Abstract: According to the requirements of operations, the Meteorological Bureau of Shenzhen Municipality has begun to study the weather nowcasting methods since 2006. In 2006, TITAN (thunderstorm identification, tracking, analysis and nowcasting)algorithm was introduced from the United States. As a supplement to TITAN algorithm, the cross-correlation method has been developed since 2008 and was used in weather service of the 2011 World University Games in Shenzhen. Due to the inherent defects of the cross-correlation method, obvious deviations can be found in the prediction of radar echo that generated locally and quickly changed temporally and spatially. Therefore, optical flow method was developed in 2013 and the method has been improved as particle filtering fusion algorithm to improve weather nowcasting for westerlies system such as squall line. To adapt to the development of intelligent weather nowcasting, the cooperation with Harbin Institute of Technology (Shenzhen) for artificial intelligent nowcasting based on GAN (generative adversarial networks) has been developed since 2017.