March is going to begin with some accumulating snow for the Mid-Atlantic region and it could have an impact on the Friday morning commute in the DC, Philly metro regions. Low pressure will push towards the Mid-Atlantic coastline in the overnight hours and snow is likely to break out around or shortly after midnight in the DC-to-Philly corridor and it can be mixed with sleet and/or freezing rain at times; especially, south of the PA/MD border. That low pressure system hangs around the Mid-Atlantic coastline on Friday and gets energized late in the day as upper-level energy passes overhead and this can lead to more rain, sleet and/or snow from late Friday into early Saturday including additional accumulations in some areas. Yet another wintry precipitation event is likely headed to the Mid-Atlantic region for later Sunday into early Monday. The late weekend system will have plenty of available moisture to it; consequently, lots of potential, but it is unclear as to where the all-important rain/snow line may set up.
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March looks like it will get underway with some snow in the NYC metro region as an active weather pattern continues across the nation. Low pressure will pull out of the Midwest later today and slide across our area late tonight and likely bring snow that can be mixed with sleet and/or freezing rain at times. Average accumulations of a coating to an inch or two are on the table by mid-day Friday with the higher amounts on the southwest side of the metro area. It stays unsettled later tomorrow, tomorrow night and Saturday with another couple of waves possibly generating some chilly rain for the area and snow or sleet can be mixed in at times. A cold front slides towards the Mid-Atlantic region on Sunday and this could set the stage for an important late weekend wintry event, but it is too early to say if it will feature rain, sleet or snow or some combination of the three.
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March may come in like a lion…a cold lion…as about 2/3rds of the nation will be well below normal for early March with the cold wave extending from the Rockies to the New England coastline and to the Gulf coast. In addition, the calendar turn from February to March will be accompanied by an active weather pattern with multiple waves of energy and an accumulating snow threat in the I-95 corridor late tomorrow night/early Friday and another wintry event possible late in the weekend.
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Winter is not going to give up without a fight despite what the groundhog predicted a few weeks ago. The calendar turns from February to March this Friday and the new month will begin with an active pattern to include additional cold air outbreaks and some snow threats. The first threat of snow will actually take place later today and tonight as a “clipper-like” system drops southeastward across the Great Lakes. Snow showers could reach into the metro region later today and continue tonight as this system passes by to our north, perhaps resulting in minor accumulations. Another system could generate some snow or rain here on Friday – just as we begin the month of March. A cold air outbreak is likely to arrive in the Mid-Atlantic region on Sunday and low pressure may form near the Southeast US coastline right along the cold frontal boundary zone. This could result in another wintry precipitation event from late Sunday into Monday with the chance of snow or a wintry mix. The first full week of March will be well below-normal in much of the nation including the Mid-Atlantic region.
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Winter is not going to give up without a fight despite what the groundhog predicted a few weeks ago. The calendar turns from February to March this Friday and the new month will begin with an active pattern to include additional cold air outbreaks and some snow threats during the next week to ten days. The first threat of snow will take place tomorrow night in the northern part of the Mid-Atlantic region as a “clipper-like” system drops southeastward across the Great Lakes. Another relatively weak system could generate some snow in the DC-to-Philly corridor late Thursday night/early Friday – just as we begin the month of March. A cold air outbreak is likely to arrive in the Mid-Atlantic region on Sunday and low pressure may form near the Southeast US coastline right along the cold frontal boundary zone. This could very well turn into the most important threat of all for snow in the Mid-Atlantic region as signs point to a northward push of moisture along the east coast late Sunday into Monday with fresh, cold air in place. Finally, as a vigorous wave of upper-level energy drops into the Great Lakes region early next week, the another system could develop near the east coast, but it is certainly too early to say if that will come close enough to the Mid-Atlantic to produce snow.
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An active weather pattern is in store for the Mid-Atlantic region for the next week or so. High pressure will edge into the region today and this will cause a relaxation in the pressure gradient and noticeably less wind compared to Monday. A fast moving low pressure system will cross the Ohio Valley late tonight and early Wednesday and spread clouds into the Mid-Atlantic region and snow showers are possible here late tomorrow and tomorrow night - perhaps even a period of steadier snow with small accumulations. Another disturbance will head our way by early Friday and this system can bring us some snow as we end the work week. Looking ahead to the weekend, it’ll turn a bit milder on Saturday with a chance of rain and then colder on Sunday and we'll have to watch moisture to our south that may try to push northward along the east coast as we end the weekend. Yet another system may try to ride up along the east coast by the middle of next week.
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A powerful storm over southeastern Canada is combining with strong high pressure over the Upper Midwest to create a very tight pressure gradient field today and this is leading to high winds gusts across the Mid-Atlantic region. Winds can gust into the 50-60 mph range and scattered power outages are possible given the well saturated grounds which can weaken root systems of trees. The air mass is quite chilly as we begin the new work week and it’ll feel much colder with the strong winds. After a calmer and sunny day on Tuesday, a couple of disturbances have to be watched for the mid-to-late week as they can throw some snow or rain our way.
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Mid-Atlantic/Northeast US/Midwest: A storm that has already been a news making event in the Southwest US for its unusual snowfall will undergo explosive intensification this weekend and continue to make news as it’ll have major ramifications across much of the rest of the nation. Low pressure is heading northeastward today from the southern Plains and towards the Great Lakes and it will generate blizzard conditions all along the way. This system has the potential to strengthen over a 36-hour period from around 999 millibars this morning to near 971 millibars by late Sunday and it can result in monthly record low pressure readings in parts of the Great Lakes region.
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Mid-Atlantic/Midwest/Northeast US: A storm that has already been a news making event in the Southwest US for its unusual snowfall will undergo explosive intensification this weekend and continue to make news as it’ll have major ramifications across much of the rest of the nation. Low pressure will pull out of the Southwest US early Saturday and begin to rapidly intensify as it starts a push to the northeast and towards the Great Lakes region where it will become an all-out blizzard. This system has the potential to strengthen over a 36-hour period from around 995 millibars (29.38 inches) early Saturday morning to near 973 millibars (28.73 inches) by late Sunday and it can ultimately result in monthly record low pressure readings in the Great Lakes region.
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A rapidly intensifying storm this weekend will become an all-out blizzard for the Great Lakes and it will have big implications for our weather here in the Mid-Atlantic region. Rain is likely to overspread the NYC metro region early tomorrow night and evolve into a real soaker by late tomorrow night - perhaps even with a rumble or two of thunder. The rain will taper off by mid-day on Sunday and then much milder air will flow northward up along the eastern seaboard on increasingly strong winds. In fact, Sunday afternoon could turn out to be quite a spring tease with temperatures climbing to near 60 degrees. However, the warmth will be rather short-lived and those increasingly strong winds on Sunday afternoon will intensify from Sunday night into mid-day Monday with potentially damaging wind gusts of 50-60 mph.
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