A MECHANISM FOR ASSISTING IN THE RELEASE OF CONVECTIVE INSTABILITY

Publisher Website
Google Scholar
Abstract
A model is proposed as one means whereby an air mass characterized by the “typical” tornado sounding is converted to one described by the type of sounding observed in the vicinity of a tornado. By considering certain indications of the vorticity equation, it is possible to analyze configurations of jet axes and jet maxima such that low-level (850 mb.) convergence is surmounted by higher-level (500 mb.) divergence. Thus a model of jet structures is described which assists in, or possibly in some cases effects, the release of convective instability through vertical stretching or lifting. An example is presented to illustrate the use of this model in tornado forecasting and methods of application are outlined. Abstract A model is proposed as one means whereby an air mass characterized by the “typical” tornado sounding is converted to one described by the type of sounding observed in the vicinity of a tornado. By considering certain indications of the vorticity equation, it is possible to analyze configurations of jet axes and jet maxima such that low-level (850 mb.) convergence is surmounted by higher-level (500 mb.) divergence. Thus a model of jet structures is described which assists in, or possibly in some cases effects, the release of convective instability through vertical stretching or lifting. An example is presented to illustrate the use of this model in tornado forecasting and methods of application are outlined.

This publication has 0 references indexed in Scilit: