Evaluation of Selected Atmospheric Indices for the Prediction of Thunderstorms at Omaha, Nebraska

Authors

Fred Ladehoff, University of Nebraska-Lincoln

Document Type

Thesis

Date of this Version

5-1997

Citation

Thesis (M.A.)—University of Nebraska—Lincoln, 1997. Department of Geography.

Comments

Copyright 1997, the author. Used by permission.

A free public-access version is available at http://digitalcommons.unl.edu/opentheses/

Abstract

This study examines the values of five stability indices (the Showalter Index, the K Index, the Vertical Totals Index, the Cross Totals Index, and the Total Totals Index) for Omaha, Nebraska during the months of March through September, 1964 through 1973. Index means during thunderstorm periods and non-thunderstorm periods should show a distinct difference. Even though indices can be an important tool, it must be accentuated that indices should never be used as the sole factor in the prediction of thunderstorm or non-thunderstorm occurrences. This study shows that even at the highest skill scores, many mistakes would be made in letting indices be the final word.

Advisor: Mark Anderson