A low pressure system will form later today along the Delmarva/New Jersey coastal region and it will result in more downpours, gusty winds and perhaps even a period of steady, heavy rain for much of the I-95 corridor. In recent days, the axis of heaviest rainfall has extended from the Chesapeake Bay/DC metro region to central Pennsylvania, but this coastal low pressure system will bring some heavy rainfall to places farther east such as New Jersey and New York City.
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A very wet weather pattern in the Mid-Atlantic region will continue for another 24 hours as a deep upper-level trough edges northeastward from the Southeast US. The movement to the northeast of this upper-level feature will act to provide additional "lift" to the atmosphere which should be enough to continue the chance for tropical downpours in the DC-Philly-NYC corridor later today. The threat of showers and thunderstorms will continue here on Thursday and Friday; but the rain will be less widespread and there should be some sunshine on each day. High pressure edges in for the weekend which is looking pretty decent at this point, but more wet weather is likely next week.
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A very wet weather pattern in the eastern US will continue for the next couple of days as deep tropical moisture continues to flow northward right up the along eastern seaboard from the tropical Atlantic to the Northeast US. The threat for showers and thunderstorms will be greatest here on Wednesday and Wednesday night aided by the movement to the northeast of an unusually strong upper-level trough of low pressure over the Southeast US. Flooding potential here will increase on Wednesday and Wednesday night as any shower or thunderstorm that forms in this tropical environment can produce heavy rainfall amounts in a short period of time..
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A very wet weather pattern will continue through mid-week in the Mid-Atlantic region as the combination of an upper-level trough over the Southeast US and a Bermuda High over the Atlantic pumps in deep moisture from the tropical Atlantic. There will be numerous rounds of showers and thunderstorms through Wednesday night and given the tremendous amount of available moisture in the atmosphere, any shower or storm can produce heavy rainfall amounts in a short period of time. The threat of localized flooding will remain high through mid-week as grounds are thoroughly saturated and several inches of additional rainfall are possible.
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A very wet weather pattern in the eastern US that began with the weekend coastal storm will continue through the first half of the week as deep tropical moisture continues to flow northward from the tropical Atlantic to the Mid-Atlantic. The threat for showers and thunderstorms will continue each day through mid-week aided by an unusually strong upper-level trough of low pressure that will be relatively stationary for the next few days over the Southeast US. Flooding potential will remain high as any shower or thunderstorm that forms can produce heavy rainfall amounts in a short period of time on top of already well-saturated grounds.
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A very wet pattern is unfolding for much of the eastern third of the nation and it’ll begin this weekend with the formation of a deep “negatively-tilted” upper-level trough of low pressure over the Ohio Valley and a significant east coast storm. The upper-level system will slowly dig into the Southeast US over the next few days and ultimately contribute to an influx of moisture from the tropical Atlantic to the Mid-Atlantic. The strong coastal storm will generate heavy rain and strong winds later tomorrow and tomorrow night from the DC-to-Philly-to-NYC corridor to coastal sections from Virginia-to-Long Island.
The coastal storm will then ride northward late tomorrow night into interior sections of New England where it will weaken later Sunday. The passage of the coastal storm; however, will not end the rain threat for the Mid-Atlantic region. In fact, this significant coastal storm will just be the beginning of a very wet pattern in the eastern US for the next week or so with localized flooding potentially becoming a serious problem in many areas. By the time the latter part of next week rolls around, some spots in the eastern US may have seen the accumulation of at least half a foot of rain.
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A much wetter overall weather pattern for the eastern US will begin this weekend and continue right through next week and it will get underway with the formation of a strong coastal storm. An unusually deep upper-level trough will form over the Upper Midwest early this weekend and this will become a slow-moving system and a major player in the upcoming week. In addition, a strong surface coastal low pressure system will form on Saturday potentially causing significant rainfall and gusty winds from the immediate I-95 corridor to the coastline from Virginia-to-southern New England with scattered power outages on the table. Even after this coastal storm exits the region on Sunday, the threat for showers and thunderstorms will continue not only on Sunday, but right through next week as deep tropical moisture will persistently flow northward from the tropical Atlantic to the Mid-Atlantic. Flooding may very well become a serious issue during this very wet stretch with several inches of rain quite likely in the coming days.
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A very wet pattern is unfolding for much of the eastern third of the nation and it’ll begin this weekend with the formation of a deep “negatively-tilted” upper-level trough of low pressure over the Ohio Valley. This upper-level system will become a slow-mover and it will contribute over the next several days to a persistent flow of air into the Mid-Atlantic region from the tropical Atlantic. In addition, there will be the development of a strong surface low pressure system along the Mid-Atlantic coastline on Saturday which will likely bring heavy rainfall and strong winds to coastal sections from the Delmarva Peninsula-to-southern New England and perhaps even inland to the immediate I-95 corridor. By the time next weekend rolls around, several inches of rain could have fallen in much of the eastern US and localized flooding may become a serious concern.
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A much wetter overall weather pattern will set up for the eastern third of the nation this weekend and likely continue right through next week. An unusually deep upper-level trough is likely to form over the Upper Midwest early this weekend and this will become a slow-mover. In addition, a strong coastal low pressure system may very well form in later Saturday potentially causing some significant rainfall and gusty winds for the I-95 corridor region to the coastline. As a result of this unfolding change to the overall weather pattern, the threat for showers and thunderstorms will increase later in the day on Saturday and then likely continue through much, if not all, of next week.
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A strong cool front passed through the region in the overnight hours and has ushered in less humid and more comfortable air for the next few days. This air mass will be anchored by a strong high pressure system that originated in southern Canada and will work its way to the Northeast US. By the early part of the weekend, a much wetter overall weather pattern will set up for the eastern seaboard. An unusually deep upper-level trough is likely to form over the Upper Midwest and this will become a slow-mover. In addition, a strong coastal low pressure system may very well form in the Saturday night time frame potentially causing problems from the Jersey coastline to Long Island. As a result of this unfolding pattern change, the threat for showers and thunderstorms will increase later in the day on Saturday and likely continue through much, if not all, of next week.
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