High pressure continues to dominate the weather scene in the Mid-Atlantic region and temperatures and humidity levels will remain on the comfortable side for the next couple of days. A weak cold front approaches later in the week, but it could pass through the region on the dry side. High pressure will follow across the Northeast US for the weekend. Meanwhile, the tropics are quite active and there are two systems that bear watching for the next week to 10 days or so. The first system will take more of the southern route and it could become a player in the Caribbean Sea or near the Bahamas/Southeast US coastline by the weekend whereas the second system that is farther out in the eastern Atlantic is likely to take more of a northern track and it will head in a direction towards the US east coast – just too early to say if it’ll ever reach it. The first system has a chance to end the amazing hurricane drought in Florida where they haven't seen a hurricane of any intensity since 2005.
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A very comfortable air mass for this time of year has moved into the eastern US following a cold frontal passage and the next few days will feature pleasant temperatures and humidity levels. The next cold front will approach the area from the northwest at the end of the work week, but it'll be on the weak side. Elsewhere, the tropics are getting active and will be monitored closely as we slowly approach the climatological peak (mid-September) in tropical activity for the Atlantic Basin.
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The big weather story is that there is a very pleasant air mass headed to the eastern states for the early part of next week. High pressure will move across the region on Saturday and then a strong cold front approaches late Sunday with the threat of showers and thunderstorms. Some of the storms on Sunday can be on the strong side and some of the rain can be heavy at times. Once that frontal system passes through the region, it’ll usher in very comfortable air for the first half of next week. In fact, high temperatures should primarily hold in the lower 80's during the first half of next week.
Elsewhere, the tropics are getting quite active as we slowly approach the climatological peak in tropical activity (i.e., mid-September) with numerous waves in the eastern Atlantic and over Africa. One such tropical wave will be closely monitored as it grinds its way towards the US mainland over the next several days. It is still too far away to tell if it will actually reach the US coastline, but that possibility is certainly on the table. Indeed, signs point to a strong hurricane not far from the east coast around the time August turns into September...stay tuned.
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The back has been broken of the recent heat wave and high temperatures into the weekend should hold primarily in the 80’s. By early next week, it could turn even cooler with high temperatures possibly confined to near the 80 degree mark in the NYC region. There will be a few disturbances around that can produce more in the way of showers and thunderstorms, but much of the time over the next few days will be rain-free.
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A cold frontal system will clear the area today and the next few days will be quite an improvement over the past few in terms of temperatures and humidity levels. In fact, high temperatures for much of the rest of the week should hold in the 80’s, but the chance of showers and thunderstorms will not go away completely any time soon.
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The good news is that today will be the last day of the recent extended heat wave in many parts of the Mid-Atlantic region; especially, north of the PA/MD border. The bad news is that there will be strong-to-severe thunderstorms affecting parts of the Mid-Atlantic region before we get some relief around here.
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It’ll stay quite hot and humid today as a cold front approaches from the northwest trailing a low pressure system that will pass by well to our north. As a result, the threat for showers and thunderstorms will continue this afternoon and evening and some of the storms can be strong and some of the rain that falls can be heavy at times. It’ll turn slightly cooler for the second half of the week following the cold frontal passage.
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It’ll stay hot and humid for the next couple of days, but some relief comes by mid-week. Low pressure will trail a cold front through the region later tomorrow and it’ll turn a tad cooler for the second half of the week. The frontal system is likely to generate more storms for the region later tomorrow and some of the rain can be heavy at times.
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The excessive humidity and high heat will stick around through the upcoming weekend and there will be scattered showers and thunderstorms. These showers and thunderstorms will tend to be slow-moving and - given the high available moisture levels in the atmosphere - heavy rainfall could be the result from any individual shower or storm. Some relief in the heat is likely to arrive early next week.
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High pressure off the east coast in the classic “Bermuda high” position is pumping tropical moisture into the Mid-Atlantic region and the next few days will be quite oppressive with high heat and excessive humidity. In fact, heat indices - which are a measure of the discomfort caused by heat and humidity - will likely reach over 100 degrees during the next few days in much of the Mid-Atlantic region. This air mass is so humid with high precipitable water content that even though showers and thunderstorms will be spotty, any shower or storm that forms will be slow-moving and can produce heavy rainfall amounts in a short period of time.
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