This cold and active weather pattern will result in another storm system in the short-term and this one will have a major impact on the southern states from New Mexico to the Carolinas with significant snow and disruptive ice. Low pressure will begin to organize over the Texas Gulf coast later today which is much farther to the south compared to the storm system earlier this week that originated over the central Plains. Cold air has penetrated all the way down to the Gulf coast setting the stage for this potentially crippling winter weather event in many southern locations.
This low pressure will push slowly to the east-northeast on Friday from the Deep South to the coastal waters of North Carolina by early Saturday and then continue on a track to the east-northeast of there into the open waters of the western Atlantic. While support in the upper atmosphere will be somewhat limited for the surface low pressure system, accumulating snow is likely to overspread the DC-to-Philly-to-NYC corridor on Friday night and continue into Saturday morning with a coating to as much as 2-3 inches possible in some areas.
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The main weather story today will be the wind with gusts possible of 40 mph making it feel much colder than the actual air temperatures. In fact, wind chill levels can drop to below-zero at times of the highest wind gusts...not a day to stay outside for long stretches. The powerful NW winds are being generated by a tight pressure gradient between strong low pressure over Nova Scotia and high pressure building across the middle of the nation.
Elsewhere, low pressure will get organized later today over the northwestern Gulf of Mexico. Cold air has penetrated deep into the southern states and this combination will lead to significant snow and ice from Texas to the Carolinas during the next couple of days. That same low pressure will head northeast and likely reach the coastal waters of the southern Mid-Atlantic by mid-day Saturday. It will be a relatively weak system for us likely producing a light snow event from late Friday night into early Saturday on the order of a coating to a couple of inches. High pressure and more cold air returns to the region for the early part of next week.
A bit of good news to wrap up…spring training is only 33 days away.
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This cold and active weather pattern will produce another storm system in the short-term and this one will have a major impact on the southern states from Texas to the Carolinas with significant snow and disruptive ice. Low pressure will organize over the northwestern Gulf of Mexico later today which is much farther to the south compared to the most recent storm system that originated over the central Plains. Cold air has penetrated all the way into the Deep South during the past couple of days setting the stage for this upcoming winter event.
This storm system will push to the northeast on Friday from the Deep South to the coastal waters of the southern Mid-Atlantic by mid-day on Saturday. The surface low will have little support in the upper atmosphere as a “positively-tilted” trough axis will be limited in its generation of upward motion. While snow is likely in the Mid-Atlantic region from late Friday night into early Saturday, it is likely to be an overall light event with accumulations probably limited to the range of a coating to a couple of inches.
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Winds will be a big factor for the next couple of days with Arctic high pressure in control to go along with the continuing below-normal temperatures. Gusts can exceed 30 mph today from a northwesterly direction and potentially reach 40 mph on Thursday. Low pressure will form over the Gulf of Mexico later tomorrow and produce a lot of snow and ice for the southern states from Texas-to-Georgia over the next couple of days. It will head northeast towards the Mid-Atlantic coastal waters by the early part of the weekend and could produce some snow around here from late Friday night into Saturday morning…looking like a light event for us.
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This cold and active weather pattern threatens to produce another storm system later this week that can have an impact from the Deep South to the eastern seaboard. Low pressure will organize over the northwestern Gulf of Mexico later this week...much farther to the south compared to the most recent storm system which originated over the central Plains. As such, there can be an impact in the Deep South and including the potential of accumulating snow from Dallas-to-Little Rock-to-Memphis and a swath of disruptive ice from Texas to the Carolinas.
After that, the low pressure system likely heads towards the eastern seaboard and the exact track will be critical as well as the timing of its intensification along the coast in determining how much impact there can be in the Mid-Atlantic region and Northeast US. A rapid intensification of the surface low along the Mid-Atlantic coastline could mean significant accumulating snow in the DC-to-Philly-to-NYC corridor from late Friday night into Saturday. However, if the system doesn’t intensify significantly until it passes to the north and east of the Mid-Atlantic region - the most likely scenario - then any snow would likely be on the light side.
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The low pressure system that brought significant snow to the region on Monday is now well offshore and a reinforcing Arctic air mass has followed in its wake riding in on strong NW winds. Temperatures will do no better today for afternoon highs than around the 30 degree mark and strong winds of up to 40 mph will produce wind chill values in the single digits. High pressure dominates for the next few days providing us with some sunshine on a daily basis to go along with the below-normal temperatures and then we’ll have to monitor a southern storm system by the weekend to see if it can impact the area with some snowfall.
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Low pressure that has produced accumulating snow today in much of the Mid-Atlantic region will shift to the western Atlantic Ocean during the next hour or so; however, it is not necessarily through with our area just yet. Snow is developing in the northwest sector of this eastward-moving storm system and this “backend” snow will impact the region from DC-to-the-Delmarva-to-southern NJ late today and early tonight and likely up across southern PA as well. In fact, there can be additional snow accumulations in some areas of up to a couple of inches before the precipitation shield finally fully departs the Mid-Atlantic region. On the backside of the storm late tonight and Tuesday, stiff NW winds will develop and can gust past 40 mph or so making it feel even colder than the actual air temperatures.
Looking ahead, this cold and active weather pattern threatens to produce another storm system late this week and weekend. This time, the location of the storm development will be way down south likely over the northwestern Gulf of Mexico by week’s end. As such, there can be an impact in the Deep South and this can even include significant accumulating snow and ice across places like Texas and Arkansas. After that, the low pressure system likely heads towards the eastern seaboard and the timing of its intensification along the coast will be critical in determining how much impact there can be in the Mid-Atlantic region and Northeast US. A quick intensification along the Mid-Atlantic coastline could mean significant accumulating snow in the DC-to-Philly-to-NYC corridor or the system may “wait” until it pushes farther to the north and east to intensify which would likely limit any big impact to eastern New England.
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A major winter storm system will move eastward today and produce significant accumulating snow in the area that is likely to fall at its heaviest during the morning hours. In fact, there can be a lull in the precipitation during the afternoon and sleet can mix in at times; especially, to the south and west of the metro region. Snow or a mix of snow and sleet that changes back to all snow likely re-intensifies during the late afternoon or early evening hours on the backend of the storm system with additional accumulations possible. Total accumulations of 5-10 inches are on the table with isolated higher amounts possible of up to 12 inches or so…the biggest snow event in several years for the DC metro region. Arctic cold will follow for the next few days as our cold, active weather pattern continues in the Mid-Atlantic region. Later in the week, low pressure is likely to develop over the Gulf of Mexico and it can move northeast from there and have an impact in the region this weekend.
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Low pressure will intensify today as it treks eastward through the Tennessee Valley and reaches the coastal waters of the southern Mid-Atlantic by Monday evening. This system will continue to produce significant snowfall along the way with a foot in many areas and there will be a swath of disruptive ice immediately to the south of the heavy snow zone. In addition, there will be an enhanced risk of severe weather later today and early tonight in the storm’s warm sector centered over the Lower Mississippi Valley region.
Snow should arrive in the DC metro region around midnight and into the Philly metro just before daybreak. The heaviest snow in both places will likely be on the front end meaning late tonight and during Monday morning. In fact, there can be a lull in the precipitation on Monday afternoon and then some areas will receive “backend” snow on Monday evening; especially, in the region from DC to the Delmarva to southern NJ. The advance of the snow shield to the north will be inhibited by very dry air stationed over the Northeast US. As such, the storm’s effects will be more limited in places like Philadelphia compared to Washington, D.C. and virtually nonexistent up across New York City. Looking ahead, all indications point to plenty of cold weather left in January – potentially some extreme cold – and multiple storm threats including the possibility of one by the weekend.
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Low pressure will intensify over the central Plains on Sunday and it will become a major winter storm with widespread impact as it treks eastward reaching the coastal waters of the Mid-Atlantic region by Monday night. This system will produce significant snowfall along the way with more than a foot in many areas and there will be a swath of disruptive ice immediately to the south of the heavy snow zone. In addition, there will be an enhanced risk of severe weather on Sunday in the storm’s warm sector over the Lower Mississippi Valley region. The storm arrives in the Mid-Atlantic region late Sunday night and precipitation can last all the way into Monday night in some sections thanks in part to the likely development of “cold conveyor belt” snow on the back end.
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