It is well known that typical climate models struggle to represent dust emission processes in monsoonal regions, mainly because their relatively coarse horizonal resolution precludes representation of the convective processes that ultimately generate high dust-generating winds there. Our study uses a set of novel simulations made with a global model that can explicitly represent these processes to demonstrate that when such meteorology is represented, there is a 3-fold increase in dust from the Sahel region of Africa, during the monsoon season. The relative contribution of Sahel to global dust emission is thus doubled. Our findings suggest that dust from monsoonal regions is underestimated in current climate models, and that global high-resolution modeling is needed to more accurately simulate the global dust cycle.