Slow-moving low pressure will pull away from the region today, but it’ll stay quite windy and cold despite plenty of sunshine. High pressure will be in control of the weather for the next couple of days, but then a storm system from the southern states could make a move in our direction at the end of the week. In fact, there is the chance for some significant precipitation from this storm system in the Friday night/Saturday time period and it could be cold enough for a changeover to sleet and/or snow on the back end of the system. Longer term, the overall weather pattern that has evolved should continue to bring more frequent cold air outbreaks into the central and eastern US into at least the middle of the month of December.
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A strong cold front passed through the region late yesterday as a powerful storm system pushed northward in the eastern Great Lakes. The upper-level low associated with this strong storm is a slow-mover and it’ll remain unsettled around here today and noticeably colder than yesterday. There is the chance for an additional rain shower or two and there can be flakes mixed in at times well to the north of the District. The overall weather pattern is changing to one that will result in more persistent cold in coming days across much of the central and eastern US.
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A powerful storm system is churning northward today through the Appalachian Mountains and is having an important impact on a large part of the eastern third of the nation. The DC-to-Philly-to-NYC corridor has had steady and heavy rainfall this morning and the afternoon will present the possibility of some severe thunderstorm activity. Meanwhile, it is cold enough in the Midwest for snow to fall at mid-day and portions of the Ohio Valley will receive significant snowfall during the next 24 hours or so. An especially hard hit region may be northeastern Ohio where more than a foot of snow is possible in localized areas later tonight and Tuesday. This storm system is coming at the front end of an overall pattern change that will bring persistent colder conditions to the central and eastern US as we transition from the month of November to December.
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A powerful storm system will begin the week with steady and heavy rainfall in the DC-to-Philly-to-NYC corridor as it pushes northward from the southeastern states. The precipitation pattern will take on more of a showery form this afternoon and there can be a couple of strong thunderstorms as it turns quite breezy and milder. The upper-level low associated with this strong surface storm will stall in the general vicinity on Tuesday and it’ll remain unsettled around here with the chance of additional showers and it turns colder as well. In fact, this storm system will be kind of a pattern changer as we transition into the month of December with colder conditions going forward for the foreseeable future. Another storm system may have an impact on the Mid-Atlantic region later this week or during the upcoming weekend.
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The weather pattern will get pretty interesting in much of the US as we transition to the month of December and it is likely to include some significant temperature and height anomalies for this time of year. High pressure ridging in the upper part of the atmosphere will intensify dramatically next week across Canada at the same time colder-than-normal air sets up across the central and eastern US and there will be plenty of strong energy aloft. The transition to this colder and stormy weather pattern in the central and eastern US (and warm weather pattern across Canada) could begin with a major storm system in the Monday/Tuesday time period (i.e., last day of November and first day of December). A second storm could threaten the east coast at the end of next week and that system should have more in the way of cold air to work with in the eastern states.
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A cold front passed through the region early yesterday and high pressure building across southeastern Canada is briefly in control of our weather. As a result, we’ll take a downturn in temperatures today with highs confined to 50 degrees or slightly lower which is below-normal for this time of year. Low pressure will influence conditions around here from late Wednesday night into Thursday with occasional showers likely through mid-day on Thanksgiving Day. High pressure builds back into the region at the end of the week and it should generate pretty decent weather in the Mid-Atlantic region for Friday and Saturday.
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The weather pattern will get pretty interesting next week to coincide with the beginning of the month of December and it will include some significant temperature and height anomalies across North America for this time of year. High pressure ridging in the upper part of the atmosphere will intensify dramatically next week across Canada at the same time colder-than-normal air sets up across the south-central US and there will be plenty of strong energy aloft. The transition to this possible colder and stormy weather pattern in the US (and warm weather pattern across Canada) could be preceded by a significant rain event in the eastern states as we end the month of November.
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A cold front will pass through the region early today and high pressure will build across southeastern Canada from later today into Tuesday. As a result, we’ll take a downturn in temperatures with highs up in the 50’s early today, but then doing no better than 50 degrees on Tuesday. This high pressure system will lose control around here at mid-week and showers are likely to arrive by Wednesday night associated with low pressure to our northwest and they could last into Thanksgiving morning.
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High pressure shifted off the coast yesterday and a southwesterly flow of air on its backside began a warming trend that will continue today in the Mid-Atlantic region. In fact, temperatures this afternoon could jump by about ten degrees compared to yesterday and we’ll hold at relatively mild levels as we begin the weekend. It will turn cooler on Sunday following the passage of a cool front and there can be some shower activity late in the weekend and into the day on Monday.
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High pressure is shifting off the coast today and that will allow for the chill of recent days to ease and a warming trend will begin this afternoon in the Mid-Atlantic region. In fact, temperatures this afternoon could jump by ten degrees compared to yesterday and then we may add another ten degrees on Friday afternoon. The weekend should start off nice on Saturday, but it'll turn a bit cooler for Sunday and showers could return on Sunday night and Monday.
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