Strong low pressure will push well off the east coast today and we’ll enjoy much improvement around with mainly sunny skies and moderate temperatures. High pressure ridging will expand into the region this weekend paving the way for dry and increasing warm conditions.
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A frontal system that has been stalled out across the southern part of Alabama for the past 24 hours or so will lift northward today in response to an upper-level trough shifting eastward into the SE US. As a result, the threat of showers will continue today and there can be some heavier rainfall; especially, during the early part of the day. As surface low pressure tracks into the Carolinas, the rain will taper off around here later in the day and skies may actually clear in the overnight hours. A cooler and drier air mass will push into area on Friday and the winds will become quite noticeable as well. High pressure ridging will expand into the region this weekend paving the way for dry and increasing warm conditions.
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A frontal system will stall across Alabama today and meander around for the next couple of days. This frontal boundary zone will continue to be the focus area of showers and thunderstorms over the next couple of days with strong low pressure moving from Texas towards the Carolinas between early tomorrow and Thursday night. As a result, rainfall amounts of up to three inches are on the table for the region and given the recent rains, this can lead to flash flooding concerns in parts of the area. Drier air will filter in late in the week as this southern storm system pushes to the eastern seaboard and then off the Mid-Atlantic coastline.
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A strong wave of energy is sitting off the coast of southern California at mid-day Monday and it’ll push eastward across northern Mexico and then into Texas by mid-week. This upper-level system will help to spawn the development of a strong surface low pressure system in Texas by early Wednesday and this storm will spread significant rainfall to the southern states from Texas to the Carolinas in the Wednesday/Thursday time period. By late Thursday, the southern low will push towards the Carolina coastline at the same time a northern stream wave of energy drops southeastward across the Great Lakes. This two upper-level features will likely phase together at the end of the week, but it’s a little too early to tell the exact timing and placement of the phase which will have an impact as to how far north and west the southern storm’s precipitation shield can extend. Temperatures are likely to be borderline in the Mid-Atlantic/NE US at the end of the week with respect to rain versus snow; however, colder air will be sitting just to the northwest and it certainly can feed in making this an unfolding scenario to closely monitor in coming days.
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A broad southwesterly flow of air developed over the weekend in the Tennessee Valley and this will lead to a warm day to start the new work week. Temperatures both today and tomorrow will climb well up into the 60’s in the Huntsville metro region, but there will also be a threat of showers and thunderstorms. In fact, the warm, wet weather pattern is likely to continue right through the mid-week time period, but drier air arrives for the latter part of the week.
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The weekend will turn out to be quite cold for this time of year in the Mid-Atlantic region and Northeast US, but a warming trend will begin on Sunday across the Mississippi Valley. At the same time, a strong wave of energy in the upper part of the atmosphere will crash into California and this will become one key player in the eastern half of the nation by the middle of next week. The combination of warmer and increasingly humid air and strong energy aloft may very well result in a major rain event next week from the Lower Mississippi Valley to the eastern US.
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A weak disturbance will push into the Tennessee Valley region today and there may be some light rain shower activity as a result. Another disturbance rolls into the region tonight and it could generate a few snow showers, but it’ll push out of here as the weekend gets underway. High pressure builds across the SE US on Saturday and a warming trend will begin here that will take us back to the 70 degree mark for highs by Tuesday and Wednesday of next week. With the warm up, however, will come an increasing chance for showers and thunderstorms on both Tuesday and Wednesday. In fact, there is the potential for a heavy rain event in this time frame of Tuesday and Wednesday for the Tennessee Valley...stay tuned.
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A strong cold front passed through the region on Wednesday and highs this afternoon will generally be confined to the middle 40’s despite plenty of sunshine. A gradual warming trend will begin on Friday and continue through the upcoming weekend as a surface high pressure system builds into the region. With the high overhead on Saturday night, temperatures will drop to chilly levels due to good radiational cooling conditions, but a southwesterly flow by the early part of next week will boost temperatures back into the 60’s.
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A strong upper-level trough will push out of the central US today and head to the eastern Great Lakes and this system will drag a cold front through the region. As a result, it’ll turn noticeably cooler here today and the breeze will be noticeable with a continuing chance of showers. Below-normal conditions will continue on Thursday as well and then we’ll have to watch for a possible “clipper-like” system quickly dropping from our northwest which could produce some snow shower activity in the region on Friday night or early Saturday.
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High pressure has shifted to off the east coast and this will result in warmer conditions today across the Tennessee Valley. In addition to the warm up, it has turned more humid as Gulf of Mexico moisture pushed northward on the back side of the high pressure system and this will increase our chances for showers by tonight and Wednesday. It’ll turn cooler on Wednesday and then even colder for the latter part of the week.
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