A cool front will approach the region later today and then move slowly across the area during the next 24-36 hours. As such, it’ll stay unsettled around here with the chance of showers and thunderstorms later today, tonight and on Friday though much of the time will be rain-free. The cool front will push far enough to the south and east by the weekend to allow for the arrival of a comfortable air mass into the Mid-Atlantic region. After a flirtation with the 90 degree mark later today, temperatures should generally be confined to the 80’s for afternoon highs on Friday, Saturday and Sunday and even into the early part of next week.
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A meandering frontal system and a couple of upper-level disturbances will keep us unsettled over the next couple of days with a shot at some shower and thunderstorm activity from late today into Thursday. Another chance of showers and thunderstorms will come on Thursday night and Friday with the next cool front and it looks like that system will clear through here by early Saturday. As such, a comfortable air mass should push into the Mid-Atlantic region for both Saturday and Sunday with high temperatures confined to the 80’s on both days.
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There have been many frontal passages in recent weeks across the Mid-Atlantic region that have produced showers and thunderstorms and, in some cases, severe weather. While these showers and thunderstorms have often been quite “numerous” to the south of the PA/MD border, they have usually been “isolated-to-scattered” across Pennsylvania, New Jersey and New York City. These “hit or miss” variety showers and thunderstorms are frustrating many residents to the north of the PA/MD border with lawns now beginning to turn brown in many areas. There will be additional chances of showers and thunderstorms in coming days, but still no guarantees; especially, to those north of the Mason-Dixon Line.
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Temperatures will actually stay below-normal today in most spots of the Mid-Atlantic region with highs, for example, confined to the lower 80’s in the DC metro area where normal highs at DCA are about 90 degrees. Given the general west-to-east air flow in the upper part of the atmosphere, the front that came through last night will have difficulty pushing too far to the south and east over the next 24 hours or so and is likely to stall out in the southern Mid-Atlantic region. As such, it’ll stay unsettled around here for the remainder of the work week with additional chances for showers and thunderstorms to go along with overall rather seasonal temperatures. Another cool front will head this way late in the week and all signs point to this next one having enough “push” behind it to bring another comfortable air mass this way for the upcoming weekend.
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The first extended heat wave of the summer in the Mid-Atlantic/Northeast US will break today with the arrival of a frontal system that is currently producing showers and embedded thunderstorms in upstate Pennsylvania. The chance of showers will increase in the I-95 corridor by the early-to-mid afternoon and while not every location will get hit, a strong-to-severe thunderstorm is possible right into the late evening hours. Much more comfortable conditions will take place on Tuesday with below-normal temperatures and another cooler-than-normal air mass is destined to come this way for the upcoming weekend. The past weekend featured some excessive heat in the DC-to-Philly-to-NYC corridor with a run to the 100 degree mark on both days.
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The first extended heat wave of the summer in the Mid-Atlantic region will break today with the arrival of a frontal system that will generate showers and perhaps a strong-to-severe thunderstorm or two. It’ll remain pretty hot today though not as excessive as the past weekend and it’ll continue to be very humid and quite breezy. Much more comfortable air will arrive in the region by tomorrow with temperatures likely confined to the low-to-mid 80’s for highs on Tuesday afternoon…actually below-normal for this time of year. The front stalls out nearby on Tuesday and its proximity for the remainder of the week will keep it quite unsettled here to go along with seasonal temperatures. One final note, the high temperatures for Saturday and Sunday in the I-95 corridor were as follows: Philly: 98/99 degrees, DCA: 96/94 degrees, Central Park (NYC): 95/95 degrees and LaGuardia Apt. (NYC): 97/98 degrees.
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It’ll remain hot today in the Mid-Atlantic region, but overall humidity levels should be somewhat reduced compared to yesterday’s high values following the passage of a weak cool front (more like a “dew point” front and not a “temperature” front). The weekend will feature high heat and humidity with temperatures climbing well into the 90’s on both days and a surge to near 100 degrees is not out of the question in some spots. The next cool frontal system should bring some shower and thunderstorm activity to the region on Monday and its ultimate passage will bring us relief in the temperature department for Tuesday and Wednesday.
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The Mid-Atlantic region has enjoyed a relatively normal summer so far with respect to overall temperatures featuring close-to-normal readings in the month of June and also for the first few weeks of July. We are now, however, in an extended stretch of hot and humid weather that will last right through the upcoming weekend and it looks like the heat will peak this weekend. In fact, high temperatures on Sunday afternoon could flirt with the 100 degree mark in some spots ahead of a cool front that should bring some relief by Tuesday and Wednesday.
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The first extended heat wave of the season in the Mid-Atlantic region will continue through Sunday. Temperatures today will climb well into the 90’s and the humidity will be quite oppressive. A weak frontal system will generate scattered afternoon/evening showers and thunderstorms. Any thunderstorm that does form later today can be on the strong side. It remains hot on Friday, but the humidity should be down some compared to today’s very uncomfortable levels. The heat is likely peak this weekend with high temperatures on Sunday afternoon possibly flirting with the 100 degree mark. Another front will enhance chances for rain late Sunday and especially on Monday and its ultimate passage will bring us some relief in the temperature department for Tuesday and Wednesday.
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Temperatures should climb to or slightly above the 90 degree mark later today and it looks like the heat and humidity will last right through the upcoming weekend. In fact, the heat is likely to peak this weekend in the Mid-Atlantic region with highs here on Sunday afternoon potentially in the mid or upper 90’s. The nights will not offer much in the way of relief through this stretch as temperatures may only drop to the upper 70’s in parts of the metro region. A weak frontal system will enhance chances slightly for showers and thunderstorms tomorrow afternoon and then another front could renew the threat of rain late Sunday and/or Monday. Looking ahead, relief is likely to reach us early next week following the passage of a cool frontal system.
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