After the much cooler weather of yesterday, warmer air will begin to push northeastward today on a change of wind direction to southerly from Monday's onshore flow and then a surge of unseasonably warm air is likely to arrive here on Wednesday. The surge of warmth on Wednesday will follow the passage of a northward-moving warm front and temperatures later tomorrow are likely to end up in the lower 90's with the threat of PM showers and thunderstorms. A cold front will drop to the southeast on Thursday from the Great Lakes region and high pressure will begin to build into southeastern Canada. As a result, temperatures will begin a downward trend late in the week as onshore flow forms in the Mid-Atlantic region and low pressure is likely to result in a chilly rain event from Friday into Saturday. Improving conditions are possible later this holiday weekend although it'll stay on the cool side.
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Anyone who has been a long-time resident of the Mid-Atlantic region knows that despite being dubbed the “first weekend of the summer”, Memorial Day weekend can actually turn out to be quite ugly with chilly and damp conditions. Indeed, the overall pattern appears to be setting up for just such weather conditions in the Mid-Atlantic region – at least for part of the upcoming long holiday weekend. All it takes this time of year to go from warm weather in the 70’s and 80’s to chilly weather in the 50’s and 60’s is for a strong high pressure system to build into the Northeast US or southeastern Canada. Indications are that this very well may happen this weekend likely resulting in anything but beach type weather for the Mid-Atlantic region.
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A much different weather picture today as we start the new work week compared to the past few days thanks to high pressure building to our north across southeastern Canada. As a result, an onshore low-level flow of air has formed and this has pushed in much cooler air to the Mid-Atlantic region from the western Atlantic Ocean. A warm front will lift northward through the region by early Wednesday and temperatures could soar at mid-week, but that surge in warmth will be rather short-lived. In fact, early signs for the long Memorial Day weekend are not all that promising with cool, damp conditions possible for at least part of the time.
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Strong and sprawling high pressure over the northeastern quadrant of the nation will continue to be the main player around here during the next several days and a key to the season’s first extended unseasonably warm stretch of weather. There will be a back door cool front that pushes from east-to-west across the region later today and low-level easterly winds will develop and likely knock off at least a few degrees in the temperature department by later tonight with overnight lows in the upper 50’s. A stronger and more conventional cool front is likely to drop southeast from the Great Lakes region at the end of the weekend and its passage should usher in somewhat cooler air for the early part of next week following a very warm weekend.
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Sprawling high pressure will remain near the Mid-Atlantic region for the next several days and will be the main player in the overall weather pattern which should result in temperatures climbing to 90+ degrees in the DC metro region. There will be a back door cool front to monitor by later tomorrow which could knock a few degrees off our temperatures by week’s end and then another cool front from the northwest should arrive by early next week.
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A surge in temperatures is about to take place in the Mid-Atlantic region with temperatures climbing well into the 80’s at mid-week along the I-95 corridor. Temperatures have yet to reach the 90 degree mark officially this spring in the I-95 corridor, but they have a pretty decent shot this week in the Washington, D.C. metro region and an outside shot in Philly and New York City. One wrench in the unseasonably warm outlook is the possibility that a back door cool front could knock off several degrees later in the week; especially, in the New York City metro region and coastal New Jersey.
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High pressure will remain near the Mid-Atlantic region for much of the week and will be the main player. There will be a couple of weak troughs of low pressure to deal with over the next few days and perhaps a stronger back door cool front this weekend. In the temperature department, the second half of the work week should feature the warmest weather we’ve seen this season with afternoon highs approaching the 90 degree mark.
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High pressure will remain near the Mid-Atlantic region for much of the week and will be the main player. There will be a frontal system around the area later today that could touch off an isolated shower and we’ll have to watch for a possible back door cool front late in the week or during the upcoming weekend. In the temperature department, the second half of the week should feature the warmest weather we’ve seen this season with afternoon highs near the 90 degree mark.
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High pressure over the Midwest will remain in control of our weather today and through the upcoming weekend; however, showers and thunderstorms cannot be ruled out. Temperatures will edge higher over the next couple of days into the lower 70’s this afternoon and to the middle 70’s on Saturday afternoon. Weak low pressure and its associated frontal system could produce some shower activity in the region on Sunday and Monday and an isolated thunderstorm cannot be ruled out as well.
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High pressure over the Midwest will remain in control of our weather today and likely right through the upcoming weekend although a shower or thunderstorm cannot be ruled out on either day. Temperatures will edge higher over the next few days coming close to 70 degrees later today and then into the 70’s on Friday, Saturday and Sunday. Weak low pressure and its associated frontal system could produce some shower activity in the region during the early part of next week.
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