High pressure will push offshore today and this positioning will open the door for moisture to ride up along the eastern seaboard over the next few days. After patchy fog and clouds early today, sunshine will return and we'll climb towards the 80 degree mark for afternoon highs. After a rather similar type of day on Wednesday, moisture from the southeastern states will increase chances for showers and thunderstorms here on Thursday and that threat will continue into the early part of the weekend. By Sunday, high pressure will push back into the eastern US and we'll likely enjoy a nice day in the Mid-Atlantic region to close out the upcoming weekend.
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An upper-level low that was spinning over the Tennessee Valley during the past few days has finally kicked to the north and east and the result will be occasional rainfall here from later today into the beginning of the upcoming holiday weekend…maybe even a thunderstorm on Saturday. The low pressure system will push offshore late tomorrow and better weather is likely here on Sunday and Monday (Memorial Day). In fact, high pressure that builds into the southeastern part of Canada early next week will likely result in a nice stretch of weather here from the latter part of the weekend to middle of next week.
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High pressure over the southeastern part of Canada continues to influence our weather by producing an easterly flow of air and that’ll keep us on the cool side of normal for another day. An upper-level low pressure system that has been meandering over the Tennessee Valley during the past few days will finally get kicked out to the east by tomorrow – albeit in a weakened form – and this system will produce an enhanced risk of showers here from later tomorrow into Saturday. The holiday weekend will get off to that shaky start on Saturday with clouds and the threat of showers, but there should be improvement in the weather on Sunday and Monday (Memorial Day).
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High pressure over the southeastern part of Canada continues to influence our weather by producing an east-to-northeast low-level flow of air and that’ll keep us on the cool side for the next couple of days. In addition, the breeze will remain rather noticeable and there will be plenty of clouds around as a result of moisture pushing in from the western Atlantic Ocean. An upper-level low pressure system spinning over the Tennessee Valley will finally kick to the east late in the week bringing us an increased threat of showers from late Friday into Saturday. The weekend will start off kind of shaky with clouds and the threat of showers, but it should feature some improvement on Sunday and for the Memorial Day holiday on Monday.
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High pressure over the southeastern part of Canada remains a key player for the weather in the Mid-Atlantic region over the next few days as it will continue to produce an east-to-northeast flow of air, cooler-than-normal conditions, and plenty of clouds. An upper-level low pressure system will meander over the Tennessee Valley over the next couple of days and it should finally kick to the east late in the week bringing an increased threat of showers here by late Friday. Elsewhere, Tropical Storm Arthur is now moving out over the open waters of the Atlantic after hitting the Outer Banks on Monday with gusty winds and heavy rain bands.
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High pressure east of Hudson Bay in Canada remains a key player for the weather in the Mid-Atlantic region over the next few days as it will help to produce an east-to-northeast flow of air, cool conditions, and plenty of clouds. Meanwhile, an upper-low over the Midwest will meander over the Tennessee Valley over the next few days and it could finally kick to the east late in the week bringing the threat of showers to the region. Tropical Storm Arthur – the first tropical system of the 2020 Atlantic Basin season – will impact the Outer Banks of North Carolina today and then curve to the east and out-to-sea on Tuesday.
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High pressure over the western Atlantic will pump much warmer air into the Mid-Atlantic region today on southwesterly winds and we’ll experience our first 80+ degree day of the season. A cool front will arrive late tonight and there can be showers and thunderstorms ahead of it anytime from later today through the late evening hours. This front will stall nearby on Saturday and low pressure will drift along the boundary zone on Sunday producing more clouds in the region, a threat of showers, and overall cooler conditions. It’ll turn even cooler during the early part of next week and an overall damp weather pattern will continue through at least mid-week. Elsewhere, a tropical system is very likely to form this weekend over the southwestern Atlantic – the first of the 2020 Atlantic Basin tropical season - and it may very well contribute to the formation of a coastal storm in the Mid-Atlantic region during the middle of next week.
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The east coast of the US will be an interesting area to monitor over the next week or so in terms of the weather as we’ll see a tropical system just east of Florida in the near term and then perhaps a coastal low by the end of next week which could impact the Mid-Atlantic. Low pressure is now forming over the Florida Straits and it’ll intensify over the next 24-48 hours as it makes a move to the northeast over the relatively warm waters of the southwestern Atlantic Ocean. This system may come uncomfortably close to the US east coast in coming days and may play a role in the development of a coastal low by the end of next week in the Mid-Atlantic region.
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High pressure has pushed off the eastern seaboard and this will result in some dramatic temperatures changes over the next 24 hours or so. Temperatures today will jump well up into the 60’s as low-level winds turn to a more southerly direction and then as southwesterly flow intensifies on Friday, they’ll climb to the lower 80's for afternoon highs. A cool front will cross the region on Friday night perhaps with a few showers and an embedded thunderstorm and then it’ll stall just to our south as we begin the weekend. By Sunday, low pressure will form along this stalled-out frontal boundary zone and clouds will return to the region along with the threat of showers and it’ll turn cooler as we close out the weekend. Meanwhile, a tropical system will form this weekend over the southwestern Atlantic and slide to our east; however, it may indirectly contribute to the development of a mid-week coastal low.
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High pressure will push off the east coast by tomorrow and this will result in some dramatic temperatures changes at week’s end. Temperatures will become warmer on Thursday afternoon as low-level southwesterly flow develops and then they’ll soar on Friday to summer-like values near 80 degrees. With the significant warm up at the end of the work week will come an increased chances of showers and thunderstorms late on Friday and during Friday night.
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