Today will be another very warm day in the Tennessee Valley with highs around the 80 degree mark in the northern part of Alabama. It’ll turn cooler tomorrow following the passage of a cool frontal system which will knock about ten degrees off temperatures. It’ll turn even cooler late in the week and for the upcoming weekend with temperatures well below normal for this time of year as northwest flow develops following the passage of a strong cold frontal system.
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The contrast between this past weekend and next weekend will be quite remarkable in the Mid-Atlantic region and Northeast US. An unusually cold air mass for this time of year will drop into the Mid-Atlantic and Northeast US by the early part of the upcoming Mother’s Day weekend and it will contrast markedly with the above-normal temperatures experienced this past Saturday and Sunday. In fact, the chill that is headed this way for the late week/weekend may very well result in near record lows across a wide region of the nation extending from the Rockies to the eastern seaboard and snow is even a possibility in the interior higher elevation locations of the Mid-Atlantic and Northeast US. Cold air outbreaks from Canada into the central and eastern US will quite likely continue until at least the middle of the month May.
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The week will start off with quite warm conditions in the Tennessee Valley and highs both today and on Tuesday not far from the 80 degree mark. Cooler, drier air will filter into the region at mid-week as a large area of high pressure builds southeast from the Northern Plains. It’ll turn even cooler late in the week and for the upcoming weekend with temperatures well below normal as northwest flow develops following the passage of a strong cold frontal system.
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With mainly clear skies and light winds last night, radiational cooling allow for temperatures to drop into the 40’s across northern Alabama, but there will be a quick rebound today with plenty of sunshine to boost temperatures. It’ll turn even warmer this weekend as high pressure takes control and we should see temperatures climb to 80+ degrees on both days.
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A cold frontal is edging towards the east coast and there will be a significant rain event today and tonight in much of the eastern US. While there can be a few showers in the area, the impact of this frontal system in terms of rainfall will be to our east. With mainly clear skies tonight and light winds, radiational cooling will allow for temperatures to drop into the 40’s across northern Alabama. Temperatures on Friday will be quick to rebound with plenty of sunshine as high pressure takes tonight.
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Active weather will continue today in the Tennessee Valley region with the likelihood of showers and perhaps a strong-to-severe thunderstorm or two. A cold frontal system with strong support aloft will be the cause of our shower activity today and it can perhaps set off the formation of a few strong-to-severe thunderstorms depending on the cloud cover situation. It’ll turn cooler later this week following the frontal passage, but an impressive warm up is coming this weekend and into the early part of next week ahead of the next cool front.
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The overall flow aloft in the local region is westerly and we’ll continue to enjoy decent weather with some sunshine and highs not too far from the 80 degree mark. A strong wave in the upper atmosphere will approach the region resulting in an increase in clouds and possible showers and thunderstorms late tonight and Wednesday. Some of the rain associated with this system could come down hard at mid-week and there can be a few strong-to-severe thunderstorms.
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The overall flow aloft as we begin the new week will be out of the WNW and the result will be decent weather here on Monday. A wave in the upper atmosphere will approach the region late tonight and Tuesday resulting in an increase in clouds and possible showers and thunderstorms on Tuesday night and Wednesday. Some of the rain associated with this system could come down hard at mid-week and there can be a few strong-to-severe thunderstorms.
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Low pressure this morning will move towards the Mid-Atlantic coastline and loosen its grip on the region and we’ll enjoy a pretty decent day to end the work week. Yet another upper-level trough and surface low pressure will take shape on Saturday and keep us unsettled around here from later tonight into Sunday. By later Sunday, slightly cooler and drier air will push into the region following the passage of a frontal system. It’ll begin to turn warmer again early next week and – yet again – the chances for showers and thunderstorms will tend to climb.
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A very active weather pattern will likely continue across the eastern half of the nation into the early part of May in large part due to a continuation of cold air outbreaks from Canada into the central and eastern US. These on-going cold air outbreaks are combining with increasingly warm and humid conditions across the southern US to help in the generation of storms and also has increased the chances for severe weather outbreaks; especially, across the southern states. In fact, tornadoes this year are running at above-normal levels and are the highest for the month of April since 2011. The next storm in a series of storms will impact the Mid-Atlantic region from today into late Friday and then another system arrives over the upcoming weekend and colder-than-normal conditions will persist through the period.
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