Very cold air penetrated all the way down to the Gulf coast region during the past couple of days and it set the stage for significant snow and ice across much of the southern US including right here in the Huntsville metro region. Low pressure will head slowly to the east-to-northeast on Friday over the northern Gulf states bringing snow and ice here with several inches on the table (3-6”). This system will push to the east-northeast of here by Friday night ushering in a reinforcing cold air mass into the Tennessee Valley region for the upcoming weekend.
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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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Very cold air has penetrated way down into the Gulf coastal region and it is going to set the stage for significant snow and ice across the southern US during the next 24 hours or so including right here in the Huntsville metro region. Low pressure will intensify over the Texas Gulf coast by early tonight and will head slowly to the east-to-northeast on Friday bringing snow here from later tonight into Friday and it can become mixed with sleet and/or freezing rain at times. The snow can be heavy at times for awhile by early morning and several inches of snow and ice accumulations are on the table (3-6 inches). This system will push to the east-northeast of here by Friday night ushering in a reinforcing cold air mass for the Tennessee Valley region for the upcoming weekend.
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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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Very cold air has penetrated way down into the Deep South and it is going to set the stage for significant snow and ice across the southern US during the next couple of days. Low pressure is likely to form over the northwestern Gulf of Mexico later tomorrow and head slowly to the northeast bringing snow here from late tomorrow night through the morning hours on Friday. The snow can be heavy at times by Friday morning and it can mix with rain…several inches of snow accumulation are on the table (preliminary estimates of 3-6 inches). This system will push to the northeast of here by the early weekend ushering in a reinforcing cold air mass for the Tennessee Valley region.
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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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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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The week ahead will be quite cold across the southeastern states and there can be some snow shower activity in the area today to go along with the below-normal temperatures. By late in the week, low pressure will likely try to form over the Gulf of Mexico and it can spread some rain and/or snow into the region later Friday or Saturday.
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A reinforcing surge of colder air will push into the region as we end the work week with high pressure diving to the southeast from the Northern Plains. The cooler trend will continue into Saturday with the high still in control and then low pressure intensifies over the central part of the nation on Sunday.
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A much colder-than-normal weather pattern is about to commence for the central and eastern US and it looks like it’ll be one with some staying power. In fact, this upcoming cold stretch for much of the nation may feature some extreme cold and very cold conditions may penetrate all the way into the southern states from Texas-to-Florida. In addition, there are likely to be multiple snow threats in this developing weather pattern that can impact much of the central and eastern US to go along with the expected much colder-than-normal temperatures. Next week looks particularly interesting in a period that may feature some extremely cold air and multiple threats of snow including one in the Sunday/Monday/Tuesday time frame for the Midwest and at least portions of the Mid-Atlantic. Numerous teleconnection indices support the notion of a much colder-than-normal weather pattern, and an unfolding stratospheric warming event enhances the idea that the much colder-than-normal temperature pattern can be sustained well into the month of January.
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