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HURRICANE DENNIS

August 30, 1999

visible imagery

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This late afternoon image shows the circular pattern associated with a well-developed tropical cyclone. Dennis had sustained winds just below 100mph at the time of this image (1815 UTC - 2:15 pm EDT). Most notable about this storm is the radial cloud bands which seem to emanate from the center of the storm on its northern side. Actually, these billow-type clouds are the tops of thunderstorms or other convective cloud elements. Because of the vertical shear within the storm (counterclockwise winds at low levels and clockwise at the top of the storm), these clouds are aligned along the shear vector rather the winds at any particular level(s).

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This page was updated on September 1, 1999.

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