mountains and into the I-95 corridor.
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The overall weather pattern begins to turn colder this weekend as there will be more frequent cold shots in the next couple of weeks compared to what we’ve experienced during the past couple of weeks. In fact, one such cold blast will arrive in the Northeast US on Saturday night and Sunday promises to be windy and cold around here following what will be a warm end to the week. Indeed, temperatures on Friday afternoon ahead of the weekend winter blast should soar well into the 60’s and then they’ll likely be confined to the 40’s on Sunday afternoon following the frontal passage. This weekend cold blast will lead to the first widespread Great Lakes snow event in areas just downstream of the lakes; especially, in higher elevation locations. There could even be some snow shower activity pushing into areas east of the mountains and into the immediate I-95 corridor on Sunday and Monday as an upper-level low spins around the Northeast US.
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A blast of cold air will rush into the Mid-Atlantic region on Saturday night and Sunday promises to be a wintry day for the region with winter-like chill in the 40's, strong winds and perhaps even some snow shower activity reaching close to or actually into the immediate I-95 corridor region from DC-to-Philly-to-NYC. This weekend cold blast will turn on the Great Lakes snow machine resulting in the first widespread Great Lakes snow event of the season in higher-elevation locations just downstream from the water. This weekend blast of cold air will follow a couple of warm days around here with high temperatures on Friday afternoon soaring well into the 60’s and then returning to near 60 degrees for highs on Saturday ahead of the strong cold front that will be advancing rapidly towards us from the Great Lakes.
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Low pressure will push away from the Mid-Atlantic coastline today and a weak cold front will approach on Wednesday. Following that, high pressure will build into the eastern US on Thursday and Friday and it’ll turn warmer with high temperatures well up into the 60’s by Friday afternoon. A cold air outbreak will arrive in the Northeast US this weekend from the northwest and it’ll lead to windy and colder conditions around here by Sunday and also a widespread Great Lakes snow event in areas just downstream.
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Low pressure will form near the Mid-Atlantic coastline later today and it will push clouds and showers into the I-95 corridor tonight and part of Tuesday. This system will pull away by mid-week and we should enjoy nice weather on Thursday and Friday as high pressure heads east and it’ll turn warmer. In fact, temperatures on Friday afternoon could climb to the middle 60’s.
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A strong cold front will arrive later today on the dry side and it will usher in a winter-like air mass for tonight, tomorrow and tomorrow night. Low temperatures during the next few nights should drop to near the freezing in many suburban locations. It stays on the cool side Sunday and Monday, but there should be plenty of sunshine each day and watch for the supermoon both nights. After that, we'll have to watch for a potential coastal storm which could bring clouds and showers into the I-95 corridor.
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A strong cold front will arrive later tomorrow – likely on the dry side around here – and it’ll usher in the coldest air of the season so far for the period Friday night through Saturday night. This next cold shot will hold temperatures primarily in the upper 40’s on Saturday afternoon, but the chill will ease somewhat by the latter part of the weekend and the early part of next week.
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