Intensifying low pressure is headed towards northern New England this morning from around Long Island, but that won’t be the end of the threat for precipitation in the Mid-Atlantic region. An Arctic frontal system supported by a strong wave of energy in the upper atmosphere will slam into the Mid-Atlantic/Northeast US later today and this will result in wind gusts of 40 mph and possible PM rain and/or snow showers, maybe even an isolated thunderstorm. Any thunderstorm that does form later today could produce small hail as freezing levels will be quite low in the lower atmosphere. The wind and cold will stick around during the first part of the weekend, but it’ll turn noticeably milder and calmer on Sunday with mid-to-upper 50’s likely for afternoon highs. Looking ahead, the weather is looking pretty favorable for the Yankees home opener next Thursday afternoon with some sunshine expected and temperatures likely in the 50's.
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Low pressure will intensify rapidly along the eastern seaboard over the next 24-36 hours resulting in a heavy rain event from today into early Friday in the Mid-Atlantic region. Rainfall amounts of more than two inches are possible by late tonight and flash flood watches have been posted in a large area given the saturated grounds. In the higher elevation interior sections from western Virginia/West Virginia/southwestern Pennsylvania to northern New England significant snow is likely to occur during this event as colder air will wrap into the system later today and tonight.
By later tomorrow, the strong low pressure system will be near the southern part of Maine, but that won’t be the end of the story for the Mid-Atlantic region in terms of inclement weather. An Arctic cold blast supported by a strong wave of energy in the upper atmosphere will slam into the Mid-Atlantic/Northeast US later tomorrow and this will result in wind gusts of 40 mph or so and numerous snow and/or rain showers. The wind and cold will stick around during the first part of the weekend in the DC-to-Philly-to-NYC corridor, but it’ll turn noticeably milder and calmer on Sunday with 60 degrees possible in DC and upper 50’s in Philly and NYC.
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Low pressure will intensify along the Mid-Atlantic coastline today and lead to a heavy rain event in the Mid-Atlantic region with 2 inches on the table around here. It’ll stay on the chilly side today and tonight as bands of heavy rain swirl around the intensifying low pressure system. By tonight, the steadier rain will evolve into a showery pattern and the winds will pick up in intensity. There is the potential for coastal flooding at high tide later this evening given the combination of the heavy rain and coincident full moon. A blast of Arctic air will arrive on Friday and this cold air outbreak will be accompanied by a strong wave of energy in the upper atmosphere. As a result, tomorrow is likely to be quite unstable with windy and cold conditions along with the likelihood of snow and/or rain showers in the Mid-Atlantic region. The cold and wind will stick around as we begin the weekend, but it’ll turn noticeably milder and calmer on Sunday to go along with plenty of sunshine.
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Low pressure will intensify along the Mid-Atlantic coastline on Thursday and the result will be a rainy day in the DC-to-Philly-to-NYC corridor along with chilly conditions. Much colder air will flood the Northeast US and Mid-Atlantic region later Thursday night and Friday and this Arctic blast will be accompanied by a strong wave of energy in the upper atmosphere. As a result, Friday is likely to feature windy and cold conditions along with the possibility of snow showers in the NYC metro region. The cold will stick around as we begin the weekend, but it’ll turn noticeably milder on Sunday to go along with plenty of sunshine.
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Even though spring “officially” gets underway on Wednesday, there are still plenty of cold air masses around the northern hemisphere and – if the timing is just right – there can be some significant wintry weather in the Northeast US and even in the Mid-Atlantic region in coming days. This time of year is notorious for slow-moving and powerful storms and there are signs that two such systems may have an interaction with some impressive cold air outbreaks. The first event of interest will take place from Thursday into Friday and it will actually feature two separate strong waves of energy in the upper atmosphere. Soaking rain is likely to take place on Thursday in the DC-to-Philly-to-NYC corridor as a result of the first wave of energy and then the second wave will combine with an Arctic frontal system on Friday to generate windy and cold conditions in the Northeast US/Mid-Atlantic and likely numerous snow showers perhaps even some snow squall activity.
Another strong and slow-moving system will cross the country this weekend and potentially arrive in the Mid-Atlantic region early-to-mid next week at the same time another cold air mass dives southeastward from central Canada towards this region. It looks like this rather volatile weather pattern with strong and slow-moving storm systems will continue into the early part of April along with up and down temperature swings.
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High pressure will control the weather around here for the next couple of days and it’ll remain rather chilly in the Mid-Atlantic region for this time of year. A cold front will approach the region late Wednesday night and Thursday at the same time low pressure intensifies near the Mid-Atlantic coastline. As a result, Thursday is likely to feature occasional rain and what may turn out to be quite a decent rainfall for the region. A strong secondary cold front will arrive on Friday as intensifying low pressure slowly pulls away to the northeast and the last day of the work week may feature windy and cold conditions with possible snow showers perhaps even a snow squall. Cold weather will stick around at the start of the upcoming weekend, but Sunday promises to be noticeably milder.
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Weak low pressure will pull away from the Mid-Atlantic coastline this morning and high pressure will take control of our weather and we’ll experience below-normal temperatures and dry conditions through mid-week. A cold front will approach the region from the north later in the week and it’ll turn slightly milder ahead of it.
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Unseasonably mild conditions today across the Mid-Atlantic region ahead of a strong cold front which will usher in much colder air for the weekend. As the front arrives later today, the threat for showers will increase and there can be a few strong thunderstorms mixed in; especially, along of and to the east of the I-95 corridor. After a cold, dry weekend, a fast-moving “clipper” system will drop southeastward and into the Mid-Atlantic region late Sunday night/early Monday and it can produce some snow in the region extending from DC-to-southern NJ on the south side to southern PA on the north side including the Philly area – perhaps even small accumulations in some areas.
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The warm up that began yesterday will continue today as a cold frontal system in the Ohio Valley heads east and towards the Mid-Atlantic. Temperatures today will climb into the 60’s, but there will also be occasional showers mainly after noon and perhaps a strong thunderstorm or two. It’ll turn colder and dry this weekend following the passage of the cold front and then a clipper-like system is likely to stay just to our south late Sunday night/early Monday.
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A big warm up will commence today as southwesterly flow in the lower atmosphere intensifies ahead of the next cold frontal system. That front will generate showers around here later tonight and during much of Friday and there can be a couple of thunderstorms mixed in as well. Temperatures today could make it to 60 degrees and then the mid 60’s are likely by tomorrow afternoon. Following the frontal passage tomorrow evening, it’ll turn colder for the weekend and each weekend day should feature some sunshine.
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