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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A warm front is passing through the region this morning with some shower and thunderstorm activity and it'll turn warmer and more humid as the day progresses. In addition, as a cold front approaches early tonight, this change in air mass will set the stage for potentially strong-to-severe thunderstorm activity later today and tonight across the Mid-Atlantic and Northeast US. Low pressure has pushed northeastward out of the central Plains and into the western Great Lakes and it will take a sharp right turn later today and head towards the Northeast US. This low pressure system will strengthen as it approaches the NE US into what is likely to be a rather favorable environment for severe weather, including the risk of tornadoes. High pressure takes over on Friday and the work week will end with lowering humidity and comfortably warm conditions.
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