THE SYNOPTIC METEOROLOGICAL ANALYSIS ON THE 7619 TROPICAL STORM IN THE SOUTHERN HEMISPHERE

According, to the analysis of the pressure field, the constant level chart,the temperature-humidity field (θ_se),the cloud chart and other materials, this paper discusses the development of Strom 7619 in detail. The emphasis is especially on the features of development in the streamline field. This paper states that the features of the horizontal shear and the vertical shear of the streamline field near the ITCZ are the most important factors for the generating and the dying of a storm. Storm 7619 formed in the deep Easterlies near the southern part of the ITCZ boundary in the area of the smallest vertical shear (2.0-5.0m/s),and in the ensuing 24-48 hours period the lower level shear value incresed rapidly. The above discussion will provide information for weather prediction.