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Hurricane ANDREW - Radar Loops

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Published on Dec 10, 2006

Various loops of Hurricane Andrew's landfall in Southeast Florida from the Miami and Tampa WSR-57 radars. On several of the long-range Miami loops, a large black wedge shape (indicating no reflectivity) appears on the very last frame...this occurred when the radome blew off the National Hurricane Center building during a 164mph gust, destroying the Miami radar. After Miami's radar failed (and Key West's radar had lost power), forecasters were still able to monitor the progress of Andrew's eyewall, which was just in range, on Tampa radar as the hurricane crossed the southern portion of the Florida peninsula. On the close-up loops of Andrew's eyewall, a distinct dual-hemispheric organization of the radar eye can be seen, with each half rotating cyclonically in tandem with the other, in a trochoidal looping pattern. Post-analysis indicated that one of these was the storm's wind-center, while the other was the pressure-center, which were displaced from each other by a distance of about 5 miles.

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