The day begins with some of the coolest temperatures so far this season and they’ll climb to the middle 60’s for the afternoon hours boosted by copious amounts of sunshine. Another chilly night is on tap with early morning lows on Wednesday in the low-to-mid 40’s in many suburban locations. The air mass will modify some during the mid-week and high pressure will assure quiet, dry weather through the remainder of the week. Meanwhile, a tropical system in the southwestern Gulf can become the first hurricane of the Atlantic Basin tropical season by this weekend as it begins to take on a northward track. Still several days to go, but this system could end up hitting somewhere between Louisiana and the Florida Panhandle and could ultimately bring some rainfall to the Mid-Atlantic region by the early part of next week.
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All in all, this looks like a relatively quiet and dry week for the continental US, but tropical systems may change that in a big way by this weekend or the early part of next week. There are not one, not two, but three tropical systems that will have to be closely monitored in coming days...two in the eastern Pacific and one in the Gulf. The only one of the three systems that is currently named is “Rachel” which is a minimal hurricane in the eastern Pacific that is on a seemingly harmless westerly track during the next few days. After that, however, there are signs that “Rachel” will take a drastic turn from a westerly direction to northeasterly, and this could bring its moisture field into the southwestern US and potentially, well up to the north of there.
The second tropical wave in the eastern Pacific should strengthen in the near term to become a named tropical storm and potentially, it can attain classification as a hurricane. This trailing system is likely to turn into Mexico and ultimately, its moisture field can impact the southwestern or south-central states. Meanwhile, a tropical wave now over the very warm waters of the southwestern Gulf of America can intensify into named tropical storm status and potentially into the season’s first hurricane for the Atlantic Basin as it pushes towards the northern Gulf region by the weekend…and potentially, well to the north of there.
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A cold front has pushed farther to the east of the area and high pressure will follow into the northeastern part of the nation. This high pressure system had its origins in Canada and will bring cooler temperatures here through much of the week and dry conditions as well. In fact, the coolest weather so far this season is likely during the next couple of nights with overnight lows in the 40’s.
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A cold front will reach the area early tonight and likely bring with it some shower activity and its passage late tonight will pave the way for a cooler weekend. An area of moisture in the southeastern states will consolidate along the frontal boundary zone and make a push to the north and east later in the weekend. This will likely result in some rain around here from late Saturday night into the day on Sunday. The first half of next week looks quite cool with temperatures dropping to well below normal levels by Tuesday and Wednesday and overnight lows in the 40’s.
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After a couple more warm and generally dry days in the Mid-Atlantic region, a cold frontal system will arrive on Friday night and showers are on the table. It’ll turn cooler behind the front for the weekend and we’ll have to watch a low pressure system that is likely to form along the frontal boundary zone in the southeastern states. This system will push to the northeast during the second half of the weekend and it can produce some rain around here on Saturday night and Sunday.
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The next few days should feature plenty of sunshine across the Mid-Atlantic region and warm conditions as high pressure edges into the area. A cold front arrives on Friday night and can produce some scatter shower activity and slightly cooler conditions will follow for the weekend. An area of low pressure will develop along the frontal boundary zone in the southeastern states and it could come close enough on Sunday to produce some shower activity; however, high pressure to the north will try to prevent that from happening.
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The slow-moving nor’easter that plagued the Mid-Atlantic region throughout the weekend is now gone from the picture and some improvement will take place today to go along with comfortable temperatures. In fact, the next few days will be rather comfortable as we end September and begin October. A cold front arrives at the end of the week and it can bring some shower activity to the Mid-Atlantic region on Friday night and Saturday. Another system comes out of the Gulf states on Sunday and it could produce some rain in our area for the second half of the weekend.
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The slow-moving nor’easter that plagued the Mid-Atlantic region throughout the weekend will linger today today producing plenty of clouds and the chance for some additional shower activity. The weather will improve markedly on Tuesday with the return of sunshine and the next few days should feature comfortable temperatures. A cold front arrives at the end of the week and it could bring a few showers to the area.
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Low pressure will intensify off the Mid-Atlantic coastline today and become increasingly influenced by strong high pressure to the north - a key player in this scenario - which will stymie the storm’s northward progress. The strengthening low pressure system will slowdown and then can take a loop back to the coast during the upcoming weekend. This early season nor’easter will affect much of the Mid-Atlantic region with rain and wind back inland to much of the I-95 corridor and will have its biggest impact along coastal sections where tidal flooding and beach erosion are big concerns at times of high tide. The full moon is reached on Saturday which will only exacerbate the tidal issues…expect rip currents and high surf at all the beaches up and down the east coast throughout the weekend.
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An early season nor’easter will impact much of the Mid-Atlantic region and Northeast US and likely have its greatest affects on coastal sections where tidal flooding and beach erosion are big concerns. The time period for impact by this developing storm system for the northeastern states will be from Friday night through Sunday…a prolonged event. The combination of strong high pressure centered over southeastern Canada and intensifying low-pressure over the western Atlantic Ocean will result in an extended period of onshore flow along coastal sections leading to the tidal flooding and beach erosion issues; especially, at times of high tide - and a full moon on Saturday won’t help the situation. As the Atlantic low intensifies and slowly pushes to the north, it will become increasingly under the influence of the strong high pressure ridging to its north, and this will lead to a slowdown and then likely a loop back to the coast. Rain and wind will extend inland back to the big cities in the I-95 corridor during the Friday night through Sunday time period.
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