Performance Test of T639 Numerical Forecasting Products in Chengdu Region

By analyzing and examining the meteorological factors affecting the weather in Chengdu region, it introduced the forecast performance of T639, and got the characteristics in the application.By analysing of T639 numerical prediction product data in an important weather process and compared with ECMWF, the gaps and advantage is showed.It's also helpful to forecasters to make full use of the forecasting products.