Wind erosion is one of the primary causes of soil degradation in many arid and semi-arid regions. The severity of this natural disaster and the concentration of suspended particles significantly affect air quality and horizontal visibility. The primary objectives of this study were to analyze spatial variations in dust storm events under different visibility conditions, identify dust-prone areas, and examine the relationship between the dust storm index and horizontal visibility during the period 2002-2022. To this end, the aforementioned index and the frequency of dust events with visibility less than 200, 200-1000, 1000-3000, 3000-5000, and 5000-9000 meters, representing extremely severe to very weak conditions, were calculated for 11 synoptic stations in the province. Finally, the percentage of changes in the dust storm index under different visibility conditions was determined using the coefficient of determination. The results of this study indicated lower visibility in the cities of Bam, Fahraj, and Narmashir compared to other regions of Kerman province, suggesting that these areas are more sensitive to wind erosion. Findings also showed that under extremely severe and severe conditions, approximately 50% of the variations in the dust storm index could be explained by the frequency of events recorded with visibility less than 1000 meters. However, under moderate to very weak conditions, more than 71% of the variations in the index corresponded to changes in visibility greater than 1000 meters. In other words, as the visibility radius increased, the correlation with the Dust Storm Index (DSI) also increased, and the effectiveness of this index was higher for events with moderate to very weak conditions compared to extremely severe and severe conditions. Therefore, using these results, better planning can be made for forecasting and managing dust storm events, especially in vulnerable areas of Kerman province.