An unseasonably cold weather pattern is setting up for much of the eastern half of the nation for the next week or so and this includes the Tennessee Valley. One cold blast of air is pushing into the region today and another one will arrive during the early-to-mid part of next week. Showers today will signal the arrival of the first cold shot of air and more rain is likely on Monday just ahead of the second blast.
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Much colder-than-normal air has already infiltrated much of the northern US and soon it will extend to the east coast. This change to colder-than-normal conditions will stick around for awhile as a reinforcing shot of Arctic air will plunge southward into the Northern Plains by early next week and then spread eastward to the east seaboard on Tuesday night and Wednesday. In terms of precipitation, another soaking rain event is coming to the Mid-Atlantic region on Friday with the heaviest and steadiest rain likely to fall during the PM hours. Once this system passes by to the northeast of here late tomorrow night, winds will intensify and cold air will pour in from the northwest just in time for the weekend. A second storm is likely to pull out of the Gulf states early next week and produce more soaking rain here in the I-95 corridor on Monday night and Tuesday as it intensifies into a powerful system. This system will be followed by very strong - and potentially damaging - NW winds on Tuesday night and Wednesday and the influx of another very cold air mass for this time of year.
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An unseasonably cold weather pattern is setting up for the Tennessee Valley and a noticeable change will take place by the start of the weekend. Temperatures on Saturday will be well below-normal for this time of year and while they may rebound some on Sunday, they will fall back again early next week as a reinforcing shot of cold air arrives. This active weather pattern will also continue to bring us a threat for rain and as the cold shot arrives early next week, we could even have a shot at some wintry precipitation for the first time this season.
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Our break in the action won’t last too long as another strong cold front is headed our way and will impact the region later in the week. In fact, showers later in the week will signal the arrival of a quite chilly air mass from the northwest that will keep us below-normal at the end of the week and during the upcoming weekend.
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The active weather pattern that we have been experiencing in the eastern US during the past several weeks will continue through this week with a strong cold frontal passage later today and then another low pressure system to deal with on Friday. That late week low pressure system will usher in a much colder-than-normal air mass for the weekend, but that “initial” cold shot looks pale in comparison to what might arrive in the eastern US by the middle of next week. An Arctic air mass that originates in Siberia looks like it will push across the North Pole this weekend and then drop southward through Canada early next week. At the same time, low pressure is likely to push out of the Gulf of Mexico and towards the Mid-Atlantic coastline and potentially generate yet another soaking rain event in the Monday night/Tuesday time frame. The passage of this storm system will become the mechanism to allow the Arctic air mass to spread to the east coast in the Tuesday night/Wednesday time frame.
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The threat for showers and thunderstorms will diminish this morning and the afternoon should feature some clearing along with a westerly breeze. The break in the action won’t last too long, however, as another strong cold front will impact the region later in the week. In fact, showers later in the week will signal the arrival of a quite chilly air mass from the northwest that will keep us below-normal at the end of the week and during the upcoming weekend.
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A strong cold front will approach the area later tonight and we’ll turn warmer today ahead of it. Showers and thunderstorms are likely to develop this evening and there is the threat for severe thunderstorm activity in the overnight hours. It’ll turn noticeably cooler behind the frontal system for the mid-week time period. Another strong cold front will impact the region later in the week.
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An eastward-moving strong cold front will continue to push towards the east coast today and we’ll experience cooler conditions around here following its passage and only a slight chance of showers. High pressure will take over for the weekend and both days should feature mild conditions and plenty of sunshine. One final note, it is time once again to turn back the clocks this weekend – a sure sign that winter is fast approaching.
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Deep upper-level trough will shift from the central US to the Tennessee Valley over the next 24 hours and a strong cold front will slide slowly to the east in this same time period. Low pressure along the frontal boundary zone will help to generate some heavy rainfall today from the Ohio Valley southward to the northern Gulf region and there will be the threat for some severe weather in much of the Southeast US including Alabama and Georgia. The cold front will slide across the region by early Friday and usher in a cooler air mass for the end of the week and upcoming weekend. One reminder, it is time once again to turn the clocks back this weekend early on Sunday morning.
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Low pressure will form along the strong cold front in the central US and vigorous upper-level support will combine to help to generate a significant precipitation event from later today through Thursday in the region from the Rockies to the Ohio and Tennessee Valleys. Severe weather could also get involved with this unfolding pattern on Thursday across much of the southern US including here in northern Alabama. Cooler air will follow the frontal passage at the end of the week and for the upcoming “turn-the-clocks back” weekend.
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