Abstract:Abstract: In order to extract the available information for thunderstorm early-warning, using observed data of surface automatic weather station, lightning location and Quzhou CINRAD-SA radar, radar echo of 29 thunderstorm gale cases from 2017 to 2021 are chosen, classified and statistically analyzed. The main results are as follows:(1) The spatial and temporal distribution of thunderstorm gales are uneven during warm seasons in Quzhou. Annual average thunderstorm windy days in central basin are obviously more than in mountain; Thunderstorm gales occur in March, May, and July have larger influence area. The thunderstorm gales tend to occur between mid-afternoon and early midnight; (2) According to the configuration of the weather situation, thunderstorm gales in Quzhou can be divided into the following four types: the subtropical high periphery type, the warm advection forcing type, the frontogenesis and shear type, and the cold advection forcing type;(3) During the period when the thunderstorm gale occurs, the radar echo can be divided into three categories according to the echo shape: the bow echo, belt-shaped echo and bulk cell echo, among which bulk cell echoes are the most frequent;(4) There are different early-warning indicators of thunderstorm gales for different shape radar echo. For the bow echo, thunderstorm gales can be predicted by high value speed at low elevation and mid-altitude radial convergence; for belt echo, the indicators are high value speed at low elevation and abruptly increasing VIL;for the bulk cell echo, only 36 % of the cases appeared high value speed at low elevation in advance. Thunderstorm gales caused by the bulk cell echo can be predicted in advance by abruptly increasing VIL and abruptly increasing echo tops (ET). These findings can provide references for the short-term forecasting and early-warning of thunderstorm gales in Quzhou.