25th Conference on Hurricanes and Tropical Meteorology

Monday, 29 April 2002
Inland secondary rainfall maxima patterns associated with tropical cyclones affecting North Carolina
Joel W. Cline, NOAA/NWS, Raleigh, NC
Surface-based wind, pressure, and storm total rainfall patterns were reviewed for sixteen tropical cyclones and their remnants affecting North Carolina since 1989. While considerable variability was seen in these fields from storm to storm, a common thread present in nearly all sixteen cases was a well-defined inland secondary rainfall maximum. These secondary rainfall maxima produce inland flooding and pose a threat to life in North Carolina. Conceptual models accounting for the rainfall maxima are also presented. The conceptual models will present reasoning for the location of the inland secondary rainfall maxima compared to the track. Effects of track recurvature and mid to upper level wind shear, orographic lift, low level boundaries, and the collapse of the center of the system are reasons that will be presented.

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