It will turn a bit warmer today in the Tennessee Valley and temperatures should reach the upper 80’s during the afternoon hours. It’ll approach the 90 degree mark on Friday and Saturday with an increasing chance of showers and thunderstorms to follow for the weekend and early part of next week. Elsewhere, a heat wave will intensify later this weekend over the Pacific Northwest where temperatures could actually approach all-time highs in places like Portland, Oregon. Also, a strong tropical wave has just exited off of the west coast of Africa and it is something to keep an eye on and could have an impact on the US by early July.
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It will turn a bit warmer today in the Tennessee Valley and temperatures should reach the mid 80’s in the afternoon. It’ll approach the 90 degree mark on Thursday and Friday with an increasing chance of showers and thunderstorms by the time we get to the weekend.
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It won’t be as warm today in the Tennessee Valley as it was on Monday following the passage of a surface cold frontal system and temperatures later tonight will drop to comfortably cool levels in the upper 50’s. It’ll turn warmer tomorrow and then approach the 90 degree mark on Thursday and Friday with an increasing chance of showers and thunderstorms.
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Tropical Storm “Claudette” has moved into the eastern part of North Carolina after dousing the southeastern states with some heavy rainfall this weekend and it’ll exit the coastline later in the day. The main weather story of the next few days around here will be the arrival of another pretty comfortable air mass for the middle of the week preceded by a strong cold front. Temperatures today are likely to climb to the upper 80’s ahead of the front, but will turn somewhat cooler on Tuesday and lows tomorrow night should be in the 50’s. There will be the threat for showers and thunderstorms during the next 24 hours or so ahead of the approaching frontal system.
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A tropical system moving northward over the Gulf of Mexico should reach the Louisiana coastline later tonight – likely as a tropical storm which would result in the name of “Claudette”. There is plenty of wind shear over the Gulf of Mexico which is and will continue to limits its chances for any significant intensification. Once over land, this system will move to the northeast bringing some heavy rainfall to the Tennessee Valley and southeastern US later Saturday into Sunday.
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An active weather pattern will grip much of the eastern two-thirds of the nation over the next several days that will include a tropical storm, a severe weather threat from the Upper Midwest-to-Ohio Valley-to-Northeast US and then a blast of unseasonably cool air for much of the northeastern quadrant of the nation. The tropical wave is now pushing over the southern Gulf of Mexico and is likely to maintain a northerly track and reach the northern Gulf coastal region of Louisiana by later Friday night. After landfall, this tropical system will then move to the northeast and there is a chance that it actually strengthens some over land which is somewhat contrary to normal trends with tropical cyclones. In addition to the tropical activity, a severe weather threat will begin later Thursday across the Upper Midwest and will shift east tomorrow to the Ohio Valley and then perhaps into the Mid-Atlantic/Northeast US by later Friday night and Saturday. All of this active weather will be swept eastward on Tuesday with the passage of a powerful cold front that will usher in another much cooler-than-normal air mass for the northeastern quadrant of the nation.
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A tropical wave will begin to turn the north today over the southern Gulf of Mexico and it is likely to intensify into tropical storm status by later Friday. On Saturday, this tropical storm is likely to be nearing the central Gulf coastal region and rainfall could spread into Mississippi and Alabama. After landfall, the tropical wave is likely to push to the northeast with its leftover rains moving into the Tennessee Valley on Sunday and Carolinas and Virginia by Monday. If this system does indeed reach tropical storm status (and that is quite probable), it would take on the name of “Claudette”.
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There have been a couple of named tropical systems so far in the Atlantic Basin, but neither one was of much consequence and had little to no impact on the US mainland. A third tropical wave now drifting over Bay of Campeche and southern Mexico is likely to intensify into at least tropical storm status in coming days as it turns to the north, if so, it would become named “Claudette”. The track of this system is likely to bring it to the central Gulf coastal region during the early part of the upcoming weekend and then its remains are likely to push northeastward into the Tennessee Valley on Sunday and then the Carolinas/Virginia on Monday. There is even a chance that the remains of the tropical system strengthen after moving over land - contrary to normal trends for tropical systems - and it could get intertwined with an approaching cold frontal system to produce rainfall in the Mid-Atlantic region early next week.
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Deep upper-level low pressure has moved over the northeastern quadrant of the nation keeping that area quite comfortable and we’ll experience slightly cooler-than-normal temperatures here in northern Alabama at mid-week. At the same time we’re enjoying decent weather conditions in the Tennessee Valley, much of the western US is suffering through some excessive heat as intense upper-level high pressure dominates that part of the nation. For example, Phoenix, AZ may experience high temperatures near the 120 degree mark later in the week and Death Valley, CA could reach 125 degrees. Elsewhere, it looks like the Gulf of Mexico will feature a tropical system by the end of the week and this system could move northward towards Texas/Louisiana by the late weekend/early part of next week.
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The overall weather pattern is undergoing some changes this week with the main features being upper-level ridging that will expand and intensify over the western US and a vigorous upper-level trough that’ll reach the Northeast US by mid-week. Temperatures around here will climb to between 85 and 90 degrees for much of the week and rain chances will be rather limited. Elsewhere, it looks like there will be a tropical system later this week or by this weekend over the Gulf of Mexico - perhaps the first important system of the young 2021 Atlantic Basin tropical season.
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