Today will be on the cool side of normal for this time of year with low pressure meandering off the coast and there is the chance for some drizzle at times or an occasional shower and thunderstorm. High pressure will build into the northeastern states on Thursday and result in nice weather around here right into the upcoming. Temperatures will remain pretty comfortable for the late week and upcoming weekend with highs generally not far from the 80 degree mark. Another frontal system could arrive early next week with the threat of some shower activity by Sunday night or Monday.
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It has been quite dry in recent weeks across the Mid-Atlantic/Northeast US and this spell has changed in a big-time way during the last 24 hours with significant rainfall. The combination of a slow-moving frontal system and low pressure has resulted in as much as 8+ inches of rain in some spots and much the I-95 corridor from DC-to-Boston has been impacted. At mid-day, the heaviest of the rain is falling along coastal sections from New Jersey to southern New England, but flooding issues remain at inland locations. Residual showers are likely from later today into Wednesday and then nice weather is in store for Thursday, Friday and Saturday.
On the tropical scene, “Earl” is a strong tropical storm over the western Atlantic and moving slowly to the north. It will likely intensify into a hurricane over the next 24 hours or so - perhaps even a “major” - as it gradually turns to the northeast and likely avoiding any direct impact on the east coast. Meanwhile, the eastern Pacific features Hurricane “Kay” which could very well throw some moisture into southern California by the end of the week.
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The combination of a nearly stationary frontal system and multiples waves of low pressure will bring a soaking rainfall to the Mid-Atlantic region – something that has been quite rare in recent weeks. The frontal boundary zone will act as a conduit for low pressure systems today and tonight resulting in numerous showers and thunderstorms for the area and some of the rain can be heavy at times. A second and stronger cool front will slide through the region on Wednesday night paving the way for nice week late in the week and going into the upcoming weekend.
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Strong high pressure stays in control today and it’ll remain quite comfortable around here with low humidity levels. This same high pressure system will push off the eastern seaboard this weekend and a southwesterly flow of air will develop on its back side allowing for an increase in temperatures and overall humidity levels. A weak frontal system could spark some shower and thunderstorm activity in the Mid-Atlantic region from later Sunday into Labor Day Monday.
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A strong high pressure system that had its origins up in Canada will continue to dominate the weather scene around here over the next couple of days supplying us with comfortable temperatures and humidity levels. This same high pressure system will push off the eastern seaboard this weekend and a southwesterly flow of air will develop on its back side allowing for an increase in temperatures and overall humidity levels. A weak frontal system could spark some shower/thunderstorm activity in the Mid-Atlantic region from later Sunday into Labor Day Monday.
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A strong cool front passed through the region last night and today will become breezy and more comfortable with lowering humidity levels. A strong high pressure system that had its origins up in Canada will build eastward over the next few days and end up centered over New England by week’s end. This same high pressure system will push off the eastern seaboard this weekend and a southwesterly flow of air will develop on its back side.
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It has been quite dry in recent weeks across the Mid-Atlantic/Northeast US and some rain would be a welcome break in this pattern. A strong cool front will indeed bring some rain to the area later today and tonight and some of the thunderstorms that develop can be on the strong-to-severe side with brief downpours and gusty winds. The cool front clears the coast by morning and tomorrow will become quite breezy and noticeably less humid than the steamy conditions of both today and yesterday. The nice weather will continue on Thursday and Friday as strong high pressure builds into the northeastern states during the latter part of the week.
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A strong cool front will pass through the region tonight and it’ll usher in a much more comfortable air mass for the second half of the week with high pressure building back into the Mid-Atlantic. The front will generate showers and thunderstorms later today into early tonight and some of the thunderstorms can be on the strong side. Temperatures this afternoon will likely reach the 90’s, but highs should be confined to the 80’s for the rest of the week. It’ll be somewhat breezy on Wednesday on the heels of the frontal system passage and noticeably less humid compared to both yesterday and today.
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The tropics have come alive and there are multiple systems to monitor in coming days across the Atlantic Basin. This significant uptick in tropical activity follows a very quiet stretch during July and much of August, but the overall pattern is now more favorable for development and intensification as we get ready to cross into the month of September. The climatological peak of the tropical season in the Atlantic Basin is around the 10th of September at which time sea surface temperatures tend to reach their annual peaks.
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The new week will start off quite warm, but a strong cold front will pass through the region tomorrow night and its passage will usher in more comfortable air for the second half of the week. There can be a round of showers and thunderstorms late tomorrow and early tomorrow night associated with the cold front and some of the thunderstorms can be on the strong side. Temperatures today and Tuesday will climb to or slightly above the 90 degree mark for afternoon highs and then hold in the 80’s for the remainder of the week following the frontal passage and there be lower humidity levels. Elsewhere, the tropics have come alive and there will be several systems to monitor in coming days.
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