Colder air has wrapped into our slow-moving storm system and there will be plenty of moisture to deal with today throughout the Mid-Atlantic region. As a result, snow is likely this morning across many of the northern and western suburbs and there can be small grassy accumulations…watch out for slick spots on roadways. Any snow that falls this morning is likely to change back to rain this afternoon as the overall upward motion in the atmosphere weakens. Significant snowfall is likely across the higher elevation locations of northeastern PA including the Pocono Mountains where early season skiing conditions should be quite good. The snow that falls will be of the “wet” variety as low-level temperatures will be “borderline” throughout this event.
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Colder air has wrapped into our slow-moving storm system and there will be plenty of moisture to deal with today throughout the Mid-Atlantic region. As a result, snow is likely later this morning across many of the northern and western suburbs and there can be small grassy accumulations. Any snow that falls later this morning is likely to change back to rain this afternoon as the overall upward motion in the atmosphere weakens. Significant snowfall is falling across the the higher elevation locations of western Maryland (Garrett County) and across central and eastern West Virginia where early season skiing conditions should be quite good. Any snow that falls will be of the “wet” variety as low-level temperatures will be “borderline” throughout this event.
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A strong cold front passed through in the overnight hours with a band of heavy rainfall and gusty winds and colder air has followed into the Mid-Atlantic region. Surface low pressure has formed along the northern Mid-Atlantic coastline, and instead of pushing to the north, it will be “forced” to rotate around as it becomes increasingly influenced by strong blocking high pressure to the north. As such, an area of moisture now over the northern Mid-Atlantic will loop back around and impact the entire region by later tonight and through the day on Friday.
As the atmosphere turns colder, the precipitation will mix with snow and/or ice pellets by later tonight in the DC-to-Philly-to-NYC corridor and then likely to all snow for awhile on Friday in much of the area. In fact, small accumulations are possible on Friday across many of the northern and western suburbs along the I-95 corridor. Significant snowfall of at least 6-12 inches is coming to much of the Appalachian Mountain chain including in the region from West Virginia to the Laurel Highlands of southwestern PA, and from the Poconos in northeastern PA to the Catskills and Adirondacks of upstate NY.
Looking ahead, there are signs for multiple cold air outbreaks to make their way from northern Canada into the central and eastern US as we push through the remainder of November and into the early part of December...quite a wintry look to the unfolding weather pattern that will include additional threats of snow for the Mid-Atlantic/Northeast US.
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While both the northwest and northeast sections of the country get impacted by powerful storm systems, the Colorado Rockies and Plains will enjoy relatively quiet and mild weather for the next few days. The pattern does turn colder and more unsettled by late in the weekend and early part of the next week, but for the next few days high temperatures in the 60’s along with plenty of sunshine.
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With a deepening upper-level trough overhead and a developing surface low pressure system, “wraparound” rain showers will continue today in an unstable environment and they’ll continue off and on right through tomorrow evening. The surface low pressure system will, in fact, be “forced” to rotate around for a period of time as it becomes increasingly influenced by the strong blocking high pressure system stationed to the north of here over northeastern Canada.
As colder air wraps into the system, the rain can mix with snow later tonight and perhaps can change to all snow for awhile on Friday. In fact, small accumulations are even possible on Friday across some of the northern and western suburbs of the NYC metro region. There will significant snowfall across some of the higher elevation locations of upstate NY from the Catskills to the Adirondacks where some early season skiing looks quite possible.
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With a deepening upper-level trough overhead and a developing surface low pressure system, “wraparound” rain showers are likely today in an unstable environment and they’ll continue off and on right through tomorrow evening. The surface low pressure system will, in fact, be “forced” to rotate around for a period of time as it becomes increasingly influenced by the strong blocking high pressure system stationed to the north of here over northeastern Canada.
As colder air wraps into the system, the rain can mix with snow and/or ice pellets later tonight and likely changes to all snow for awhile on Friday with small accumulations possible. Significant snow of 6-12 inches is possible across some of the higher elevation locations of northeastern PA including, for example, the Pocono Mountains where early season skiing looks quite possible.
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As a potent upper-level trough pushes into the Mid-Atlantic region later today, winds around here will stiffen out of the west-northwest and this will bring much cooler conditions to the region. After high temperatures on Wednesday close to 60 degrees, we’ll likely be confined to 50 degrees later today along with the strong winds gusting up to 30 mph or so.
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With a deepening upper-level trough sliding overhead and an intensifying surface low pressure system off to our northeast, we’re not quite done with this storm system just yet. There can be “wraparound” rain showers returning to the area later tonight and precipitation is likely on Friday as the surface low is “forced” to rotate around for a period of time as it becomes increasingly influenced by the strong blocking high pressure system stationed to the north of here over northeastern Canada.
As colder air wraps into the system, the rain can mix with snow and/or ice pellets late tonight and can change to all snow for awhile on Friday with small accumulations possible on grassy surface across some N/W suburbs. Significant (heavy, wet) snow of 6-12 inches is possible across some of the higher elevation locations of western Maryland (Garrett County) and central/eastern West Virginia where some early season skiing looks quite possible.
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If you are a skier in the northeastern part of the country then this upcoming storm system will be quite good news as early season significant accumulating snow is likely in much of the Appalachian Mountain chain including in the region from West Virginia to the Laurel Highlands of southwestern PA and from the Poconos in northeastern PA to the Catskills and Adirondacks of upstate NY. In fact, snow is quite possible during this event all the way into the I-95 corridor and small accumulations are possible on Friday in some of the northern and western suburbs; especially, to the north of the PA/MD border.
A deepening trough of low pressure in the upper atmosphere will slide south and east to a position over the Mid-Atlantic by tomorrow night and this will help to spawn a (secondary) low pressure system near the northern Mid-Atlantic coastline. This system will become a slow-mover thanks to intense blocking high pressure to the north that will be parked over northeastern Canada. In addition to the threat for the first snows of the season, the northeastern states will experience very beneficial rainfall on the storm’s front end as a cold front pushes through from late today into early Thursday…and that won’t be the end of the precipitation.
Looking ahead, there are signs for multiple cold air outbreaks to make their way from northern Canada into the central and eastern US as we push through the remainder of November and into the early part of December.. It is quite a wintry look to this unfolding weather pattern that will include additional snow threats…perhaps one late next week right around Thanksgiving Day.
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A developing storm system will begin to impact the region with beneficial rainfall from late today into early Thursday and there can be a thunderstorm mixed into the picture. This developing storm system will be a slow mover due to strong blocking high pressure to the north and its impacts here will continue from tomorrow afternoon through Friday with “wraparound” showers and persistently strong winds. From late tomorrow through Friday enough cold air could feed into the system for a mixing with or even a changeover to snow all the way down to the northern and western suburbs of DC. Significant snow is likely across western Maryland (Garrett County) during the next couple of days and also in the higher elevation locations of West Virginia.
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