Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Dyer, Jamie

Committee Member

Dixon, Grady

Committee Member

Brown, Mike

Date of Degree

8-12-2008

Original embargo terms

MSU Only Indefinitely

Document Type

Graduate Thesis - Campus Access Only

Major

Operational Meteorology

Degree Name

Master of Science

College

College of Arts and Sciences

Department

Department of Geosciences

Abstract

Many studies have been done on synopticallyorced systems and heavy rainfall, but little research has gone into forecasting training convective storms. The research in this paper examines 38 separate synopticallyorced convective extreme precipitation training (SCEPT) events to find trends and consistencies in the synoptic environment. Three separate cases were found in which a SCEPT event occurred: Closed Upper-Level Trough (CULL), Upper-Level Trough (ULT), and 850 Trough/Low (850TL). Each event occurred in areas of precipitable water greater than 36.42 mm (1.43 inches), near maximums of 850 hPa moisture convergence and 700 hPa upper-vertical velocities, under the 850 hPa jet, and in the warm sector of a mid-latitude cyclone. CULL and ULT events occurred in strongly forced synoptic environments where 500 and 300 hPa troughs were evident and generally positively tilted. Little upper-level forcing, above 700 hPa, was found in 850TL events.

URI

https://hdl.handle.net/11668/16298

Comments

heavy rainfall||thunderstorms||training||convection||precipitation

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