As one storm begins to exit off the Northeast US coastline, another one is already impacting northern California with rain in the lower elevations and snows in the mountains. This system will become a major storm and impact much of the nation in coming days with significant snow, ice and rain all the way from California-to-New England. There is also the threat of a severe weather outbreak later in the week across the Lower Mississippi and Tennessee Valleys.
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Low pressure slowly pushes away from the Mid-Atlantic coastline today and clouds will linger this morning with occasional light rain or drizzle. Clearing will take place tonight and temperatures will drop back to the 20’s in the overnight hours, but then rebound to 50 degrees on Wednesday afternoon. The mild weather pattern continues on Thursday ahead of the next cold front which will usher in colder air for the end of the week. Strong low pressure will head towards the Great Lakes on Friday and a secondary system may form near the Mid-Atlantic coastline likely resulting in primarily another rain event for the local region.
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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. Plain rain is to be the predominate precipitation type in areas to the south of the PA/MD border while a wintry mix is likely in the Philly metro region where the sleet can actually come down heavily at times. Snow and sleet are likely to dominate the scene from east-central and northeastern PA-to-northern New Jersey and into New York City. In terms of ice and snow accumulations, the northern/western suburbs of Philly (e.g., Chester, Montgomery, Lower Bucks Counties) can see a coating to a couple of inches of ice and snow by later tonight…2-4 inches likely in Upper Bucks County, the Lehigh Valley, and in the New York City metro region…as much as 3-6 inches from the Poconos/northeastern PA to interior northwest New Jersey. Another strong system may threaten the 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 an unusually warm day on Thursday, much 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 likely throughout the Mid-Atlantic region. Low pressure can produce snow or snow showers in the 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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A warm front will push through the region today as low pressure passes by to our northwest. It will become unseasonably warm this afternoon, but the next frontal system will bring colder air back to the Mid-Atlantic on Friday and winds will become quite gusty as well. Weak low pressure can produce isolated snow showers in the Mid-Atlantic on Saturday and then a stronger system could throw some rain and/or snow this way early next week.
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A cold front pushed through the region late yesterday and today will turn out to be noticeably colder with mainly cloudy skies. Rain is likely to develop this afternoon as low pressure pushes to our northwest and there is an outside chance that sleet mixes in at the onset. Following the passage of a warm front, temperatures should jump on Thursday well up into the 60’s with partly sunny skies and breezy conditions. Another cold front passes through the region tomorrow night ushering in colder and very 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 limited.
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Low pressure will track northwest of the region today producing a residual shower this morning and additional showers in the afternoon. In addition, the winds will pick up noticeably this afternoon and there can be a gusty thunderstorm as well. It’ll turn colder later tonight on the heels of a cold frontal passage and skies will clear after midnight. On Wednesday, it’ll be a colder day and there will be the chance of rain late – perhaps mixed with sleet at the onset – as a warm front approaches from our southwest. After the passage of the warm front, temperatures could shoot up well up into the 60’s on Thursday and then another cold shot will arrive at week’s end. Low pressure could produce some rain and/or snow shower activity around here sometime during the upcoming weekend.
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