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Chattanooga, Tennessee – A surge of colder air moving into the Southeast could bring frost concerns to parts of the Tennessee Valley during St. Patrick’s Day week, putting early spring vegetation at risk just days before the start of spring.
According to the NOAA Climate Prediction Center’s 8–14 day outlook, the period from March 15 through March 21 favors below-normal temperatures across much of the eastern United States, including northern Alabama, northwest Georgia and southern Tennessee. The pattern forms as a broad cold boundary drops south from the Great Lakes toward the Gulf Coast, allowing cooler Canadian air to settle across the Tennessee Valley…