Temperatures for the rest of week will moderate some compared to the recent chill, but they’ll still be primarily below-normal for this time of year. Another serious shot of cold air looks likely to arrive in the Mid-Atlantic region by Sunday of the upcoming weekend and it appears that this overall colder-than-normal weather pattern will continue right through much of next week. The weekend Arctic blast is likely to result in an impressive “lake-effect” snow event for those areas in and around the still relatively warm Great Lakes. As cold Arctic air flows over the warmer waters of the Great Lakes, the lower atmosphere tends to destabilize and snow showers/squalls are likely to be the outcome in the typical “lake-effect” region of the Northeast US and Great Lakes – perhaps a snow shower can even make it into the I-95 corridor. Abnormal high pressure will settle into northern Canada by later in the weekend and this type of “high-latitude blocking” pattern will likely help to sustain the colder-than-normal conditions around here right through most or all of Thanksgiving week with a reinforcing shot of Arctic air possible just before Turkey Day.
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The unfolding weather pattern across North America over the next couple of weeks virtually assures a colder-than-normal month of November for the Mid-Atlantic region and a quick start to the winter season. An initial Arctic blast this past weekend resulted in numerous record low temperatures and it is increasingly likely that a second Arctic blast arrives in the Mid-Atlantic region by Sunday of the upcoming weekend. Beyond that, “high-latitude blocking” in the upper part of the atmosphere is likely to help keep much of the chilly air in place around here during much of Thanksgiving week.
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Low pressure near the Mid-Atlantic coastline is causing a cold rain this morning, but it’ll soon give way to building high pressure in the local region. Despite more in the way of sunshine during the next few days, it’ll stay below-normal for this time of year and then another strong cold front is destined to arrive here this weekend.
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An Arctic cold front blasted through the region last night and temperatures will be way below-normal in the Mid-Atlantic region for the next couple days. In fact, temperatures tomorrow morning will likely bottom out near the 20 degree mark in many locations and low temperature records may be broken in some spots. This first Arctic blast of the season is liable to be followed by others later this month as “high-latitude blocking” sets up featuring abnormally high pressure over Greenland while at the same time an upper-level trough forms over the eastern US. This type of pattern could very well result in another blast of Arctic air for the Mid-Atlantic region by next weekend and then Thanksgiving week promises to be quite interesting with prospects for continued cold and perhaps even snow somewhere in the Northeast US.
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An Arctic cold front will arrive here tonight and the winds will pick noticeably as colder air begins to pour into the Mid-Atlantic region. This frontal passage will usher in the coldest air mass of the season so far for the end of the work week and beginning of the weekend and temperatures could bottom out near the 20 degree mark by early Saturday morning. Overall conditions will be less harsh on Sunday and Monday, but it’ll remain colder-than-normal for this time of year and there could be some rain to start the new work week from low pressure near the Mid-Atlantic coastline.More cold air outbreaks are destined to follow later this month into the central and eastern US as a “high-latitude blocking” pattern develops way up north.
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A strong cold front will arrive here tomorrow night and usher in the coldest air mass of the season so far for Friday and Saturday. Temperatures should drop way down to near 20 degrees by early Saturday morning and will not do much better than the 30's for highs on both Friday and Saturday afternoons. Some modification in temperatures is likely by the early part of next week, but more cold air outbreaks are destined to follow later this month as a “high-latitude blocking” pattern develops way up north.
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Let the games begin…it is now snowing in State College and Altoona in upstate Pennsylvania and the look to winter is suddenly upon us in the Mid-Atlantic region. Low pressure today will head towards the Mid-Atlantic coastline and a cold rain in the I-95 corridor may actually end as a mix of sleet or snow tonight to the north and west of the big cities. A powerful cold front will arrive with gusty winds on Thursday night and usher in an Arctic blast for Friday and Saturday with the lowest temperatures of the season so far and possible record-breaking low temperatures in many spots An overall upper-atmosphere pattern with “high-latitude blocking” is looking increasingly likely for later this month and that could result in more cold air outbreaks for the Mid-Atlantic region by the time Thanksgiving week rolls around.
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A cold frontal system passed through the region late yesterday and has stalled out in the southern part of the Mid-Atlantic. Low pressure will form along the frontal boundary zone over the Tennessee Valley this morning and head towards the Mid-Atlantic coastline producing rain in the I-95 corridor. It could be just cold enough in some of the higher elevation regions to the north and west of here for some sleet or snow to mix in with the rain later today and tonight. An even stronger cold front will arrive here on Thursday night with gusty winds and it'll usher in the coldest air mass of the season so far for Friday and Saturday. In fact, temperatures are likely to drop down to near 20 degrees by early Saturday morning and highs on Friday and Saturday could be confined to the 30's. There will be some modification in temperatures early next week.
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The week started off on a warm note here in the Mid-Atlantic region, but it’ll turn noticeably colder tomorrow following the passage of a cold frontal system which will stall out over the southern Mid-Atlantic. In fact, low pressure will form along the frontal boundary zone on Tuesday and it’ll spread a chilly rain to many areas and there can even be some snowflakes mixed in tomorrow night in the higher elevations of northwest NJ and northeast/east-central PA. An even stronger (Arctic) cold front will arrive on Thursday night and this will be followed by an intense blast of cold air for Friday and Saturday which should result in the 20’s by early Saturday morning.
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It’ll be another warm day in the Mid-Atlantic region as we start the new work week, but a cold front is approaching the region and it will generate showers later today and perhaps even a thunderstorm. Low pressure may form along the frontal boundary zone on Tuesday over the Tennessee Valley and move towards the Mid-Atlantic coastline possibly producing additional showers around here. Cold high pressure will take over for the latter part of the week following the Thursday night passage of a strong cold front and our temperatures will slide to below-normal levels.
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