A large area of snow currently extends from the central Plains to the Ohio Valley and it is closing in on parts of the Mid-Atlantic region. There will be two stages to this weekend snow event with overrunning and jet-streak induced light-to-moderate snow later today and early tonight. By late tonight and for the day on Sunday, low pressure induced snow aided by upper-level energy will produce heavier snow; primarily, in the region near and south of the PA/MD border. In fact, the heaviest snow accumulations in this event are likely to come in the region from Virginia-to-Delmarva Peninsula-to-southern New Jersey. This is looking like a prolonged event with snow possibly lasting until later tomorrow night in some parts of the Mid-Atlantic.
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Accumulating snow is falling today in the Colorado Rockies and this storm system will spread snow this weekend from the central Plains to the Mid-Atlantic. Low pressure will be located over Oklahoma early tomorrow and generally head in an eastward direction towards the Tennessee Valley, and ultimately, will transfer its energy to the coastal region of North Carolina. Snow will break out early Saturday in the central Mississippi Valley and then advance eastward to the Ohio Valley by mid-day and to the Mid-Atlantic region during the late PM hours. On Sunday, as low pressure takes over at the North Carolina coastline, snow will wind down from northwest-to-southeast and it’ll last the longest in areas south of the PA/MD border. Heaviest amounts of snow during this upcoming weekend event in the Mid-Atlantic region are likely to take place in parts of Virginia, Maryland, Delmarva Peninsula and southern New Jersey.
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Accumulating snow is likely this weekend in much of the Mid-Atlantic region, but the New York City metro region will be on the northern fringes with little accumulation expected around here. Low pressure will pull out of the southern US on Saturday and head towards the Tennessee Valley before ultimately winding up near the Outer Banks of North Carolina by late Sunday. Snow will break out on Saturday in the central Mississippi Valley and then push eastward to the Ohio Valley and then to the Mid-Atlantic region during the PM hours. The best chance of snow here comes tomorrow night as precipitation stays mainly south of the PA/MD border on Sunday with low pressure nearing the North Carolina Outer Banks. Preliminary snowfall estimates for the NYC metro region range from a coating to an inch or two during this weekend event.
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Accumulating snow continues to be a threat for the weekend in the Mid-Atlantic region with signs pointing to heavier amounts during this event in areas to the south of the PA/MD border. Low pressure will pull out of the southern US on Saturday and head towards the Tennessee Valley before ultimately winding up near the Outer Banks of North Carolina by late Sunday. Snow will break out on Saturday in the central Mississippi Valley and then push eastward to the Ohio Valley and then to the Mid-Atlantic region during the PM hours. On Sunday, as low pressure heads towards the North Carolina coastline, snow will continue in the Mid-Atlantic region with the heaviest amounts likely across Virginia, Maryland, Delmarva Peninsula and perhaps southern New Jersey.
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The pressure gradient will remain rather tight today between strong low pressure over the Canadian Maritimes and strong high pressure over southern Canada and this will result in continued strong winds around here in the Mid-Atlantic region with gusts possible past 40 mph. Winds will slacken off tonight and Friday, but the chill will continue with overnight lows way down in the 20’s and highs struggling to reach freezing on Friday afternoon. By the early part of the weekend, low pressure will pull out of the south-central US and heads towards the northeast at the same time strong high pressure will build into southeastern Canada with a reinforcing very cold air mass. While still a couple days away, it looks like there will be some snow here this weekend, but the heaviest totals are likely going to stay to our south...stay tuned.
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The pressure gradient will tighten today between intensifying low pressure over New England and strong high pressure over southern Canada and this will result in strong winds around here with gusts past 40 mph and there can be accompanying PM snow shower activity. Winds may slacken off a bit tonight as diurnal heating dissipates only to resume at rather high levels again during the day on Thursday. Temperatures will actually drop some between today and Thursday following the passage of a secondary cold front and highs will struggle to reach the freezing mark on Friday although winds will be somewhat reduced to end the work week. By the weekend, low pressure will be gathering strength over the Gulf of Mexico at the same time strong high pressure will slide east across south-central Canada. The upper atmosphere will feature two waves of energy by early Saturday – one in the northern jet stream over the western Great Lakes and the other down in the south-central US. There a few days to go and these upper-level features are still a long way away, but it looks like snow is a good bet in the NYC metro region from late Saturday into Sunday...stay tuned.
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The last couple of weeks were well above-normal in the eastern half of the nation, but this week will be a lot different with progressively colder conditions. In addition, winds will become quite a factor as they will become very strong on Wednesday and Thursday with gusts to 50 mph possible in the DC-to-Philly-NYC corridor. As far as precipitation is concerned, a strong and active cold front will arrive later this evening with occasional rain showers and there can be a rumble of thunder. Looking ahead, snow continues to be a threat for the weekend in the Mid-Atlantic region. The chances for significant snow this weekend in the DC-to-Philly-to-NYC corridor will ride on the timing of the phasing together of waves of energy in the northern and southern jet streams. Early indications suggest the phasing together of these two systems may not occur until they’re both offshore which would reduce chances for important snow accumulations in the I-95 corridor; however, it is way too early to write off a significant snowfall for the DC-to-Philly-to-NYC corridor.
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It’ll turn milder today after a cold, damp start to the day and afternoon temperatures should make it to the middle 40's for highs. A strong cold front will sweep through the region later this evening and likely bring us a round of rain showers before midnight. As low pressure intensifies over New England on Wednesday and strong high pressure edges this way from the Upper Midwest, the pressure gradient will tighten and winds will pick up dramatically. In fact, winds could gust to 45 mph on Wednesday and they’ll stay strong through Thursday to go along with progressively colder temperatures. Looking ahead to the weekend, snow is a threat around here as low pressure pulls out of the Gulf of Mexico at the same time strong, cold high pressure slides eastward across southern Canada. It is still too early to tell how quickly this Gulf storm can intensify by the time it reaches the Mid-Atlantic coastline as that'll depend on potential phasing of a northern stream wave of energy with a southern stream disturbance…stay tuned.
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The last couple of weeks were well above-normal in the eastern half of the nation, but this week will be a lot different with noticeably colder conditions. In addition, winds will become quite a factor as they will become quite strong on Wednesday and Thursday with gusts to 50 mph likely in the DC-to-Philly-NYC corridor. As far as precipitation is concerned, a quick burst of snow is possible this afternoon and frozen precipitation is a threat later tonight; primarily, in areas to the north of the PA/MD border. Looking ahead, snow is on the table this weekend in the Mid-Atlantic region as a storm tries to get going near the eastern seaboard.
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This looks like quite a cold week in the Mid-Atlantic region with frozen precipitation likely here late tonight, potentially damaging winds at mid-week and perhaps a weekend snow threat. Very cold air has dropped southward through New England from southeastern Canada during the past 24 hours or so and low pressure is headed towards the Great Lakes from south-central Canada. Precipitation is likely to arrive here later tonight and it should be cold enough for a wintry mix of snow, sleet and rain. Some slick spots are possible towards morning along with small accumulations of snow and ice. Another low pressure system and its associated strong cold front will cross the region tomorrow night and usher in a very cold air mass for the mid and late week. In addition, winds will become very strong following the Tuesday night frontal passage with gusts past 40 mph likely on Wednesday and Thursday. Looking ahead, a storm will try to get organized near the east coast this weekend and snow is a threat for the Mid-Atlantic region...stay tuned.
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