A nearly stationary frontal system draped across the Mid-Atlantic region will continue to act as a focal point for showers and thunderstorms today and some of the rain can be heavy at times. Given the already well-saturated grounds, any heavy rainfall can result in localized flooding conditions. Ingredients may be coming together for a severe weather outbreak in the I-95 corridor later tomorrow and tomorrow night. An unusually strong low pressure system will move over the western part of the Mid-Atlantic later tomorrow and a strong surface cold front will slide towards the east coast. At the same time, a powerful wave of energy in the upper part of the atmosphere will move over the Mid-Atlantic region. As a result, there can be an outbreak of severe thunderstorms late on Thursday that could impact the DC-to-Philly-to-NYC corridor. Once the strong cold front clears the coast by early Friday, the threat for rain will end, humidity will drop, and the winds will pick up noticeably from a northwesterly direction. High pressure is likely to take control for much of the weekend, but more rain is possible here by early next week.
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A nearly stationary frontal boundary zone is combining today with tropical-like humidity and upper-level energy to generate more showers and thunderstorms in the Mid-Atlantic region and this threat for rain will continue tonight and Wednesday as well. Some of the rain that falls will be heavy and some of the storms that form later today will reach strong-to-severe levels potentially resulting in damaging wind gusts and even isolated tornadoes. Given the already well-saturated grounds, any heavy rain can quickly produce localized flooding conditions with a couple of inches possible in a short period of time. Later in the week, the combination of a strong surface low pressure system and associated cold front with powerful energy aloft will likely result in a severe weather outbreak in the I-95 corridor from later Thursday into Thursday night before a break in the action arrives for Friday and Saturday.
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The threat exists here today for heavy showers and possible strong-to-severe thunderstorms. A nearly stationary frontal system draped across the Mid-Atlantic region will continue to act as a triggering mechanism for showers and thunderstorms and some of the rain that falls will be heavy at times. Given the already well-saturated grounds, any heavy rainfall can quickly result in localized flooding conditions and some spots could receive a couple inches of rain in a short time. A strong front may finally push through the region later Thursday night/early Friday and this could pave the way for a break in the action for later Friday and the upcoming weekend. That frontal passage, however, may come with the threat for severe weather late Thursday into Thursday night before windy and drier conditions arrive here on Friday.
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A cold front pushed into the Mid-Atlantic region late yesterday and it looks like it will have an impact around here for much of the week as it stalls out. A series of waves of energy will move along the nearly stationary frontal boundary zone and generate bands of showers and thunderstorms for the next several days, some of the storms can be strong. Any of these showers or thunderstorms can produce heavy downpours and. given the well saturated grounds, localized flooding may become an increasing concern.
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The pressure gradient between a low pressure system to our north and high pressure to our south will tighten today and this will lead to increasingly strong winds gusting to 35 mph at times. The high pressure to our south will maintain control of the weather on Saturday as it shifts offshore, but then a frontal system will close in on the area during the latter stages of the weekend. This front will stall out in or near the region setting the stage for a stormy period from Sunday to Thursday that will feature warm and humid conditions as well.
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Low pressure that is generating rain in the region will push north of here later this morning, but that will not be the end of the threat for rain. A cold front approaches the region later today and will cause scattered PM showers and thunderstorms. Any rain this morning associated with the low pressure system can be heavy at times and the same goes for any late day showers and thunderstorms associated with the cold frontal passage. High pressure builds into the area on Friday and it’ll combine with low pressure to the north to produce strong winds on Friday to go along with cooler-than-normal temperatures and comfortable humidity levels. The high shifts off the coast on Saturday and this will allow more moisture to push in this direction for the early part of next week. The threat for showers and thunderstorms that will return on Sunday will stick around on Monday and Tuesday in the Mid-Atlantic region.
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High pressure will shift offshore today, but it’ll remain close enough for another pleasant mid-June day in the Mid-Atlantic region. The weather will go downhill tonight as a warm front and associated low pressure system lift northward along the east coast leading to an increase in clouds and the threat for late night rain and thunderstorms and some of the rain can be heavy at times. The rain will continue into the morning hours on Thursday and then we'll experience scattered PM showers and thunderstorms as the surface low pressure pushes to the north of here and a cold front arrives. High pressure will build into the region for the last day of the work week and comfortable, but windy weather will prevail on Friday. It'll turn warmer on Saturday and stay rain-free, but clouds return on Sunday as will the chance for showers and thunderstorms and that threat for rain continues early next week.
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A cold front passed through the region earlier today and this will usher in a noticeably less humid air mass to go along with increasing amounts of sunshine and plenty of wind. Temperatures tonight will drop into the comfortably cool mid-to-upper 50’s for late night lows and Wednesday promises to remain quite comfortable for the middle of June. Another cold front will approach the region on Thursday and it can cause some shower and thunderstorm activity ahead of it and yes, some of this next event can feature heavy rainfall at times. High pressure will follow for the end of the work week and much of the upcoming weekend.
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The new work week gets off to a wet start in the Mid-Atlantic region as low pressure treks across the Great Lakes. A warm front will lift north through the region today and then a cold front will arrive early Tuesday. The combination of the two fronts will bring occasional showers and PM thunderstorms to the region through tonight and some of the rain will fall heavily at times. Given the already well-saturated grounds, any downpour can result in localized flooding conditions. High pressure builds into the area for later tomorrow and Wednesday with noticeably less humid air, but more showers are destined for later in the week.
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A cold front crossed the region late yesterday and a less humid air mass will push into the Mid-Atlantic region as we close out the work week. High pressure will expand to our north over the next couple of days and this should result in decent weather for much of the weekend. A broad area of moisture will slowly head this way later Sunday in a southwest-to-northeast fashion and the chance for showers and thunderstorms will increase by nightfall and that threat of rain will continue on Monday and Tuesday as well.
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