This report is a brief summary of the results of a test case study using the primitive equations to make numerical predictions out to six days after the initial time. Daily and select 5-day mean chart of 500-, 700-, and 1000-mb height and 1000 to 500- and 1000 to 700-mb thickness, along with their departures from normal, where produced directly from the model. For comparison, the barotropic 500-mb forecast heights were also obtained, and both primitive and barotropic forecasts were compared with the observed heights and thicknesses.