Areas of low pressure will push from the southwest-to-northeast over the next few days and this will continue our threat for rain right through the upcoming weekend. Today will be another rather chilly day – especially when compared to the warmth of earlier this week – but it’ll turn milder this weekend although the rain threat will continue. High pressure should finally build across the area in the early part of next week. By the end of next week, we may have to deal with a storm system near the Mid-Atlantic coastline.
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Record-warmth has been swept away from the Mid-Atlantic region by an overnight passage of a cold frontal system and the next couple of days will stay on the chilly side with occasional rain or drizzle. The weekend will feature milder conditions although still on the wet side and then much of next week looks relatively mild for this time of year. By the end of next week; however, important changes will be taking place to the overall upper-level pattern across North America. A deep upper-level trough of low pressure will begin to retrograde (i.e., move from east-to-west) to the east coast at the same time strong high-latitude blocking forms over northeastern Canada and Greenland. The ultimate result is likely to be a strong storm near the east coast at the end of next week and with colder air potentially wrapping into the system, accumulating snow may very well become a real threat in parts of the Mid-Atlantic region and Northeast US by the first weekend of March.
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Our record-breaking warmth has been swept away by a strong cold front and temperatures today and Friday will be noticeably colder with highs generally confined to the 40’s as compared with the balmy 70’s of the past couple of days. A series of low pressure systems will travel from southwest-to-northeast over the next few days and we’ll have the chance for rain or drizzle on a daily basis right through the upcoming weekend. There can be some sleet mixed in late today and through the night in areas just to the north and west of the metro area and some of the rain may freeze on untreated surfaces. The weekend will turn milder with high temperatures likely to reach well into the 50’s on each day.
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An unseasonably warm air mass has flooded the Mid-Atlantic region and this afternoon will likely feature many record-breaking high temperatures in the 70's. A cold front will slide through the region in the overnight hours and we’ll turn much more seasonable for the latter part of week, but not at all unreasonably cold for this time of year. With the cool down, there will be multiple chances for rain as wave-after-wave pushes from southwest-to-northeast over the next several days.
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Today has seen many temperature records go down across the nation with record warmth in the eastern US and record cold in the interior west. In the local area, record highs have already been set at Dulles Airport (IAD) at 71 degrees (1971) and others could fall in the next couple of hours and Wednesday promises to result in numerous record high readings across the Mid-Atlantic. It’ll turn much cooler on Thursday in the Mid-Atlantic region and there will be multiple shots at rain during the late week and weekend; especially, to the north of the PA/MD border. Longer term, signs continue to point to big changes arriving in early March which should lead to more colder-than-normal conditions in the Mid-Atlantic region and perhaps even more opportunities for accumulating snow.
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A much warmer air mass will flood the Mid-Atlantic region today following an overnight warm frontal passage. Temperatures will climb to unseasonably warm levels both this afternoon and on Wednesday and many records can go down in the Mid-Atlantic. A cold front will drive through the region on Wednesday night and we’ll turn much more seasonable for the second half of the week with multiple chances of rain.
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A fast-moving, but potent system will produce accumulating snow in the DC-to-Philly-to-NYC corridor late tomorrow and tomorrow night and some spots can receive several inches by early Sunday morning. Much colder air pours into the region late today and tonight as NW winds increase in intensity and then low pressure will head from the southern states on Saturday to a position off the Mid-Atlantic coastline by later tomorrow night. Following the winter weather this weekend, much warmer air will flood the region next week and highs by Tuesday and Wednesday may pass the 70 degree mark in much of the I-95 corridor - in other words, the snow will not last for long.
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A strong cold front will push through the region today and this morning's warmth will be replaced by windy and colder conditions later in the day. The full brunt of this next cold air mass will arrive tonight and temperatures will tumble well down in the 20’s for overnight lows. On Saturday, cold high pressure will start the day nearby and low pressure will begin to pull out of the southern states and head towards the Mid-Atlantic coastline. This high pressure system will push off the coast by late Saturday and this will open up the door for precipitation to head our way from the southwest-to-northeast. The precipitation will likely arrive as snow late in the day or early Saturday night and then it may mix with or change to rain and/or sleet for awhile, but not before possible snow accumulations of 4-6 inches with the higher amounts in that range to the north and west of NYC. This will be a fast-moving, but potent system and all precipitation is will be over by very early Sunday morning. A major warm up will then take place in the early and middle parts of next week and temperatures will jump to the 60’s by Tuesday and Wednesday – perhaps even higher than that.
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A wild ride is in store for the DC-to-Philly-to-NYC corridor over the next several days going from spring conditions today to winter weather by the weekend and then back to spring weather by the middle of next week. Temperatures today should reach the 60’s in the I-95 corridor and then drop to the 20’s tomorrow night following the passage of a strong (and wet) cold front. Low pressure will then head towards the Mid-Atlantic coastline late Saturday and accumulating snow could fall in DC, Philly and NYC before a potential changeover to rain. Following that, much warmer air will flood the region during the early and middle parts of next week and the 60’s (or even higher) are likely on Tuesday and Wednesday.
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A warm front passed through the region in the overnight hours and after some lingering early morning light rain or drizzle, temperatures today will soar to the 60’s and much of the day should turn out to be rain-free. This warm up, however, will be rather short-lived as a strong cold front arrives on Friday with additional rainfall tonight and early Friday and then much colder air will push in tomorrow night. On Saturday, cold high pressure will start the day nearby and low pressure will begin to pull out of the southern states and head towards the Mid-Atlantic coastline. This high pressure system will push off the coast by later Saturday and precipitation will likely arrive by the end of the day or early Saturday night. The precipitation will likely be in the form of snow at the onset and it may stay as snow Saturday night though there is the chance for a mixing with or changeover to rain. Some accumulations are likely in the NYC metro region before any potential changeover. It'll turn very mild again by the middle of next week.
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