Today will be another hot one in the Mid-Atlantic region with high temperatures this afternoon well up in the 90's in most locations along the I-95 corridor. A weak frontal system will slide through later today and most likely cross the area rain-free, but an isolated shower or thunderstorm cannot be ruled out this afternoon. Following the frontal passage, overall humidity levels may actually drop some later today making the heat a little easier to take and then high temperatures will be slightly reduced this weekend compared to today along with scattered showers and thunderstorms. A stronger front arrives early next week and this should continue the chances for showers and thunderstorms by late Monday and Tuesday.
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High pressure situated off the east coast in the familiar “Bermuda High” position will continue to produce very humid weather in the Mid-Atlantic region and the heat will become quite noticeable today with high temperatures in the 90’s. The threat for scattered showers and thunderstorms will continue today as a weak frontal boundary grudgingly approaches from the Upper Midwest. The heat will continue on Friday as we close out the work week, but the chances for showers and thunderstorms will diminish tomorrow. That frontal system will dissipate by the weekend providing us with little relief in temperatures and humidity; consequently, very warm and muggy conditions are likely to continue on Saturday, Sunday and Monday along with scattered showers and thunderstorms. Looking longer-term, the unfolding hotter-than-normal weather pattern in the Mid-Atlantic looks like it'll continue for much of the time from mid-July into the autumn season and the Atlantic Basin will soon see increasingly active tropical weather.
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High pressure has shifted off the east coast and from this “Bermuda High” position it will promote an increasingly moist low-level flow of air from the Deep South into the Mid-Atlantic region. At the same time, a weak cold front will slowly slide eastward into the Mid-Atlantic region over the next couple of days and this combination of increasing humidity and an approaching frontal system will increase chances for showers and thunderstorms as early as this afternoon. The hottest two days of the week are likely to be tomorrow and Friday when temperatures soar into the 90's. The front is likely to stall nearby this weekend and that will likely keep it unsettled around here into early next week.
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High pressure will shift offshore today and the clockwise flow around it will promote low-level southwesterly winds. This wind shift will act to push warmer and more humid air into the Mid-Atlantic region from the Deep South over the next couple of days. In fact, much of the second half of the week will feature high temperatures flirting with the 90 degree mark much of the time. At the same time this high pressure system shifts off the east coast, a weak cold front will slide slowly eastward across the Upper Midwest and this combination will increase our chances for showers and thunderstorms as the week progresses.
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High pressure builds into the region today and the new work week will start off rather warm, but comfortable for this time of year. The high pressure will slip off the coast on Wednesday and it’ll turn hotter with high temperatures likely reaching the 90 degree mark at mid-week. A couple of weak frontal systems will increase the chance for showers and thunderstorms later in the week.
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A significant rain event is in the offing for the DC metro region over the next 24 hours and it should arrive here at mid-day or in the early afternoon. The heaviest rainfall may actually take place in two time periods: this afternoon and then again late tonight. A warm front will edge into the area from the Ohio Valley and low pressure systems will ride along its boundary zone. High pressure will return for Wednesday and Thursday and temperatures should climb to rather hot levels for much of the second half of the week.
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The combination of an impressive upper-level short wave, a strong surface cold front, an increasingly moist southerly flow of air, and some low-level heating will help to generate showers and thunderstorms later today into tonight for the region from DC-to-Philly-to-NYC. Some of the thunderstorms that form will likely reach strong-to-severe levels with potential damaging wind gusts, downpours, hail and even isolated tornadoes. Then, after a couple of nice weekend days with noticeably lower humidity, interesting weather could return early next week. A warm front will approach from the Ohio Valley on Monday and showers and thunderstorms are likely to return to at least portions of the Mid-Atlantic region and this could turn into a significant rain event; especially, near and south of the PA/MD border.
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The combination of an impressive upper-level short wave, increasingly moist southerly winds, and a surface cold front will generate showers and thunderstorms for the I-95 corridor later today into tonight. The activity is likely to be focused in the time period from mid-afternoon to late evening and some of the storms can reach strong-to-severe levels with potential damaging wind gusts and hail. The front clears the coast by tomorrow and that'll set the stage for nice weather on Saturday and Sunday with noticeably lower humidity levels. A warm front will approach the region from the southwest early next week and the threat for showers and thunderstorms will increase again in the I-95 corridor by later Monday. This next weather event could feature some soaking rainfall in the local area.
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High pressure will generate a nice day around here and then we’ll have to deal with another frontal passage to close out the work week. As a result, scattered showers and thunderstorms are possible from late tonight into tomorrow night and some of the storms can be strong, but there should also be some sunshine as well on Friday. The bulk of the upcoming holiday weekend looks decent, but a warm front could increase chances again for showers and thunderstorms by later Monday and/or Tuesday.
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A slow-moving cold front will push far enough off the east coast today to allow for high pressure to build into the region and humidity levels should drop during the day. Tomorrow promises to be a decent day with plenty of sunshine and pretty comfortable conditions. Another front will cause some scattered shower/thunderstorm activity by Friday, but the weekend is looking pretty decent. By late in the day on Monday, a warm front will approach from the southwest and the threat for showers and thunderstorms is likely to increase.
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