Research Article

A Convection Nowcasting Method Based on Machine Learning

Table 1

Characteristics of the 7 cases.

Date (DD/MM/YYYY)Severe weather phenomenaMesoscale features

19/05/2017Heavy rainfall, maximum wind gust (20 m/s), maximum diameter of hail (1 cm)Shear line
22/05/2017Heavy rainfall, maximum wind gust (25 m/s)Trough and shear line
12/06/2017Heavy rainfall, maximum wind gust (21 m/s)Trough in northern China
20/06/2017-21/06/2017Thundershower (light rainfall), maximum wind gust (23 m/s)Cold air diffusing southward in northwesterly airflow
04/07/2017Heavy rainfall, maximum wind gust (20 m/s)Cyclonic vortex with shear line
14/07/2017Heavy rainfall, maximum wind gust (20 m/s), maximum diameter of hail (1 cm)Cyclonic vortex with shear line
01/08/2017Continuous heavy rainfall with thunder and lightningTyphoon trough