This “second half of week” event coming could be the most widespread snowfall so far this season in the DC metro region as a whole. A very active weather pattern will continue for much of the eastern half of the nation during the next ten days or so and there will be multiple chances of accumulating snow and/or ice in the Mid-Atlantic region. A relatively weak system passing by to our north today can cause a bit of freezing rain early this morning and a spotty, light (plain) rain shower from late morning into early afternoon. A stronger system is likely to impact the region in two waves during the second half of the week with one concentrating on the period from later Wednesday into early Thursday and then a second from later Thursday into Friday. Significant accumulations of snow are on the table during this long-duration event from late Wednesday into early Friday. Looking ahead, the late Wednesday-to-early Friday threat won’t be the last one for the region and yet another system could generate snow and/or ice in the Mid-Atlantic region later in the upcoming weekend - and potentially more activity could come next week.
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It just won’t let up…a very active weather pattern will continue for much of the eastern half of the nation during the next ten days and there will be multiple chances of accumulating snow and/or ice in the Mid-Atlantic region. Arctic air is in place as we begin the new work week across the northeastern quadrant of the nation and intense cold will grip the much of the northern and central US in coming days….in other words, there will be plenty of cold air around to tap into for the Mid-Atlantic region by approaching systems.
The first chance for snow and/or ice in the Mid-Atlantic region will come late tonight and tomorrow from a relatively weak system that moves into the northeastern states. Despite its weakness, this initial system can cause some problems with accumulating snow north of the PA/MD border and potential ice south of there. A stronger system is likely to then impact the region in two waves during the second half of the week with one concentrating on the period from later Wednesday into early Thursday and then a second from later Thursday into Friday. Accumulations of snow are certainly on the table in the DC-to-Philly-to-NYC corridor during this long-duration second half of the week event - and this won’t be the end of the wintry precipitation threats. Yet another system could generate snow and/or ice in the Mid-Atlantic region later in the upcoming weekend and potentially more activity could come next week.
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Our active weather pattern of recent days will continue this week and there will be multiple opportunities for snow, ice, and/or rain in the DC metro region. High pressure will briefly take control of the weather around here today as we begin the new work week, but then a “clipper” type of system will push by to our north on Tuesday with little impact around here. A stronger system will impact the region in two waves beginning late Wednesday into early Thursday and again late Thursday into Friday. Accumulations are on the table for this long duration event during the second half of the week and the threat of wintry precipitation will not end there.
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A moderately cold air mass has moved into the Mid-Atlantic region following the passage of a cold frontal system and now attention has turned to the Gulf of Mexico and the southeastern states where moisture is gathering. A storm will develop near the South Carolina coastline by early tonight and move to a position off the New Jersey coastline by mid-day Sunday. This system is going to generate a new round of accumulating snow in the DC-to-Philly-to-NYC corridor from late tonight into the mid-day or early afternoon hours on Sunday with several inches on the table for many spots. Looking ahead, the active weather pattern of recent days will continue beyond tomorrow’s storm with additional chances of snow and/or ice coming to the Mid-Atlantic from around mid-week into next weekend.
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Moderate cold air will follow the passage of a cold front for the upcoming weekend and attention will turn to the Gulf of Mexico and the southeastern states where a lot of moisture will be gathering. A storm will develop near the South Carolina coastline by early Saturday night and move to a position off the New Jersey coastline by mid-day Sunday. This system is likely to bring another round of accumulating snow to the DC-to-Philly-to-NYC corridor from later Saturday night into Sunday morning with several inches on the table. Looking ahead, very cold air will pour into the interior Northwest, Northern Plains, Upper Midwest and Great Lakes next week and the overall active weather pattern will bring additional snow threats to the Mid-Atlantic region.
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A strong cold front will cross the region today with morning clouds giving way to partial sunshine by afternoon. It’ll turn breezy and milder by the mid-day and afternoon hours and temperatures are likely to climb to near 50 degrees for highs. Moderate cold air will follow the cold frontal passage for the upcoming weekend and attention will turn to the Gulf of Mexico and Southeast US where a lot of moisture will be gathering. A storm will develop in the southeastern states by early Saturday night and it is likely to impact us here later this weekend. The most likely impact time for this quick-moving storm system will be from later Saturday night into Sunday morning with snow that can mix with or change to rain briefly before precipitation ends on Sunday. Snow accumulations of several inches are on the table for the late weekend storm.
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Low pressure is impacting the Upper Midwest today with accumulating snow from Iowa to Wisconsin and it’ll push into the southeastern part of Canada by later tomorrow. A trailing strong cold front will slide into the eastern US on Friday and there can be a wintry mess of snow, sleet and/or freezing rain ahead of it in some suburban locations of the I-95 corridor from late tonight into early Friday. By later Friday, it’ll turn mild enough for just plain rain showers in the DC-to-Philly-to-NYC corridor and temperatures will likely climb into the 40’s.
Moderate cold air will follow the cold frontal passage for the upcoming weekend and attention will turn to the Gulf of Mexico and Southeast US where a lot of moisture will be gathering. A storm will develop in the southeastern states by early Saturday night and - depending on the interaction of two separate waves of energy aloft - it could end up pushing far enough to the north and east to have an impact the Mid-Atlantic region with accumulating snow - perhaps mixed with rain at times - from late Saturday night into mid-day Sunday. Looking ahead, very cold air will pour into the interior Northwest, Northern Plains, Upper Midwest and Great Lakes early next week and it looks like it will then spread to the Mid-Atlantic region at mid-week - potentially setting us up for an extended period of colder-than-normal conditions…and likely additional snow threats.
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High pressure will be the main player today in the Mid-Atlantic region generating plenty of sunshine which will be quite a change from recent days. Clouds will increase this evening and there can be rain showers towards morning - possibly mixed with sleet and/or snow - as a strong cold front pushes towards the eastern states. It’ll turn milder on Friday ahead of the front and there can be additional rain showers in the AM and temperatures should climb to the upper 40’s. It turns a bit colder this weekend following the passage of the cold frontal system and attention will turn to a storm system over the Southeast US. There continues to be a chance that northern and southern stream energy "phase together" in time for this system to push far enough to the north and east to have an impact on the Mid-Atlantic region.. If so, there would likely be snow or a combination of snow and rain in the Saturday night/Sunday time frame...stay tuned.
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The winter storm that has impacted us since the late weekend is still able to generate snow showers in the DC metro region and it won't relinquish control of our weather until later today. Temperatures today will struggle to reach the upper 30's for highs, but we'll be closer to 45 degrees on Thursday and 50 degrees on Friday as a cold frontal system approaches. That next front can cause snow and/or rain showers here from later tomorrow night into Friday afternoon and then it'll turn colder again this weekend following the passage of the cold front.
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The major winter storm that has impacted the Mid-Atlantic region since the latter part of the weekend continues to produce occasional snow in the area today and it can come down hard for a brief time with additional small accumulations. Snow showers are still possible tonight and the winds will remain quite strong right through tomorrow. High pressure will edge into the region on Wednesday and it’ll stick around on Thursday. A frontal system will cross the area on Friday and it could generate some rain showers in the region to end the work week. One final note, Phil sees his shadow...6 more weeks of winter...very smart rodent.
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