Low pressure continues to deepen off the Mid-Atlantic coastline and it will continue to have a major impact on the northern Mid-Atlantic through tonight in the area from eastern PA-to-New Jersey-to-southeastern New York. Mixed precipitation this morning has changed to snow in most places as colder air wraps into the system from the north/northeast. There will continue to be small-scale bands of very heavy snowfall from later today through tonight and many spots will end up with 1-2 feet of accumulation from this long duration storm system by the time it winds down later Tuesday.
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Low pressure will intensify off the Mid-Atlantic coastline today and push very slowly to the north as it encounters a blocking pattern in the atmosphere. Mixed precipitation this morning should change back to all snow by the mid-day or early afternoon as colder air wraps around the intensifying storm off the Mid-Atlantic coastline. The snow can continue at varying rates through tonight and into early Tuesday with some additional accumulations possible and the winds through this period will be quite strong as well.
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A major and complex storm system is coming to the Mid-Atlantic region and it will be a long duration event with impact into Tuesday. Indeed, this storm could turn out to be one of the all-time greats for some sections of eastern PA, upstate New Jersey, and southeastern New York. The storm will come in two phases with the first part already underway and associated with a process known as “overrunning”. The second phase of this major winter storm event will feature a very slow moving and powerful storm just off the Mid-Atlantic coastline.
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The stage is set…Arctic air is in place anchored by strong high pressure to the north and a major and complex storm system is coming to the Mid-Atlantic region and it will be a long duration event with impact from Sunday into Tuesday. Accumulations of 6+ inches are possible in the DC metro region with 12+ inches possible in the Philly and NYC metro areas. The storm will come in two phases with the first part associated with a process called “overrunning” and the second phase featuring a major coastal storm. The combination of the potential heavy snow and strong winds may prompt the need for “blizzard warnings” to be issued in at least parts of the Mid-Atlantic region for this upcoming event.
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Arctic air has its grip on the Mid-Atlantic region and it won’t loosen its control anytime soon. Winds will howl today out of the NW and the Arctic cold will stick around through the weekend. A long duration winter storm event will get underway on Sunday and, as a storm intensifies off the Mid-Atlantic coastline, impact can continue all the way into early Tuesday with significant snow accumulations of at least several inches on the table.
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Arctic cold has gripped the Mid-Atlantic region and won’t loosen its control for awhile. Today will turn out to be the coldest day of the winter so far with a biting wind and temperatures struggling to pass the freezing mark for afternoon highs. The Arctic cold will stick around well into the upcoming weekend and attention will turn to the west as the next winter storm as it crosses the nation. That next storm system poses a threat for significant accumulating snow in the Mid-Atlantic region and it can be a long duration event with an impact here from Sunday morning all the way into Tuesday. Snow is likely to arrive here on Sunday morning and there can be 3-5 inches of accumulation by the end of the day at which time mixing of the snow is quite likely to take place. More snow or a wintry mix is possible on Monday and Tuesday as a (secondary) storm intensifies near or just off the Mid-Atlantic coastline.
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Winds have increased markedly today as an Arctic air mass arrives in the Mid-Atlantic/Northeast US from the eastern part of Canada. Temperatures will plunge in the overnight hours and Friday promises to be the coldest day of the winter season so far with continuing biting-cold NW winds. The Arctic cold will stick around well into the upcoming weekend and attention will turn to the west as the next winter storm crosses the nation. That storm poses a threat for significant accumulating snow in the Mid-Atlantic region and it could turn out to be a long duration event with potential impact all the way from Sunday into Tuesday.
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Increasingly strong N-NW winds today will signal the arrival of an Arctic blast that will halt temperatures in their tracks today and result in overnight lows at or slightly below the 20 degree mark and tomorrow will turn out to be the coldest day of the season so far. The Arctic cold will stick around well into the upcoming weekend in the Mid-Atlantic region and attention will turn to the west as the next winter storm crosses the nation. That next storm system poses a threat for accumulating snow in the Mid-Atlantic region from later this weekend into the early part of next week and its impact could actually extend from Sunday into Tuesday…stay tuned for more details on this upcoming and complex winter storm threat.
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Yesterday’s light wintry mix in the Mid-Atlantic region has pushed off to the northeast and a look ahead includes an Arctic blast and a potential major winter storm. Increasingly strong NW winds later tomorrow will signal the arrival of an Arctic blast that will bring temperatures down to the teens by early Friday and the last day of the work week will turn out to be the coldest so far this season. The Arctic cold will stick around well into the upcoming weekend in the Mid-Atlantic region and attention here will turn to the west as the next winter storm crosses the nation. That storm poses a threat for accumulating snow in the Mid-Atlantic region beginning late in the upcoming weekend and it could turn out to be a significant and long duration event with an impact all the way into late Tuesday.
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After high pressure takes control of our weather today, low pressure will intensify near the Carolina coastline late tonight and on Thursday. Snow showers caould reach as far as the DC metro region late tonight and a dusting of snow cannot be ruled out. The pressure gradient between the high pressure system and the intensifying Carolina storm will tighten significantly on Thursday and winds will become quite noticeable around here. The increasingly strong NW winds will usher in a very cold air mass for the end of the week and it’ll stick around for much of the weekend as well. High temperatures on Friday will be confined to the lower 30's and overnight lows on Thursday night and Friday night will be within a few degrees of 20. Another storm system will cross the country this weekend and threaten the Mid-Atlantic region with snow or a snow/rain combination in the late Sunday/Monday/early Tuesday time frame. This scenario could feature an initial wave of low pressure headed to the Ohio Valley and then the formation of a secondary storm off the Mid-Atlantic coastline.
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