We are grateful to Kurt Hondl and other group members of the NSSL Storm Research and Analysis Division for their valuable discussions and access to the cell attribute information. The comments of Don Burgess have been most useful to the authors. Portions of the research reported here have been supported by the Salt River Project and the Electric Power Research Institute under Contract W03978-02.
Crum, T. D., and R. L. Alberty, 1993: The WSR-88D and the WSR-88D operational support facility. Bull. Amer. Meteor. Soc.,74, 1669–1687.
Doswell, C. A., III, 1985: The operational meteorology of convective weather. Vol. II: Storm scale analysis. NOAA Tech. Memo. ERL ESG-15, Boulder, CO, 102–103.
Eilts, M. D., and Coauthors, 1996: Severe weather warning decision support system. Preprints, 18th Conf. on Severe Local Storms, San Francisco, CA, Amer. Meteor. Soc., 536–540.
Howard, K. W., C. L. Dempsey, and D. M. McCollum, 1993: SW Area Monsoon Project: Daily operations summary. NSSL, 435 pp. [Available from National Severe Storms Laboratory, Norman, OK 73069.].
Johnson, J. T., and Coauthors 1995: Operational testing of enhanced WSR-88D algorithms and display concepts in National Weather Service offices. Preprints, 27th Conf. on Radar Meteorology, Vail, CO, Amer. Meteor. Soc., 170–172.
Maddox, R. A., C. L. Dempsey, and K. W. Howard, 1997: Intense convective storms with little or no lightning over central Arizona—A case of inadvertent weather modification? J. Appl. Meteor.,36, 302–314.
NOAA, 1991: Doppler radar meteorological observations, Part C, WSR-88D products and algorithms. Federal Meteorological Handbook, Office of the Federal Coordinator for Meteorological Services and Supporting Research, FCH-H11C-1991, Rockville, MD, 210 pp.
Witt, A., and J. T. Johnson, 1993: Operational testing of enhanced WSR-88D algorithms and display concepts in National Weather Service offices. Preprints, 26th Conf. on Radar Meteorology, Norman, OK, Amer. Meteor. Soc., 141–143.