Composite Analysis of Hailstone Weather Happened in Shihezi Area of Xinjiang

By using the routine sounding data,Doppler radar echo data and ground automatic station data,this paper analyzed a hailstone weather took place in Shihezi region on July 19,2009.The results are as follows: the hailstone weather occurred under the condition of convection instability stratification,i.e.dry and cold in the middle-high layer,warm and wet in the low layer,sufficient water vapor,the befitting height of 0℃ layer and 20℃ layer,and strong vertical wind shear simultaneously.Doppler radar could primely monitor hailstone weather development and evolvement.The occurrence of dead wind region and strong echo regions with higher than 50dBz and cove configuration,the intense increase of vertical integral liquid water content(VIL),rain intensity(RZ) and the storm track information(STI)are indicative to hailstone weather.This study has preferable application value for hail prevention and disaster abatement in the future.