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.
Read More
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.
Read More
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.
Read More
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.
Read More
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.
Read More
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.
Read More
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.
Read More
Low pressure will slide across southeastern Canada today and whip a strong cool front across our area later tonight. As a result, there are likely to be numerous showers later today into early tonight and perhaps multiple lines of convection (i.e., thunderstorms) passing through the region. Any shower or storm that forms later today could bring downpours to the region with the chance for localized flash flooding and there can be frequent lightning, small hail and damaging wind gusts as well in some spots. The front clears the region by early tomorrow morning setting us up for a much nicer air mass in the Wednesday-to-Friday time period, but an unusually strong summertime upper-level trough promises to bring us unstable weekend weather.
Read More
A strong cool front will pass through the region later today and it will be accompanied by numerous showers and embedded thunderstorms which can produce some heavy rainfall - some of the storms can reach strong-to-severe levels. A more comfortable air mass will arrive in the Mid-Atlantic region for the “Wednesday through Friday” time period and it will be anchored by strong high pressure that originated in southern Canada. By the weekend, a deep upper-level "negatively-tilted" trough is likely to form over the Upper Midwest and this will lead to an unstable and unsettled weekend around here with significant rainfall possible on both weekend days.
Read More
A change to a more comfortable weather pattern in the Mid-Atlantic region will begin over the next couple of days with the passage of a strong cool frontal system. Following this initial frontal passage later tomorrow, more comfortable air will push into the region for the mid and late week. By the weekend, a deep upper-level trough is likely to form over the Great Lakes and this will lead to an unsettled weekend. This initial strong cool frontal passage may result in decent rainfall around here later tomorrow with numerous showers and possible thunderstorms. The weekend system is likely to generate some more decent rainfall as well in the Mid-Atlantic region.
Read More
