There will be some wintry precipitation from late today into mid-day Tuesday across the northern Mid-Atlantic region where such occurrences have been rather limited in recent weeks to say the least. A strong and complex storm system will feature a primary (initial) low pressure system that pushes northeastward later today into the Great Lakes and then a secondary low pressure system will develop later tonight along the Mid-Atlantic coastline. A wintry mix of rain, ice and snow is likely across the Philly metro region and snow and/or sleet will likely be the dominate precipitation types from east-central PA northeastward to southeastern New York State. Small accumulations of snow and ice are possible in the suburbs of Philadelphia where the sleet can actually come down heavy at times, moderate accumulation amounts in the Lehigh Valley and New York City, and more significant levels are likely in the higher elevations of the Poconos/northeastern PA, interior NW New Jersey, and N/W suburbs of NYC.
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Strong and complex low pressure tracks into the Great Lakes today and it’ll likely bring a decent amount of precipitation to the Mid-Atlantic region and the precipitation type will be location dependent. Snow and/or sleet are likely to be the predominate precipitation types across east-central/northeastern PA to northern New Jersey to New York City. Accumulations of snow and ice are likely to range from around 2-4 inches in the Lehigh Valley and the immediate metro region of New York City to as much as 3-6 inches in the Poconos, NE PA, interior NW NJ, and the far N/W suburbs of NYC. Another strong system may threaten the entire DC-to-Philly-to-NYC corridor with rain and/or snow by the end of the week.
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There was record warmth in parts of the East on Thursday including in the Mid-Atlantic region where, for example, Washington, D.C.’s Reagan National Airport (DCA) surged to 81 degrees breaking a record set in the late 1800’s. What a difference a day makes…temperatures at mid-day on Friday are in the 40’s in much of the Mid-Atlantic with very gusty NW winds following the early day passage of a strong cold front. The change in weather will become even more dramatic by Saturday as some snow shower activity is likely in the Mid-Atlantic region – including in some of those same areas that reached the 70’s and 80’s just twenty-four hours ago. Looking even farther ahead, accumulating snow and/or sleet is possible from later Monday into early Tuesday across portions of the northern Mid-Atlantic including in the New York City metro region.
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After a mild day on Thursday, colder air has pushed into the region following the late night passage of a cold front. Winds will kick up as well today with gusts to 40 mph quite likely throughout the Mid-Atlantic region. Low pressure can produce snow showers in the NYC metro region on Saturday and then a stronger system could throw some rain and/or snow this way early next week.
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The country is sharply divided today in terms of temperatures with record-breaking warmth in the East and bitter cold in much of the western half of the nation. In addition to the cold, accumulating snow is falling in a swath from the Upper Midwest to northern New England from a storm system that has impacted a large part of the nation in recent days. Snow is also falling across many western states and blizzard warnings have been posted in of all places the southern part of California. In fact, for the first time ever, blizzard warnings have been issued by the San Diego office of NOAA’s National Weather Service for the San Bernardino Mountains.
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After a mainly cloudy and cool Thursday, the next cold front will push through in the overnight hours resulting in a chilly and increasingly windy end to the work week. It remains quite chilly on Saturday and weak low pressure can produce some snow shower activity in the region, but its moisture content will be rather limited. Another system threatens to bring us some precipitation during the early part of next week.
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A cold front pushed through the region late yesterday and today will turn out to be chilly with mainly cloudy skies. Rain is likely by later in the day as low pressure pushes to our northwest and there is an outside chance that sleet mixes in at the onset. On Thursday, temperatures should climb to the 50’s and there can be a couple of additional showers in the region. Another cold front passes through tomorrow night ushering in colder and windy conditions for Thursday night and Friday. Low pressure could produce some snow shower activity around here on Saturday, but the moisture content for this system appears to be rather limited.
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Low pressure will track northwest of the region today producing some shower activity around here and then it’ll turn colder late tonight on the heels of a frontal passage. On Wednesday, it’ll be a colder day and there will be the chance of rain late as a warm front approaches…sleet can mix in at times at the onset. A reinforcing shot of cold air will push into the area by week’s end and then low pressure could produce some rain and/or snow shower activity around sometime this weekend.
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The overall weather pattern across the eastern US has been active in recent weeks and there is reason to believe it’ll remain quite energetic over the next couple of weeks. In fact, the Mid-Atlantic/Northeast US can become quite a “battle zone” region with the development in coming days of high-latitude blocking across Greenland/Northeastern Canada at the same time high pressure ridging persists over the Southeast US. There will be times when the SE US ridge shows its strength with warm air surging northward into the Mid-Atlantic region and other times in which the high-latitude blocking flexes its muscle resulting in cold air dropping southward from Canada into the northeastern part of the US.
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The week will start off on the mild side in the NYC metro area, but it turns colder by the mid-week. There can be a shower later today, but any rain is more likely to develop later in the evening. Low pressure at mid-week can bring us some rain, sleet and/or snow and -after a milder day on Thursday - it’ll turn colder again by week’s end.
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