Abstract
Abstract On 14 February 1992, a long-lived moderate-amplitude mesoscale gravity wave formed in Kansas during the Storm-scale Operational and Research Meteorology-Fronts Experiment Systems Test (STORM-FEST). Wave formation was evident in correlated surface pressure and wind fields. The wave of depression, accompanied by a weak rainband, tracked across the state. A wealth of data was collected on the mature wave as it passed over the STORM-FEST dual-Doppler domain. However, the mechanism of genesis remained difficult to ascertain, since wave formation occurred in a region of less comprehensive observations. The genesis of the STORM-FEST gravity wave is successfully simulated using the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (Penn State–NCAR) Mesoscale Model (MM5), which was run at 6-km grid spacing in the innermost domain. The lee cyclone movement, dry airmass development, and gravity wave formation over Kansas were successfully captured by the model. Results ...
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