Adam Weiner

Date of Award


Document Type


Degree Name

Master of Science (MS)


Atmospheric and Earth Science

Committee Chair

Kevin R. Knupp

Committee Member

Lawrence D. Carey

Committee Member

John R. Mecikalski


Severe storms--Forecasting, Mesometeorology, Convection (Meteorology), Doppler radar


High-shear, low-CAPE (HSLC) environments present unique operational forecasting challenges during the cool season across the southeastern US. Existing literature has sought to characterize the climatology of HSLC and Quasi-Linear Convective System (QLCS) environments as well as study bow echoes and mesovortices under moderate to large CAPE regimes. This case study investigates a cool season mid-Tennessee Valley severe weather event, where 200-300 J kg-1 of CAPE and 0-1 km shear of 25 m s-1 along with strong low-level forcing resulted in a severe weather event which was difficult to anticipate. Findings of this research suggest that bow echoes and mesovortices depend primarily on the strength and depth of low-level shear, with weak CAPE values not precluding their development or severe weather production.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.