MEETING NOTICE

The Greater Miami Chapter of the AMS presents
"TDWR Utility in Tornado Detection"
featuring
Gordon Strassberg
NWSFO - Miami

February 7, 2008 at 3:30 pm.
NWSFO/TPC Media room
Miami, FL

On April 10, 2007, a number of supercell thunderstorms developed south of a stalled frontal boundary over northern Lake Okeechobee...mainly in Palm Beach County...during the afternoon hours. The most severe storm developed into a strong supercell generally over the Loxahatchee National Wildlife Refuge area and moved east into the Palm Beach Metro area. By this time, the storm had markedly degraded in appearance and supercellular structure, but went on to produce a brief/weak tornado in Boynton Beach through the process of sea breeze interaction. Low-level rotation was apparent in Palm Beach International Airport's (PBI) Terminal Doppler Weather Radar (TDWR), but would have been completely indistinguishable using the Miami 88D radar. The presentation will show a brief overview of the synoptic/mesoscale conditions that day, and use radar imagery from both the Miami 88D and the PBI TDWR to show the usefulness of the TDWR in detecting small circulations/features far from the radar. Other storm-scale features are distinguishable in the TDWR data that would not be easily seen in the 88D and adds value to the warning process.


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