The warm up that began over the weekend and intensified on Monday will likely bring temperatures to the 60 degree mark today in the NYC metro region. High pressure moving eastward across southern Canada will push colder air our way later tonight and tomorrow will feature a one day return to seasonably cold conditions in the Mid-Atlantic region. A chilly rain is likely late tomorrow and tomorrow night and then it'll turn milder again on Thursday with showers possible. On Friday, a strong cold front will approach and it'll stay quite mild with a continuing threat of showers. That cold frontal system will pass through the region late Friday and usher in much colder air for the upcoming weekend.
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The warm up that began over the weekend will continue for the next couple of days with highs temperatures in the mid 50's today and not far from 60 degrees on Tuesday. A couple of showers are possible tonight as a frontal system is dragged through the region by low pressure to the north, but the bulk of today and Tuesday will be rain-free. A cold front will usher in colder air at mid-week, but it’ll turn milder again late in the week ahead of a strong cold front which should arrive here later Friday and set the stage for a much colder weekend.
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Fast-moving low pressure will spread some snow into parts of Mid-Atlantic region today, but it should stay primarily south of the NYC metro area. This low pressure system is part of a transition in the overall weather pattern from the recent bitter cold to milder conditions that’ll begin here this weekend. We’ll gradually step up in temperatures this weekend and then the real break in the cold will be experienced in the Monday-to-Wednesday time period of next week. Cold air, however, is likely to return at the end of next week following our temporary break in the cold.
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Clouds will increase late tonight ahead of a quick-moving low pressure system and there can be a minor snow event on Friday in the DC-to-Philly corridor. This system is a fast-mover with limited upper-level support and moisture so it should not be a significant snow producer - perhaps a coating to an inch or two - but still need to watch for slick spots with the frigid cold ground-level air temperatures. The weekend will begin a warming trend that will peak in the Monday/Tuesday/Wednesday time period of next week, but cold weather will make a return by the end of next week. Elsewhere, the record-breaking cold across the Upper Midwest will ease after today, but more all-time record lows were set this morning.
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Arctic air flooded the Mid-Atlantic region late yesterday and today will be one of the coldest days of the year so far. Despite sunshine, temperatures will have a hard time climbing through the teens and the breeze will remain a noticeable factor through at least the mid-day hours. The winds do die down by early tonight and then temperatures should drop back to the single digits as clouds increase. On Friday, a quick hitting low pressure system could throw a bit of snow into parts of the Mid-Atlantic region, but it is likely to stay south of here. It’ll remain chilly on Saturday, but milder air will push in early next week and the break in the cold could last through next Thursday.
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An Arctic front will blast through the region this afternoon and it could be accompanied by potentially damaging wind gusts of 50 mph or so, scattered snow showers, and perhaps dangerous, heavy snow squalls. The combination of strong upper-level energy and “frontogenesis” enhancing the chances for snow squall activity with the most likely time period of noon-to-2PM in the DC and Philly metro regions and 2-to-4 PM in NYC. Any spot hit by a snow squall later today will see dramatically reduced visibility with near “white-out” conditions, strong winds, brief, but intense snowfall with a quick small accumulation of a coating to an inch and very slippery roads…do not drive in this!
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The next 24 hours will bring weather to the Mid-Atlantic region that is not often seen around here. First, an Arctic front will blast through the region this afternoon and it could be accompanied by potentially damaging wind gusts of 50 mph or so, scattered snow showers, and perhaps a heavy snow squall. Any spot hit by a snow squall will see dramatically reduced visibility, strong winds, brief, but intense snowfall with a quick small accumulation and slippery roads. The most likely timing for this frontal passage is between noon and 4PM in the DC-to-Philly-to-NYC corridor. Once the front clears the region, temperatures will plunge late in the day and early tonight reaching late night lows near zero degrees in many suburban locations along the I-95 corridor. Temperatures on Thursday will struggle to climb through the teens despite plenty of sunshine. Wind chills will be painfully cold tonight and on Thursday at levels well below zero. The winds lighten up tomorrow night, but temperatures can fall back to the single digits once again.
Elsewhere, extreme cold has grinded the Upper Midwest to a virtual standstill with most schools and businesses closed for the next couple of days. Wind chills have reached very dangerous levels with some spots at more than 60 degrees below zero and this type of cold can cause frostbite in just a matter of a few minutes.
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A strong cold front is sliding towards the east coast at this hour and upper-level energy in the southern US is enhancing precipitation on its southern end. This enhanced precipitation will move northeast and into the DC-to-Philly-to-NYC corridor later today and continue into the evening hours – mainly in the form of snow by the end of the day. The Arctic front arrives on Wednesday and it will accompanied by strong wind gusts, scattered snow showers and perhaps a heavy snow squall or two. Temperatures will then plunge tomorrow night following the passage of the Arctic front and near zero is a strong likelihood in many suburban locations by early Thursday morning.
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Low pressure will slide through the eastern Great Lakes region today and a strong cold front will trail on its southern side all the way into the southern states. Spotty, light mixed precipitation may break out here today, but the steadier and heavier stuff holds off until late in the day or early tonight. Any mixed precitation early tonight should change to all snow with accumulations possible on the order of a coating to a couple of inches. Untreated roads could deteriorate quite quickly early tonight with dropping temperatures and the changeover to snow. A true Arctic frontal boundary arrives on Wednesday and it is likely to be accompanied by strong wind gusts, possible snow showers, and perhaps even a heavier snow squall. The best chance for snow on Wednesday will come between the hours of 10AM and 4PM. Arctic air then blasts into the Mid-Atlantic region on Wednesday night and temperatures could be near zero degrees in many spots by early Thursday morning.
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Low pressure will slide through the Great Lakes region on Tuesday and a strong cold front will trail on its southern side all the way into the southern states. A secondary low pressure system will form along the frontal boundary zone and enhance the precipitation threat in the I-95 corridor later tomorrow and tomorrow night. Precipitation may arrive early tomorrow in the DC-to-Philly-to-NYC corridor as snow or a wintry mix and then change briefly to rain before changing back to all snow as colder air filters into the region on the back side of the frontal passage. A true Arctic boundary arrives on Wednesday and it is likely to be accompanied by strong wind gusts, possible snow showers, and perhaps even a heavier snow squall. Arctic air then blasts into the Mid-Atlantic on Wednesday night and temperatures could be near zero degrees in many spots by Thursday morning.
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