The author extends his appreciation to the many scientists and students who participated in VORTEX and collected extraordinary datasets; to the joint efforts of NCAR, OU, and NSSL and J. Wurman for the development and deployment of the Doppler on Wheels radar; to J. Straka for his significant efforts in editing the DOW velocity data; and to E. Rasmussen for his scientific vision and support. Portions of this research were supported by National Science Foundation Grants ATM-9617318 and ATM-9120009 while the author was affiliated with the National Severe Storms Laboratory and the Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma.
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