A powerful cold front will come barreling towards the east coast from tomorrow night into early Friday and it’ll bring some wild weather with it to the Mid-Atlantic region for the night of Christmas Eve. Ahead of the front, there will be heavy rain, possible thunderstorms, and potentially damaging wind gusts which, unfortunately, raises the prospects of power outages. It’ll become much milder as well on Thursday with temperatures likely flirting with the 60 degree mark for late day highs. The combination of heavy rainfall and already wet grounds will likely lead to localized flooding in areas of poor drainage. On the back side of the front, temperatures will drop rapidly in the wee hours of the morning on Friday and hold in the low-to-mid 30's during Christmas Day. The cold air mass will stick around as we begin the upcoming weekend with temperatures on Saturday struggling to pass the 30 degree mark.
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A powerful cold front will come barreling towards the eastern seaboard later this week and it’ll bring some wild weather with it to the Mid-Atlantic/Northeast US from later Christmas Eve (Thursday) into early Christmas Day (Friday). Ahead of the front, there will be heavy rain, possible strong thunderstorms, and potentially damaging winds which, unfortunately, raises the prospects of power outages. It’ll become much milder as well on Thursday with temperatures likely flirting with the 60 degree mark for late day highs in places like DC, Philly and NYC. The combination of heavy rainfall and mild conditions will cause a rapid melting of snow and this is likely to lead to localized flooding in areas of poor drainage.
On the back side of the front, temperatures will drop rapidly following the heavy rain event to below the freezing mark in many spots resulting in a quick freeze-up of standing water on untreated surfaces. Snow accumulations of several inches are likely in the colder air mass across portions of the Ohio Valley and interior Mid-Atlantic/Northeast US. There can even be a brief changeover to sleet and/or snow in the I-95 corridor early Friday morning as the colder air rushes into the region, but a “flash freeze” is the greater concern.
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The main weather event this week will be the passage of a strong cold front late Thursday night that will usher in a cold air mass for Christmas Day (Friday). This strong front will be preceded by heavy rain from later Thursday into Thursday night and it’ll turn quite mild on Christmas Eve with late day temperatures flirting with the 60 degree mark in the DC-to-Philly-to-NYC corridor. Winds will become an important factor as well later on Thursday and Thursday night with gusts past 40 mph possible and there can be a thunderstorm mixed in. On the backside of the front, temperatures will drop quickly early Friday, any standing water will freeze, and there can be a brief period of snow and/or sleet after the heavy rain event. The much colder air that arrives on Friday will stick around into the upcoming weekend and temperatures on Saturday will struggle to pass the freezing mark for highs.
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An active weather pattern continues this week in the central and eastern US with the main weather event being the late week passage of a powerful Arctic cold frontal system. This front will result in a heavy rain event for the Mid-Atlantic/NE US from late Thursday into Thursday night which will be accompanied by strong winds, mild conditions and a possible thunderstorm. With snow cover still in place in many areas north of the PA/MD border, the upcoming heavy rain event may lead to localized flooding conditions.
Behind the front, temperatures will drop sharply potentially leading to a quick ice-up in some spots and inland areas from West Virginia to central/western NY will likely see accumulating snow. In fact, there can even be some small accumulations of snow early Friday in the I-95 corridor on the heels of the frontal passage; especially, in some of the northern and western suburbs. The much colder air that arrives on Christmas Day (Friday) will stick around into the upcoming weekend and next week promises to be quite energetic with the potential of multiple storm threats to monitor.
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An active weather pattern will continue this week with a wave of energy in the Mid-Atlantic region coming our way this evening and the arrival of a powerful Arctic cold front on Thursday night. The early week upper-level wave of energy can set off some rain and/or snow shower activity tonight and unfortunately, it'll likely prevent a view of the "great conjunction" of Jupiter and Saturn. The late week Arctic front is likely to feature milder and windy conditions on its front side in this area along with periods of rain, some of which can be heavy at times. Following the passage of the strong cold front, it’ll turn much colder on Friday and there can be a snow shower or two along with stiff NW winds.
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The first major winter storm of the season for the Mid-Atlantic/Northeast US has just passed and the overall weather pattern is likely to remain quite volatile through the remainder of the month. There will be numerous strong waves of energy in coming days that will head into the eastern states. In addition, all signs point to a continuation of cold air outbreaks for the central and eastern US over the next couple of weeks. In fact, perhaps the coldest air mass of the season so far could push into the central US by the middle of next week and arrive in the eastern states by Christmas Day (Friday). There is also a chance that heavy rain and accumulating snow will accompany the arrival of the cold blast late next week in the Mid-Atlantic/Northeast US.
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A weak disturbance can cause a few snow showers this morning – perhaps even a dusting of snow in some spots - and then high pressure will build over the region later in the day and stay in control into the weekend. Despite some afternoon sunshine, temperatures will end the week at below-normal levels for this time of year. In fact, temperatures later tonight are likely to drop to some of the lowest levels of the year so far with partly cloudy skies and late night lows in the lower 20’s in some spots. A weak disturbance can cause a couple of showers of rain and/or snow on Sunday and a volatile weather pattern will continue next week and a cold blast may arrive by Christmas Day (Friday).
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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 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 breezy in the wake of the storm and overnight lows during the next couple of nights will be way down in the 20’s. A weak disturbance can bring us a few scattered snow showers late tonight/early tomorrow, but then high pressure will take control of our weather into 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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