Abstract: Numerical computations of the local change with respect to time of the local tendency of the vertical component of the vorticity of the surface wind and a stability index were made at 3-hour intervals for fifteen tornado ...

Abstract: The buoyancy equation is integrated to find the downward speed of a parcel of air that becomes cooler than its environment and sinks to the ground, such as a downdraft in a thunderstorm. This downdraft speed is related to ...

Abstract: The upper air sounding analysis technique currently employed by the Severe Local Storms Forecasting Unit of the U.S. Weather Bureau at Kansas City has been programmed for computation by an electronic computer. Equations ...

Abstract: Probability equations were developed for 12?36 h forecasts of thunderstorms, severe local storms, and major or family tornado outbreaks. The equations were derived by applying screening regression techniques to relate ...

Abstract: No abstract available.