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<br />simpler convective precipitation systems observed in the Texas HIPLEX <br />program. <br /> <br />Doswell (1977) was successful in diagnosing mesoscale conver- <br />gence from the synoptic-scale surface observations by using a band- <br />pass filtering technique. This technique requires a 6 h analysis <br />period to perform the time- and space-weighted objective analysis. <br />rle found that severe weather occurred in regions where the objective <br />analysis detected low-level convergence. Different results in the <br />band-pass analysis occur when different low-pass filters are used; <br />consequently, prior analysis of the optimum scale of the phenomenon <br />is required. Schaefer and Doswell (1979) have developed a routine to <br />compute area divergence using the Bellamy triangle (1948) technique <br />on upper-air data. Their analysis shows that upper-level divergence <br />from synoptic-scale soundings can be used to successfully diagnose <br />potential for more intense and severe convection. Maddox (1980a) <br />modified the technique used by Doswell to study the kinematics <br />of mesoscale convective complexes. His analysis technique is used in <br />this study. <br /> <br />Ulanski and Garstang (1978) have shown that high-resolution <br />cloud-scale surface observations (separation distances of 6.5 km) <br />were successful in the observation of convergence fields associated <br />with convective precipitation over Florida. Observations Jsing a <br />surface network covering a small area of 20 by 33 km showed that <br />cloud-subcloud layer interactions are very important in predicting <br />and analyzing the natural rainfall from convective cloud systems. <br />Five-minute analyses of surface wind fields were performed during a <br /> <br />28 <br />