Low pressure today will head towards the Carolinas and produce snow in the southern Appalachians from northeastern Georgia to southwestern Virginia, but it will not have any impact on the DC-to-Philly-to-NYC corridor as it continues on a northeasterly track and heads to the western Atlantic Ocean. High pressure will resume control this weekend and then low pressure will pull out of the southern US early next week and it remains to be seen as to how far north it'll come - something to monitor in coming days.
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Changes to the overall upper-level pattern across North America during the next week or so will result in much colder air for the second half of the month of January in the Mid-Atlantic/NE US. The upper part of the atmosphere will evolve into a pattern that features high-latitude blocking across Greenland/northeastern Canada, high pressure ridging across the west coasts of Canada and the US, and even “cross-polar” flow which could transport Siberian air to this side of the North Pole. In addition, numerous waves of energy aloft will ensure the recent active weather pattern continues with numerous storm threats in coming days for much of the nation. One storm system will bring accumulating snow on Friday to the southern Appalachians from northeastern Georgia to southwestern Virginia and another system next week could threaten the Mid-Atlantic/NE US with snow and/or rain.
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High pressure will be in control of the weather today bringing us cold, breezy conditions and yes, the return of the sun (great yellow ball in the sky). Low pressure on Friday will head towards the Carolinas and produce snow in the southern Appalachians from NE Georgia to SW Virginia, but likely not have any impact on the DC-to-Philly-to-NYC corridor as it continues on a northeasterly track and heads to the western Atlantic Ocean. High pressure will resume control this weekend and then low pressure will pull out of the southern US early next week and it could bring snow here on Tuesday or a mix of snow and rain - something to monitor closely in coming days.
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While there certainly has been some moderate cold in the Mid-Atlantic/NE US in the first part of the month, the overall weather pattern that is unfolding will likely result in much colder air relative-to-normal for the second half of the month of January. The upper part of the atmosphere will evolve into a pattern that features high-latitude blocking across Greenland/northeastern Canada and high pressure ridging across the west coasts of Canada and the US. This combination will allow for the transport of increasingly cold air masses into the Mid-Atlantic/NE US as we progress through January. In addition, numerous waves of energy aloft will ensure the active pattern continues as well with many storm threats to come in coming days for much of the nation.
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A cold front passed through the area on Tuesday and has ushered in a reinforcing cold air mass for the Mid-Atlantic region. The frontal passage has also led to a drier atmosphere which will allow for the return of sunshine today as high pressure builds into the region. In fact, the high pressure system will control the weather around here for the next couple of days with chilly conditions, a noticeable breeze and plenty of sunshine. Low pressure heads to the Carolina coastline on Friday morning and likely stays just to our south and east as it heads to the northeast and out-to-sea.
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A cold front will pass through the area this afternoon and bring with it a good chance of rain and/or snow showers and ice pellets can mix in as well. High pressure will take control of the weather around here for Wednesday and Thursday and then we’ll have to watch the movement of a storm system expected to be over the Carolinas as we close out the work week on Friday. This system could stay to our south and east and head out-to-sea, but it is still something to monitor as a turn to the north cannot yet be ruled out. Another winter storm is likely to threaten the southern and eastern US next week and this one will need to be closely monitored right through the upcoming weekend as it has great potential.
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The overall weather pattern has been quite active in recent days in the eastern US with two different storm systems impacting the area in just the last three days. Numerous signs in the atmosphere point to a continuation of the stormy weather pattern in coming weeks across the eastern US and it is likely to become increasingly colder - raising the chances for accumulating snow. An on-going stratospheric warming event raises the prospects for high-latitude blocking in coming weeks which, in turn, increases the chance for increasingly colder outbreaks into the Mid-Atlantic/NE US. Teleconnection trends in such indices as the North Atlantic Oscillation (NAO) support the notion for a sustained period of high-latitude blocking which, in turn, would be more favorable for coastal storm development. In the near-term, one storm will likely push to the Carolina coastline on Friday and it may then stay to the south and east of the DC-to-Philly-to-NYC corridor as it heads out-to-sea - but it still needs to be closely monitored. Another winter storm is likely to threaten the southern and eastern US during the early or middle parts of next week as the active pattern continues.
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Low pressure which impacted the region with a mixture of precipitation on Sunday will push away from the New England coastline today and the next weather maker for us will be a cold front to our northwest. This cold front will pass through the area on Tuesday afternoon and bring with it a chance of rain and/or snow showers. High pressure will take control of the weather around here for Wednesday and Thursday and then we’ll have to watch the movement of a storm system expected to be over the Carolinas as we close out the work week on Friday. This system could stay to our south and head out-to-sea, but it is something to monitor next few days.
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An active weather pattern will continue into the new year with one low pressure system bringing precipitation here on Friday and Friday night and then a second system will impact us on Sunday. The first system will result in accumulating snow for parts of the Upper Midwest and Ohio Valley and mainly a rain event for the Mid-Atlantic region. However, it can be cold enough at the onset of the event on Friday for a brief period of sleet and/or freezing rain in some of the far northern and western suburbs. After an unseasonably mild day on Saturday, it'll turn colder by Sunday and a second low pressure system will intensify near the Mid-Atlantic coastline bringing us more precipitation to close out the weekend.
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An active weather pattern will continue into the new year with one low pressure system bringing precipitation here on Friday and Friday night and then a second system will likely impact us on Sunday. The first system will result in accumulating snow for parts of the Upper Midwest and Ohio Valley on Friday and mainly a rain event for the Mid-Atlantic region. However, it can be cold enough at the onset early Friday for a brief period of sleet and/or freezing; especially, in some of the far northern and western suburbs. After an unseasonably mild day on Saturday, it'll turn colder on Sunday and a second low pressure system will likely intensify near the Mid-Atlantic coastline bringing us more precipitation to close out the weekend.
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