The author is grateful to H. Brooks, B. Davies-Jones, C. Doswell, J. Kuehler, and A. Murphy for many useful discussions, and thanks Mike Eilts and Arthur Witt for a careful reading of the original version of this manuscript. He is indebted to the editor, Michael Fritsch, for his almost unreasonable cooperation, and to all of the reviewers without whose input this work would simply not have existed. Special acknowledgement is in order to Robert L. Vislocky who first pointed out to the author that most, if not all, measures are generally inequitable; as a result of his numerous contributions his name could have justifiably appeared on this article. Partial support was provided by the FAA and the NWS/OSF.
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