A major coastal storm is in the works for later Sunday and Sunday night in the Mid-Atlantic/Northeast US and it will feature the entrainment of tropical moisture to its south and east and the intrusion of cold, polar air to its west and north. This coastal storm could bring several inches of rain to portions of the interior Northeast US, significant rainfall to the DC-Philly-NYC corridor, and even some accumulating snow to the higher elevations of the Appalachians. Strong winds will also become an important feature in this unfolding scenario; especially, for coastal New Jersey, Long Island and southern New England.
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A major coastal storm is in the works for the Sunday/Monday time frame in the Mid-Atlantic/Northeast US and it will likely feature the entrainment of tropical moisture to its south and east and the intrusion of cold, polar air to its west and north. This potential storm could bring several inches of rain to portions of the Northeast US, significant rainfall to the DC-Philly-NYC corridor, and even some accumulating snow to the higher elevations of the Appalachians.
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The wild weather pattern that we talked about last week has begun to unfold and the eastern US will have some very interesting weather later this weekend and early next week. A significant rain event is increasingly likely for the Mid-Atlantic region late in the weekend as deep upper-level low pressure forms in the eastern US and strong surface low pressure develops near the coastline. This potential major coastal storm may very well be juiced up by tropical moisture as the western Caribbean Sea is currently showing some life and this particular tropical system may just ride up along the east coast and get entrained into the coastal storm. In the meantime, cold air will be charging to the southeast by the latter part of the weekend across the Upper Midwest and Great Lakes. This incoming cold air mass will also get involved in the overall pattern and the result could be some snow accumulation in the higher elevations of West Virginia and southwestern Pennsylvania. The colder-than-normal air that arrives on Monday in the I-95 corridor behind the passage of a strong cold front looks like it’ll stick around for awhile including for Halloween day (Tuesday). In fact, the first half of November is likely to feature multiple cold air outbreaks for the central and eastern US.
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High pressure will build into the region for the rest of the work week and it’ll be a bit cooler than recent days. It is looking increasing likely that a significant rain event is going to unfold for the Mid-Atlantic region by Sunday – all ahead of the next cold shot - as low pressure forms along an incoming frontal boundary zone. On Monday, NW winds will usher in cold air for this time of year after the passage of a strong cold front.
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A strong cold front is slowly working its way through the region today and it could generate more scattered showers this morning, but most of the action has shifted to our northeast. Cooler air will move into the area late tonight and on Wednesday following the frontal passage and it’ll stay on the cool side on Thursday and Friday as well. By the weekend, attention will turn upstream to yet another strong cold front that will be dropping southeast from the Northern Plains. This next front could ultimately result in significant rain for the I-95 corridor on Sunday and it then might be followed by another cold shot for the early part of next week.
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The quiet, dry and warm weather pattern of recent weeks in the Mid-Atlantic region is coming to an end and a soaking rain event is on the way with the possibility for some strong-to-severe thunderstorms as well. The biggest threat from the potential thunderstorms in the I-95 corridor appears to be damaging wind gusts as there will be a rapidly strengthening jet streak at lower levels of the atmosphere tonight and Tuesday and this could translate down to the surface. Following the rain event, cooler air will slide into the Mid-Atlantic region for a few days, but the core of this chilly air mass is headed towards the Southeast US where the difference from normal will be much more noticeable. Looking ahead, another strong cold front will approach the region from our northwest later this weekend and this could lead to another significant rain event on Sunday and which may then be followed by another chilly shot of air early next week.
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The quiet, dry and warm weather pattern we’ve enjoyed for much of October is going to undergo a change and there is likely to be some wild weather over the next few weeks with soaking rain events, possible strong thunderstorm activity, and multiple cold shots coming into the eastern and central US. A strong cold front is diving southeastward today from the Upper Midwest and it’ll help drive some moisture northward from the Gulf of Mexico over the next 24 hours. As a result, a soaking rain event is likely around here from later tonight into tomorrow night and there can be some strong-to-severe thunderstorm activity as well. Once the front passes through the region late tomorrow night, a chilly air mass will push in at mid-week and keep us cool until the weekend. It is likely to modify over the weekend in terms of temperatures, but another rain event is possible late in the weekend and that may be followed by an impressive cold shot early next week - just in time for Halloween.
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This week has been about as quiet as it gets this time of year in the eastern part of the nation with very strong and relatively stationary high pressure dominating the scene for several days. In fact, that same high pressure system will continue to control the weather for the Northeast US/Mid-Atlantic region right through the upcoming weekend. Beyond that, however, a rapidly changing weather pattern will likely result in some wild weather for the eastern states over the next couple of weeks that could include soaking rain, possible severe thunderstorm activity, and occasional impressive cold air outbreaks.
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Strong high pressure stays close to the Mid-Atlantic region through the weekend and each day should feature some sunshine and comfortable temperatures. A cold front will slowly approach the region from the Upper Midwest early next week and this could tap into Gulf of Mexico moisture and ultimately result in a soaking rain event for much of the eastern US in the Tuesday time frame. It’ll turn cooler at mid-week following the Tuesday rain event.
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Strong high pressure stays close to the Mid-Atlantic region for the remainder of the week and even through the upcoming weekend. Each day through Sunday should feature at least some sunshine and temperatures will remain rather comfortable for this time of year. A cold front will slowly approach the region from the Upper Midwest early next week and this could tap into Gulf of Mexico moisture and ultimately result in a soaking rain event for much of the eastern US in the Tuesday/Wednesday time frame.
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