26th Conference on Hurricanes and Tropical Meteorology


Strong Updraft Feature Associated with Hurricane Earl During Landfall

Barry C. Roberts, NASA/MSFC, Huntsville, AL; and K. R. Knupp

In September 1998 hurricane Earl made landfall along the Gulf coast east of Panama City, FL. The University of Alabama in Huntsville Mobile Integrated Profiling System, which was located in Tallahassee, FL obtained measurements of Earl with a 915 MHz Doppler wind profiler as the system moved across the Florida panhandle. A particularly strong updraft feature, having a magnitude of ~ 15 m s-1 within the lowest 3.0 km above ground level, was associated with one of Earl’s primary rain bands. An analysis of the updraft’s depth, intensity, duration and wind fields as measured by the 915 MHz Doppler wind profiler is presented. Perturbations in flow as measured by the WSR-88D radar, variations in the cloud top height derived from Geostationary Earth Orbiting Satellite data and surface thermodynamic and pressure measurements are also included in the analysis.

extended abstract  Extended Abstract (760K)

Poster Session 1, Posters
Wednesday, 5 May 2004, 1:30 PM-1:30 PM, Richelieu Room

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