A substantial warm up will begin this weekend and likely continue for a week to ten days, but we’ll have to suffer through a couple of chilly days before we get there. Colder air has pushed into the region riding in on strong NW winds on the backside of intensifying low pressure off of the Northeast US coastline. This storm will again pound the northern part of New England with snow and it’ll keep us on the blustery, chilly side into tomorrow as high pressure builds into the Mid-Atlantic region. By the weekend, this high pressure system will push off the coast and this new positioning will allow for the return of warmer air into the Mid-Atlantic - and it looks like this warm up will have some staying power right into the latter part of the month.
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A substantial warm up will begin here this weekend and likely continue for a week to ten days, but we’ll have to go through another cold shot before we get to that point. Today will feature lots of clouds as one system passes by just to our north and a second system passes by just to our south. Showers are possible during the mid-day and afternoon hours and the wind will pick up later in the day. Later tonight, these two systems will merge off the Northeast US coastline, a deep trough will form in the upper atmosphere, and NW winds will push colder air back into the region. High pressure returns by the weekend and, then shifts to a position off the east coast which will allow warmer air to move in from the southwest.
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A substantial warm up is possible around here beginning this weekend and continuing into early next week, but we’ll have to go through another cold shot first during the second half of the week. Today will be much calmer than yesterday as high pressure pushes into the region following yesterday’s rambunctious atmosphere. Low pressure to our northwest on Wednesday will combine with another one to our south to throw some clouds our way and perhaps a rain shower or two. Those two systems will merge off the New England coastline late Wednesday night and it’ll turn colder and quite breezy around here for the last couple days of the work week.
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Intense low pressure off the Maine coastline is producing a very tight pressure gradient in the Northeast US and the result will be the continuation of intense winds as we begin the new work week. The highest wind gust so far during this event is 66 mph at Reagan National Airport at around 11pm. Gusts can reach 60 mph this morning and up to 50 mph this afternoon and there is the concern for more in the way of downed limbs and power outages. The cold frontal passage of last night has ushered in a colder air mass and it’ll feel even worse due to the strong winds. At mid-week, a “clipper” system will drop into the area from our northwest and it could generate rain or snow showers in the region.
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One winter storm is now long gone, but the overall weather pattern remains quite active for the Northeast US and there will be lots to monitor over the next week or so. First, a clipper system dropping southeast from Canada will bring some light snow to the northern Mid-Atlantic region late tonight and early Saturday. Second, after primarily rain on Sunday in the Mid-Atlantic, a powerful cold front will whip through the region Sunday night and winds should intensify to quite strong - and potentially damaging levels - on Sunday night and Monday. Finally, there are some early signals for a storm to form near the east coast later next week which has a lot of potential, but also many questions still to iron out.
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High pressure builds into the region today, but clouds will tend to increase as a warm front approaches from the south. Low pressure then tracks to our northwest on Sunday and that should generate some rain in the area. A cold front will then sweep through Sunday night along and its passage will usher in a colder air mass for the early part of next week and it'll become extremely windy on Monday.
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Intensifying low pressure is heading towards the coastal waters of New Jersey and our precipitation will wind down this morning and the winds will pick up in intensity. This storm system will produce significant snow north of the PA/MD border from the Philly metro region all the way to eastern Maine. Temperatures have dropped significantly since yesterday and will stay on the chilly side into the weekend, but then another dramatic rebound will take place.
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All systems are go for a snowstorm late tonight/Thursday for the region from northeastern Maryland (near PA border) to Maine and this evening’s analysis will focus on current observations that are providing us with some clues as to what is likely to unfold over the next 12 to 24 hours.
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As a Penn Stater, let me borrow the phrase “white-out” which may very well describe the conditions for a brief time tomorrow morning in the Philly, NYC metro regions. The threat for a significant snowstorm continues for the Northeast US from northern Maryland to Maine and there should be accumulating snow all the way down into the DC metro region late tonight and on Thursday. As upper-level energy slides towards the eastern US, low pressure will develop over central Virginia later this evening. This low pressure area will then intensify as it heads northeastward reaching the waters off of the New Jersey coastline by early tomorrow. From there, the storm will trek just east of the New England coastline spreading accumulating snow all the way up to the eastern seaboard of Maine.
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The threat for an all-out major snowstorm is on the table from Philly to Boston and it is not out of the question that there will be significant snow accumulation late tonight/early Thursday in the far northern and northeastern sections of the DC metro region. The weather pattern will be very active over the next 36 hours ranging from warmth today to accumulating snow. It’ll be quite warm today in the Mid-Atlantic region ahead of a strong cold frontal system and there may be a few showers to go along with the warmth. Colder air will then push into the region this evening at the same time low pressure rapidly develops in the eastern US. Rain is likely for awhile tonight, but then as colder air moves in, a changeover to snow will take place towards morning from northwest-to-southeast. During the changeover period from rain to snow there can be some sleet involved. By early tomorrow, intensifying low pressure will be just off the Mid-Atlantic coastline and the snow could fall quite hard across the northern and northeastern suburbs. Accumulations on the order of a coating to a couple of inches are likely from the District to points south and west and could range from 2-4 inches in the far northern and northeastern sections of the DC metro region. This storm will then head all the way up along the coastline dumping accumulating snow on eastern New England.
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