The wet weather pattern of recent days will continue right through the upcoming weekend in the Tennessee Valley as an upper-level trough becomes entrenched over the central Gulf of Mexico region. In addition to the upper air low pressure system, an abundance of moisture in the lower levels of the atmosphere will contribute to instability over the next few days. Temperatures today and Friday will likely hold in the 80’s for highs with overnight lows generally in the mid or upper 60’s. Elsewhere, an active tropical scene in the Atlantic Basin will likely continue through the remainder of the month and there are four tropical waves being closely monitored at this time.
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The 2020 Atlantic Basin tropical season has gotten off to a very busy start and a parade of systems is going to keep it busy right through the remainder of the month of August. There are currently two tropical systems in the Atlantic Basin which are being closely monitored and both are likely to reach tropical storm status in coming days. A third tropical wave has reached the west coast of Africa and it looks quite impressive on satellite imagery and there is yet another wave situated over the central part of Africa. A “teleconnection” index known as the Madden-Julian Oscillation (MJO) which tracks an eastward-moving tropical disturbance supports the idea for increased tropical activity as we progress through the rest of August. In addition, the latter part of August is from a “climatological” point-of-view, a time of year when tropical activity tends to ramp up as sea surface temperatures climb towards their peak supporting the formation and intensification of tropical cyclones in the Atlantic Basin.
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The Tennessee Valley is in store for another somewhat unsettled, hot and humid day ahead of an incoming frontal system, but the remainder of the week will feature a downward trend in temperatures. Highs today should reach the 90 degree mark in northern Alabama, but will be confined to the mid and upper 80’s for much of the second half of the week. As upper-level trough deepens in the south-central states, the daily chance for showers and thunderstorms around here will continue right into the upcoming weekend.
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The Tennessee Valley is in store for unsettled, hot and humid day ahead of an incoming frontal system, but the remainder of the week will feature a downward trend in temperatures. Highs today should reach the low-to-mid 90’s in northern Alabama, but will be confined to the mid and upper 80’s for much of the second half of the week.
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The overall weather pattern is shaping up to feature cooler weather in the eastern US where temperatures will be well below-normal at times in coming days and very hot weather in the western US where numerous record highs will be challenged. A large upper-level trough of low pressure will extend from eastern Canada to the Gulf of Mexico by the middle of next week at the same time high pressure ridging will intensify over the Southwest US. The transition to the cooler weather in the eastern US has come about with plenty of rainfall and the buildup of heat in the western US has come with an increase in wildfire activity that often ramps up during this time of year.
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The Tennessee Valley is in store for more unsettled weather during the next few days as an upper-level trough of low pressure intensifies overhead. This system will not only help to generate scattered-to-numerous showers and thunderstorms across northern Alabama, it’ll keep a lid on temperatures that should peak at 90 degrees or slightly lower through the weekend. Elsewhere, another tropical storm has formed, “Josephine”, but it should encounter unfavorable environmental conditions and weaken before it ever has a chance from reaching the southeastern US.
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The Tennessee Valley is in store for more unsettled weather today as a trough of low pressure pushes over the Tennessee Valley. As a result, there can be more showers and thunderstorms in the area with the greatest chance during the afternoon and evening hours. The threat for showers and storms will continue on Friday as well, but one change will be slightly cooler temperatures as high pressure builds across the northeastern US.
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The Tennessee Valley is in store for unsettled, hot and humid for the remainder of the week with a daily shot at showers and thunderstorms. In fact, the rain chances will be quite high today as a short wave pushes into the region and given the high available moisture content, any rain that falls can be heavy at times. A repeat performance is likely tomorrow with scattered-to-numerous showers and thunderstorms. Temperatures remain quite hot through the week with highs generally in the low-to-mid 90’s.
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The Tennessee Valley is in store for unsettled, hot and humid for the remainder of the week with a daily shot at showers and thunderstorms. In fact, the rain chances may increase on Wednesday as a short wave pushes into the region and given the high available moisture content, any rain that falls at mid-week can be heavy at times. A repeat performance is likely on Thursday with scattered-to-numerous showers and thunderstorms. Temperatures remain quite hot through the week with highs generally in the low-to-mid 90’s.
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High pressure will take control of the weather around here and the result will be an increase in the heat over the next few days. In fact, temperatures are likely to reach the lower 90’s for highs this afternoon and then the middle 90’s on Saturday, Sunday and Monday. This ridge of high pressure will also reduce the chance for showers and thunderstorms as we head through the weekend, but that threat will climb once again early next week. Elsewhere, the Atlantic Basin tropical scene looks rather quiet and should stay so for the next several days. One final note, the annual Perseid meteor shower will peak next week…best to look for meteors in the pre-dawn hours of Tuesday, Wednesday and Thursday.
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