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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A cold front will push through the region today and it can generate scattered showers and thunderstorms. High pressure will build to our north on Friday and this system should result in a nicer end to the work week and a pleasant beginning to the weekend. A broad area of moisture will slowly head this way on Sunday in a southwest-to-northeast fashion and the chance for showers and thunderstorms will increase by nightfall and that rain threat will continue early next week as well.
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The comfortable air mass of the past couple of days will give way today to warmer and more humid conditions following the passage of a warm frontal system. Showers and thunderstorms are likely to break out late today and continue tonight ahead of an approaching cold front and some of the thunderstorms can be strong with the potential of heavy rainfall. High pressure will build to our north by the weekend and this should lead to decent late week weather and likely a nice weekend.
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A pleasant air mass will stick around for another day as high pressure slowly pushes off the coastline, but warmer and more humid weather is on the way for the mid-week. A warm front will arrive later tonight and then a cold front on Thursday and the threat of showers and thunderstorms will increase noticeably later tomorrow. And yes, there is the chance that some of the storms late tomorrow and tomorrow night can be on the strong side with some heavy rainfall possible at times. High pressure to our north should bring improvement on Friday and for at least the first part of the upcoming weekend.
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A pleasantly cool air mass greets the new work week in the Mid-Atlantic region and today will be a quiet day compared to the active weather of the past several days. High pressure builds into the region from the Upper Midwest and it’ll remain comfortable through tomorrow with a cool breeze developing today and sunshine on both days. The second half of the week promises to be warmer and more humid with the threat of showers and thunderstorms making a return. Meanwhile, the 2019 Atlantic Basin tropical season “officially” began on Saturday, June 1st and there is a disturbance in the southwest Gulf of Mexico that has a chance of strengthening into a named storm in coming days as it moves northward along Mexico’s west coast and then near or along the east coast of Texas.
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High pressure will build back into the region today and it’ll be accompanied by lowering humidity, breezy and comfortably warm conditions. The weekend will begin on a decent note and then a cold front will approach on Saturday night and this will increase the chances for showers and thunderstorms. After a warm and sunny Sunday, the holiday is likely to feature partly sunny skies and the slight chance of additional showers and thunderstorms.
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One of the most well-known tornado outbreaks in Pennsylvania took place at the end of May in 1985 and, quite ominously, there are some similarities between the pattern then and the one setting up for later today and tonight. Similar to the setup back in 1985, an upper-level disturbance will drop southeastward from the Great Lakes and combine with an influx of very warm and humid air to raise the chances for severe weather here which may very well include the risk of tornadoes.
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