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Once inland later this week, Helene will be pulled the northwest, rotating around an upper low over Arkansas. This is known as the "Fujiwhara effect", which is pretty unusual at this latitude. The tropical system and the upper low will basically rotate around each other.

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James Spann

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318,293 Aufrufe • vor 1 Jahr •via X (Twitter)

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HELENE will be a MAJOR impact well inland. Georgia, the western Carolina's, Tennessee and Kentucky! This is actually a rare meteorological setup for this side of the world. This is called the "Fujiwara Effect" -- notice how major hurricane Helene gets boomeranged NW and around a low pressure aloft over west TN. Think like two planets orbiting each other than consolidating into one. This complicated, and uncommon meteorological process will help keep the forward speed of the remnants very high. Destructive wind gusts throughout central Georgia, Atlanta area and east TN. This won't be like Ike remnants in 2008 in TN/KY but I think will surprise many with the inland wind gusts Friday well inland. I could see 50-60 MPH gusts all the way to the Ohio River solely due to this complex meteorological phasing. Most times, a hurricane this time of the year goes NE, not hooks a hard NW (left) turn when inland. Really, a rare occurrence.
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