This work was conducted with support provided to the University of Utah by National Science Foundation Grants ATM-9423311, ATM-9626380, ATM-9634191, and ATM-9714291, and NOAA Grant NA67WA0465. We are grateful to the National Centers for Environmental Prediction for the distribution of gridded model output and the University of Utah Center for High Performance Computing for providing a portion of the computer resources used for this study. Use of the MM5 was made possible by the Microscale and Mesoscale Meteorology Division of the National Center for Atmospheric Research, which is supported by the National Science Foundation. Suggestions made by Gary Carter and a careful reviewer helped to improve the quality of the paper.
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