The first major winter storm of the season for the Mid-Atlantic/Northeast US is winding down today and there will be lots of cold air in its wake. In fact, the next several days are likely to remain colder-than-normal in the eastern US and there are increasing signs for a significant cold blast late next week – just in time for Christmas Day. In addition to the threat for more cold weather, it looks like volatile weather will continue next week and beyond with several impressive waves of energy to monitor that will be heading into the eastern states.
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The first major winter storm of the season in the Mid-Atlantic region will pull away today and sunshine is going to return to the area. It will, however, stay quite cold and windy in the wake of the storm and overnight lows during the next couple of nights will be in the teens. High pressure will remain in control of our weather through the upcoming weekend. Looking ahead, signs point to quite a cold blast late next week into the central and eastern US – just in time for Christmas Day.
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A high impact winter storm is getting underway in the Mid-Atlantic region and it will push into the Northeast US later today and continue into early Thursday. Sleet will become a big player in the DC-to-Philly corridor with freezing rain in the mix as well and this will limit total snowfall accumulation amounts. This storm will be primarily a snow event across upstate PA, interior upstate NJ, NY and New England and rain will dominate from southern NJ-to- the southern half of the Delmarva Peninsula-to-southeastern Virginia. Travel conditions will become quite difficult for the Wednesday PM and Thursday AM commutes from this major winter storm.
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Very strong and cold high pressure is anchored across southeastern Canada this morning and the day will begin cold and dry. Meanwhile, low pressure will be developing today along the Carolina coastline and then push northward to southeastern Virginia and then to the Delmarva Peninsula by early tonight. After that, the low will make a bit of a turn and push more to the northeast instead of to the north resulting in a position east of New Jersey by the late night hours. Snow is likely to break out during the early-to-mid afternoon hours and given the expected storm track, enough milder air will push in from the ocean to cause a mixing with or a changeover to sleet. Later tonight as the low shifts to the east, colder air should wrap around and cause a change back to all snow before the precipitation winds down early Thursday. The mixed precipitation will limit somewhat the total snow accumulations during this storm likely to the 4-8 inch range in Philly and 6-12 inch range in the northern and western suburbs. There can also be a buildup of ice in some areas later today with the expected extended period of sleet - low-level temperatures will be hard pressed to rise above freezing. One last note, watch for "mesoscale" banding during this storm which could result in heavy bursts of snow and/or sleet and possible "thunder snow" or "thunder sleet".
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A high impact storm is coming to the Mid-Atlantic/Northeast US at mid-week with significant snow for some, ice and rain for others and winds will become a big factor as well. The big cities along the DC-to-Philly-to-NYC corridor will have accumulating snow as well as a period of mixed precipitation and the heaviest snowfall amounts will be on the northwest side of the I-95 corridor. Rain will dominate in areas from coastal southern New Jersey to the southern half of the Delmarva Peninsula to southeastern Virginia.
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The biggest snow and ice storm in years is heading to the eastern US. High pressure will continue to build into southeastern Canada today and it will result in a dry and very cold day here in the Mid-Atlantic region as we await a significant mid-week storm system. This next storm will likely begin here with all snow on Wednesday during the early-to-mid afternoon hours. The snow will become heavy at times by day's end and there can then be a mixing with sleet and/or freezing rain. The brunt of the storm will take place tomorrow night when snow or a mix of snow, sleet and/or freezing rain likely changes back to all snow and it'll come down heavy at times with significant total snow accumulations by daybreak Thursday. Current estimates of snow accumulations are as follows (and it may be compacted some with ice): 4-8 inches in the Philly metro region, 6-12 inches in the N/W suburbs. Snow winds down early Thursday and the rest of the day will feature breezy and very cold conditions and snow showers are possible in the PM hours.
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This will be a stormy week in the Mid-Atlantic region with two storms to deal with during the next few days. The first storm has already brought some heavy rainfall to the DC-to-Philly-to-NYC corridor and as colder air filters in from a strengthening high pressure system to the north, a changeover to snow is taking place from northwest to southeast. A second and high impact storm will arrive at mid-week and it is likely to result in accumulating snow, ice, rain and strong winds for the Mid-Atlantic region.
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This will be a stormy week in the Mid-Atlantic region with two storms to deal with during the next few days. Today’s storm will begin with all rain, but as colder air filters in from a strengthening high pressure system to the north, a changeover to snow is quite likely by the late morning or mid-day hours. There can be a couple inches of accumulation before the snow winds down later in the afternoon. A second and more impactful storm will arrive by mid-day or early afternoon on Wednesday with snow initially for the region. Sleet and freezing rain will then likely mix in for a period of time before changing back to snow at night. This period of mixed precipitation will limit total snow accumulations with preliminary snowfall estimates of 3-6 inches in the Philly metro area, 6-12 inches in the nearby N/W suburbs, and 12+ inches in the far N/W suburbs. Snow showers will linger through the day on Thursday and it'll remain much colder-than-normal right into the upcoming weekend.
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This will be a stormy week in the Mid-Atlantic region with two storms to deal with during the next few days. The first storm on Monday will begin with rain in all areas of the DC-to-Philly-to-NYC corridor, but as colder air filters from a strengthening high pressure system to the north, a changeover to accumulating snow is likely to take place in suburban areas to the north and west of the big cities. A second and powerful storm will arrive at mid-week and it is likely to result in significant snow, ice and rain for the Mid-Atlantic region with a mixture possible in parts of the metro areas, heavy snowfall to the north and west, and primarily rain near and along coastal sections of southern New Jersey and the Delmarva.
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The interesting and active weather pattern of recent weeks will continue into at least the middle of the month with two storms on the table for this week in the Mid-Atlantic/Northeast. The first storm for the Mid-Atlantic/Northeast US will come on Monday and an even bigger threat comes at mid-week with the greatest potential impact. In fact, the mid-week storm could turn out to be a major snowstorm for a large part of the Mid-Atlantic/Northeast US. In the short term, the weather remains mild during the next couple of days in much of the eastern half of the nation, but a colder air mass is going to filter into the northeastern quadrant of the nation on Sunday night and Monday following the passage of a cold front - setting the stage for a very wintry week.
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