Handout (195.6 kB)
Preexisting thunderstorm outflow provides the starting point for the beginning of a cooked boundary. Research aims to test the following hypothesized mechanisms responsible for cooked boundary formation: (1) As insolation occurs throughout the day, water vapor on the cooler side will decrease at a slower rate due to smaller vertical mixing; (2) low-level moisture pooling along the boundary interface occurs due to confluent flow along the boundary interface; and (3) moisture flux from the surface can create a localized area of high moisture on the cool side because it is vertically mixed through a shallower layer than on the warm side.
Experiments will be conducted using the Weather Research and Forecasting (WRF) model. The overall objectives are to provide insight into the evolution difference between a regularly evolving preexisting boundary and a cooked boundary, and to determine the necessary environmental properties for development of a cooked boundary. Preliminary results will be presented at the conference.
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