Winds will be rather strong for much of today in the Mid-Atlantic region with gusts up to 35 mph or so; however, a more intense and longer-lasting wind event is in store for late tonight and Wednesday associated with the next strong cold frontal system. That next cold front will be trailing a “clipper” low pressure system that passes by to the north on Wednesday, and it can help to generate 50 mph wind gusts from late tonight into late Wednesday. In terms of precipitation, there can be some snow shower/snow squall activity on Wednesday afternoon as this next cold front arrives and, as with today’s frontal system, most of the activity will be limited to the northern Mid-Atlantic.
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A couple of strong cold frontal systems dropping southeastward from Canada will impact the northeastern states both today and on Wednesday. The first of these fronts can cause strong winds around here today and there can be an isolated shower or two. The second front can produce more strong winds around here on Wednesday with gusts past 45 mph and there can be a shower as it turns milder with afternoon temperatures in the 50’s. Low pressure to our west will try to push a warm front through the area later in the week and there can be some rain around here from late Thursday into Friday.
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After a cold, dry and quiet weekend, high pressure will remain in control as we start the new work week and west-to-southwest winds will strengthen as the pressure gradient tightens between low pressure to the north and high pressure building in from the southwest. A couple of strong cold frontal systems dropping southeastward from Canada will impact the northeastern states on both Tuesday and Wednesday. The first of these fronts can cause windy conditions on Tuesday with the chance of a shower around here. The second front will also generate windy conditions around here at mid-week with the possibility of a shower or two. At the end of the work week, low pressure to our west will try to push a warm front through our region and there can be some rain from later Friday into Saturday.
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Arctic high pressure will push offshore today and this will be followed by a cold frontal passage later tonight. High pressure will then re-establish for this weekend and early next week and help to produce a stretch of cold and dry days around here. A “clipper” system will approach from the northwest by the middle of next week and it could produce some snow which - more than likely - would be confined to the northern half of the Mid-Atlantic region.
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Arctic high pressure will push offshore today and this will allow for a bit of moderation in temperatures, but they’ll remain at well below-normal levels for this time of year. Temperatures should climb to near freezing this afternoon, but will drop to very cold levels again late tonight near the 15-degree mark. High pressure will return to the region this weekend and then a cold front arrives late Sunday probably on the dry side.
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Bitter cold Arctic air persists across much of the nation with numerous daily low temperature records set across the southern and eastern states. In fact, a few all-time low temperature records were set this morning across southern Louisiana where clear skies, light winds, and a fresh, deep snowpack allowed temperatures to plunge to single digit levels across the region. A rare major winter storm has brought significant accumulating snow across the southern US from Texas-to-Florida-to-the Carolinas and, in some cases, this matched or surpassed the great winter storm of February 1895. The precipitation field associated with this southern storm will push off the southeast coast today, but the bitter cold will persist for a bit longer.
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Arctic high pressure will settle over the area today and then moves offshore on Thursday. As a result, it’ll remain bitterly cold for another day around here with afternoon highs near 20 degrees and overnight temperatures should drop to near 10 degrees. With the high pressure offshore on Thursday, there will some moderation in temperatures and afternoon highs both tomorrow and Friday should be in the middle-to-upper 20’s.
Elsewhere, the southern states from Texas to the Carolinas continue to suffer through unusual severe winter weather conditions during this nationwide Arctic air outbreak. Accumulating snow fell yesterday on Houston, Texas on the order of 4 inches or so (their 2nd biggest snowstorm) and as much as 10 inches on New Orleans, Louisiana. And perhaps most amazing of all, there are single digits temperatures this morning across southern Louisiana.
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Arctic high pressure is in control across the Mid-Atlantic region and we’ll to experience bitter cold conditions until later in the week. Temperatures today and on Wednesday will do not better than around 20 degrees for afternoon highs and single digits are quite likely for overnight lows. An upper-level disturbance will push through the area later in the day and it can bring some snow shower activity to the DC metro region from later today into early tonight. Elsewhere, a southern storm will bring snow and ice to unusual places through tonight extending all the way from Texas to Florida to the Carolinas.
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The leading edge of a widespread Arctic air mass arrived in the eastern states on Sunday and a wave of low pressure developed along the frontal boundary zone resulting in rain and snow in the local area. Here on Monday, Arctic air has overspread much of the nation with bitter cold conditions extending virtually from coast-to-coast. In fact, today may turn out to be one of the coldest days on a nationwide basis in quite a long time. Temperatures here today will do no better than the lower 20’s and - with winds gusting to 30 mph - the wind chill values will be at much lower levels. Temperatures during each of the next couple of nights can bottom out in the upper single digits in many locations. A strong storm system will produce significant snow and ice across the southern states from later tomorrow into Wednesday and it appears that most, or all, of that precipitation shield will stay to the south and east of the Mid-Atlantic region. Yet another storm could ride up along the eastern seaboard by the end of the work week and this system will be monitored.
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Low pressure over the southeastern US early this morning will intensify as it pushes northeastward to a position off the Mid-Atlantic coastline by early this evening and then to near the New England coast by later tonight. Snow or rain changing to snow will break out today across the DC-to-Philly-to-NYC corridor and several inches is possible in some areas by the time the system winds down later this evening. Bitter cold air will follow the snow for much of the week ahead with single digit overnight lows on the table and some spots may even touch the zero-degree mark. A mid-week winter storm will have a southern US focus likely producing accumulating snow and/or ice from Texas-to-northern Florida-to-the Carolina coastline…likely staying to the south and east of the Mid-Atlantic region. A third storm system may ride up the east coast by the end of the week with some snow possible in the Mid-Atlantic region in the late Thursday/early Friday time period.
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