Publication Date

1982

Document Type

Dissertation/Thesis

First Advisor

Petersen, Ralph Allen

Degree Name

M.S. (Master of Science)

Department

Department of Geography

LCSH

Cyclones||Storms||Jet stream||Weather forecasting

Abstract

A simple numerical model in isentropic coordinates is developed to predict stability change and moisture transport associated with severe weather outbreaks. Data from 23 April 1968 are used to test the models ability to preserve detail throughout the forecast period and to assess the accuracy of the model. In regions where the atmosphere is found to be conducive to severe weather development, thunderstorm occurrences were verified using existing satellite pictures and observed storm damage reports. The results indicate that the model forecast destabilization ahead of the jet stream as it moved eastward. This forecast was well related to observed occurrence of severe weather. Moisture transport predicted by the model in the low levels was also found to resemble typical patterns in a mid-latitude cyclone.

Comments

Includes bibliographical references.||Includes maps.

Extent

vi, 61 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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