The northern part of Ningxia Hui Autonomous Region is situated in the temperate continental climate zone of Northwest China, where complex topography and the climatological characteristics of warm-season convective storm (CS) have not been fully understood. This study utilizes CINRAD/CD radar products and sounding data in Yinchuan from May to September in 2011-2016 to investigate the climatological characteristics of CS in northern Ningxia under different prevailing wind directions at 500 hPa and 700 hPa. In this research domain, we present a comprehensive analysis integrating the average circulation patterns, convective environments and CS intensity for the first time. The results demonstrate that solar radiative heating and topographic forcing from the Helan Mountains dominate the formation of CS climatological characteristics in northern Ningxia. Upon this foundation, dynamically varying prevailing winds induce more complex and diverse patterns in CS occurrence frequency, occurrence efficiency (defined as the ratio of CS occurrence frequency under a specific prevailing wind direction to the total frequency of that wind direction), diurnal variation, and spatial distribution. Notably, when southwesterly winds prevail at 500 hPa while easterly winds are blowing at 700 hPa, the influence of prevailing winds becomes particularly pronounced. The average 500 hPa circulation pattern associated with CS occurrence under a given prevailing wind direction characterizes the typical synoptic-scale systems and convective environments favorable for CS development under that flow regime, thereby directly determining CS occurrence efficiency and intensity. When northerly or northwesterly winds prevail at 500 hPa and northern Ningxia is positioned behind the trough, there is the lowest CS occurrence efficiency corresponding to the highest CAPE and CIN, and the CS intensity is the strongest. Under southerly or southwesterly wind regimes, northern Ningxia is situated between the ridge and trough, where favorable moisture transport conditions tend to cause maximum CS occurrence efficiency. During prevailing westerly flows, the mid-latitude circulation exhibits zonal characteristics with frequent upstream shortwave trough activity, causing the moderate levels of CS occurrence efficiency, CS intensity and environmental parameters. At 700 hPa, differences in CS occurrence efficiency and intensity across various prevailing wind directions are relatively smaller, with CS intensity showing a strong correspondence to the vertical temperature gradient.