The tropics remain very active with Hurricane Jose likely to move uncomfortably close to the Mid-Atlantic/Northeast US coastline over the next few days. Other tropical systems are likely to threaten the US as well as we progress through the latter part of the month and Maria and Lee – both alive and well over the eastern Atlantic – will have to be closely monitored.
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With the return of sunshine, temperatures have responded noticeably and we’ll stay well up in the 80’s for highs during the next several days. Jose continues to drift slowly over the Atlantic and will likely have no impact at all on the interior part of the Southeast US.
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The remains of Irma will pull away from the region today and we’ll enjoy much improvement with plenty of sunshine returning to northern Alabama. With the return of sunshine, temperatures will respond dramatically and afternoon highs should be right around the 80 degree mark – much more typical of mid-September than what we experienced during the past couple of days.
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The remains of Irma will continue to have an effect on the region with cool conditions and showers still likely. There is a change coming, however, and the latter part of the week and weekend look noticeably warmer with the return of sunshine on a daily basis.
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Irma’s remains will continue to affect the Tennessee Valley for another day, but there is warmer and drier weather coming to the region later this week. A blocking pattern in the upper-atmosphere is causing Irma to grind to a halt in its northward advance and this will keep us unsettled through tomorrow night. By the weekend, temperatures are likely to return to the middle 80’s for highs with the return of sunshine.
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A weakened Irma will head into southwestern Georgia today and then turn northwestward towards the Tennessee Valley region. At 8am, Irma was moving NNW at 18 mph and classified as a tropical storm with max sustained winds at 70 mph and a central pressure of 970 mb. As it arrives over the Tennessee Valley late this evening into Tuesday morning, it is expected to weaken to a tropical depression spreading 2 to 3 inches of rainfall with isolated amounts up to 4 inches across the area. Winds are also expected to be between 20 to 25 MPH with higher gusts up to 40 to 45 MPH. Due to strong high pressure ridging across the Great Lakes region, Irma’s remains will stall out in its advance to the north and gradually dissipate over the Tennessee Valley over the next few days.
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Irma continues to track west-northwest as a major hurricane - now at category 4 status - and is likely to maintain much of its strength over the next couple of days as it moves over very warm waters. Irma should move to a position quite close to the southeastern coast of Florida by early Sunday and then it is likely to turn northward as deep upper-level troughing digs in over the Northeast US. This likely path will result in virtually the entire state of Florida experiencing hurricane conditions later this weekend and into early Monday as the hurricane crosses from south-to-north roughly over the center of Florida. At landfall, Irma is likely to have category 4 status, but category 5 status is not out of the realm of possibility. By the time Irma reaches the central and northern parts of Florida, it is likely to have weakened some to perhaps category 2 level.
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Hurricane Irma continues on a WNW track as a category 5 “major” hurricane. The hurricane is being steered by a subtropical ridge to the north and this motion should continue for the next 48 hours or so. After that, an upper-level trough will dig into the eastern US and allow Irma to turn northward. There is still some uncertainty about the timing of this turn northward, but major impact is very likely across southern Florida over the weekend as it makes its turn.
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Irma continues to grind westward over the Atlantic as a major hurricane and it is looking increasingly likely that it will impact southern Florida in a significant way by later in the weekend and central Florida can expect some impact as well. Irma is likely to approach the Florida Straits by early in the weekend and then perhaps shift its westward track to more of a northward turn and this could bring it over the western side of the state on a path from south-to-north towards the interior Southeast US.
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Irma continues to churn westward over the Atlantic as a major hurricane and it is looking increasingly likely that it will impact southern Florida in a significant way by later in the weekend. Irma is likely to approach the Florida Straits by early in the weekend and then perhaps shift to a northward path which could bring it over the state of Florida on a path towards the interior Southeast US. As of the last report, Irma’s max sustained winds are near 175 mph which gives it a dangerous category 5 “major” hurricane status.
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