Analysis of a Severe Convection Weather in Sichuan and Chongqing on June 18-19,2010

Using the routine observation data and NCEP 1°×1°final-analysis data, a case of severe convection weather in Sichuan and Chongqing was analyzed.The main conclusions are:the moisture transportation flux is transferred from Bay of Bengal.The area of severe convective weather process are corresponding with upwards vertical velocity field and vorticity.The instable atmosphere of upper layer moves southwards, and cooperate with conditionally unstable atmosphere of lower layer are advantageous to formation and developing of the convective weather.Wet Q Vector divergence is more closely associated with precipitation in the later 6-hour.