Numerical simulation and analysis of the propagation of a prefrontal squall line
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Abstract
An observational and numerical study of the squall line that occurred on 17-18 June 1978 is described. This squall line was initially triggered by the strong surface convergence along a cold front, and stretched from Illinois to the Texas panhandle. The squall line was aligned with the surface front during its initial development (at 0000 UTC 18 June 1978), but then propagated faster than the front, resulting in a separation of approximately 200 km by 0300 UTC and 300-400 km by 0600 UTC. The CSU RAMS model is used to model the squall line development and propagation. Several sensitivity experiments ...
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