Strong high pressure draped across southeastern Canada will keep a cool, moist ocean flow of air in place for the next couple of days in the DC-to-Philly-to-NYC corridor. As a result, temperatures will remain on the cool side; especially, when compared to the recent unusual warmth, and there can be some light rain or drizzle at just about any time into tomorrow night. By the weekend, this strong high pressure system will push off the coastline and our low-level winds will shift to more of a south-to-southwest direction and we’ll turn warmer perhaps reaching the 80 degree mark by Sunday afternoon. Another cold front will arrive here on Sunday night – perhaps with some light rain shower activity – and then strong high pressure will expand eastward from the Upper Midwest and we’ll turn cooler again to begin the new work week.
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October has been well above-normal so far in the I-95 corridor (PHL +8.2°, DC +7.1°, NYC +8.7°), but the next few days will feature some cooler air as an ocean flow develops as a result of strengthening high pressure across southeastern Canada. A cold frontal passage will usher in the cooler air mass and it should generate occasional showers today and tonight. The next couple of days will feature plenty of clouds, a cool breeze from off of the ocean, and the threat for some light rain or drizzle at times. Warmer weather will return to the region this weekend along with an increase in the amount of sunshine for both days.
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Today will turn out to be quite warm with highs near the 80 degree mark, but a cold front will slide through the area and the rest of the work week will become noticeably cooler. High pressure from Canada will try to take control of the weather for the second half of the week, but it’ll stay somewhat unsettled with an ocean flow and the chance for some light rain or drizzle at times in the cooler air mass.
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The remains of Hurricane Nate will bring some much needed soaking rain to the region today alleviating the dry conditions of recent weeks, but most, or all, of it should be out of here in time for the Yankees playoff game tonight. High pressure will build back into the region by mid-week and our temperatures will become quite comfortable for this time of year during the latter half of the week, but it’ll stay unsettled with some light rain or drizzle possible within the cooler air mass.
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Tropical Storm Nate is headed north-northwest today towards the eastern Yucatan Peninsula and then will move into the central Gulf of Mexico on Saturday. Nate could very well intensify into hurricane status by late Saturday over the warm waters of the central Gulf of Mexico and then continue northward right towards the Louisiana/Mississippi border region by very early Sunday. After that, Nate is likely to take a turn to the northeast and move through the Tennessee Valley on Monday and into the interior part of the Mid-Atlantic. This potential path will likely bring some significant rainfall to the Mid-Atlantic region later Sunday night and Monday - which is welcome news for the area considering the very dry weather of the past few weeks.
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The Mid-Atlantic region has been very dry over the past few weeks with high pressure generally in control of our overall weather pattern. This dry spell could come to an end over the next several days with some scattered shower activity in the near term and then more significant rainfall is possible early next from the remains of what is now Tropical Storm Nate. This tropical system is likely to head in a general northward direction over the next couple of days - likely moving over the Yucatan Peninsula region of Mexico - and then spill out over the Gulf of Mexico by the weekend. By later in the weekend, Tropical Storm Nate could very well reach hurricane status as it likely heads towards the central Gulf states of Louisiana, Mississippi and/or Alabama - a bit farther west than earlier thoughts of the Florida Panhandle.
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Strong high pressure continues to reside over the Northeast US and southeastern part of Canada and it will keep us comfortably warm and generally rain-free during the next couple of days. There are signs that a tropical system now over the southwestern Caribbean Sea could strengthen as it moves northward over the next few days and very well could be situated over the Gulf of Mexico this weekend as a hurricane (would be named "Nate"). The potential even exists for tropical moisture from this system to ride up northward through the eastern US states during the early part of next week and producing some much needed rain around here in the Mid-Atlantic region.
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Strong high pressure will remain in control of our weather through at least mid-week and our dry pattern will continue. There will be a frontal system that approaches on Thursday, but it looks to be weak and will likely be able to only produce an isolated shower or two late in the week. Temperatures will continue to be quite comfortable through the remainder of the week with no uncomfortable heat or humidity expected in the Mid-Atlantic region.
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The week will begin on a nice note with plenty of sunshine and comfortable conditions as high pressure continues to dominate the scene for the northeastern portion of the country. By the middle of the week, this high pressure system will shift off the coast and the result will be slightly warmer weather for a couple of days. A weak frontal system will push through the area later in the week and temperatures will trend down again.
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Cooler air moved into the Mid-Atlantic region yesterday and there will be a reinforcing cold front passing through this area by the early part of the weekend. As a result, temperatures are likely to generally hold in the upper 60’s this weekend for highs as strong high pressure builds into the Northeast US.
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