There is a growing chance that a prolonged and significant rain event is coming to the Mid-Atlantic region…something not seen in these parts in quite awhile.
While there can be some shower and thunderstorm activity from later today into later Saturday, the main event likely begins on Saturday night with heavier and steadier rainfall and then rain is likely to be a threat on Sunday, Monday, Tuesday, and perhaps even Wednesday as well. A warm front lifts through the region tonight with some shower activity and then Friday will turn into a very warm and humid day with scattered showers and thunderstorms…much of the day should be rain-free. On Saturday, a cold front will head towards the eastern US and showers and thunderstorms will become increasingly likely by the time we get to Saturday evening. Some of the rain late Saturday/Saturday night can be heavy at times with the arrival of the cold front and there can be strong-to-severe thunderstorm activity included.
Looking ahead, the upper-level pattern will evolve into an “omega-block” situation and one that can produce occasional rain and cooler conditions in the Mid-Atlantic region from Sunday into the middle of next week. Some of this rainfall during the first half of next week can be heavy at times and this unfolding scenario could put a real dent in any drought conditions that remain in the area.
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Powerful thunderstorms that pounded western and central Pennsylvania last night fell apart by the time they reached the eastern third of the state due to the very dry air in place around here and also the overall weakening of the support in the upper atmosphere. High pressure returns to the area today as a weak cold front settles just to our south. This same frontal system will turnaround later tomorrow and lift through the area as a warm front with some shower activity and perhaps a thunderstorm. It’ll turn out quite warm and downright humid on Friday with an occasional shower and an afternoon or evening thunderstorm is possible; however, much of the day should be rain-free. More widespread shower activity is expected for Saturday as a cold front arrives and then an upper-level low form in the eastern US and produce additional unsettled weather around here during the early part of next week.
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A warm front lifts through the area today and it will become quite warm with afternoon highs near 80 degrees and there should be plenty of sunshine with increasing southerly winds. A cold front arrives tonight and it can bring with it some shower activity...perhaps even an isolated thunderstorm or two. High pressure returns at mid-week, but the weather then becomes quite unsettled for the late week and early part of the weekend with a couple of low pressure systems impacting the Mid-Atlantic region.
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There have been numerous colder-than-normal air masses in recent weeks pushing into the central and eastern US from Canada and also into the western US from the eastern Pacific Ocean. The continuing influx of these colder-than-normal air masses along with an active jet stream has led to numerous severe weather outbreaks in recent weeks. Indeed, severe weather is likely later today and tonight with a focus on the Upper Midwestern states of Minnesota, Wisconsin, Iowa and Illinois though some severe thunderstorm activity can extend all the way south and west to the south-central states of Texas and Oklahoma. The overall pattern that has produced these occasional cold air and severe weather outbreaks in the US looks quite likely to last at least into the first part of May with a risk next Monday and Tuesday in the nation’s mid-section.
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The week starts off with high pressure in control and there will be plenty of sunshine today with temperatures likely peaking in the low-to-mid 70’s during the afternoon hours after a chilly start. After a dry and warm day on Tuesday, showers will be a threat on Tuesday night with the arrival of a frontal system. High pressure returns for the mid-week and partial sunshine on Wednesday should boost temperatures to the middle 70’s. Low pressure and associated frontal systems will result in unsettled weather conditions later this week into the weekend with the threat of showers from time-to-time and perhaps a thunderstorm or two.
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High pressure will push offshore today and that’ll open the door for a couple of frontal systems to impact the region with some shower activity from later tonight into Saturday. First, a warm front will lift through the area later today and then a cold front will follow later tomorrow. The combination of the two frontal systems will result in occasional showers here from later tonight into Saturday and there can be a thunderstorm or two mixed into the picture. High pressure to our northwest takes control of the weather for Sunday, Monday and Tuesday and it’ll become increasingly warm with 80+ degrees for highs by the middle of next week. The next threat of showers will come at mid-week when another frontal system slides towards the eastern seaboard.
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High pressure remains in control for another day providing us with plenty of sunshine and pleasantly warm temperatures reaching well up in the 70’s during the afternoon hours. A low pressure system and its trailing cold front will bring us occasional showers from later tomorrow into Saturday and there can be a thunderstorm or two mixed into the picture. High pressure to our northwest will take control of the weather for Sunday, Monday, and Tuesday with plenty of sunshine each day and increasingly warm conditions and the next shower threat likely holds off until the middle of next week.
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High pressure remains in control for the next couple of days providing us with plenty of sunshine and pleasantly warm temperatures reaching well up in the 70’s. A low pressure system and its trailing cold front will bring us a threat of showers from late Friday into Saturday and then Canadian high pressure to our northwest will take control of the weather for Sunday and Monday with plenty of sunshine, breezy, and a bit cooler conditions.
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A weak cool front is passing through the region and it’ll have little impact on overall temperatures. In fact, with the help of some sunshine today, and plenty of sunshine on Wednesday and Thursday, temperatures should climb to well up into the 70’s each day. Low pressure will impact the area from late Friday into Saturday with occasional showers likely and then Canadian high pressure takes over for the second half of the upcoming weekend.
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No big storms or strong fronts to deal with during the next few days as weak high pressure shifts offshore today and then a weak frontal system approaches the area tonight. There will be plenty of clouds around today and a few showers are on the table tonight as the weak front crosses the area. The next few days will be quite warm with highs well up in the 70’s on Tuesday, Wednesday, and Thursday and then low pressure may produce showers around here at the end of the week and early part of the weekend.
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