Cities have the ability to modify rainfall and thunderstorms locally. These changes are due to the various surfaces that make up urban areas - concrete, rooftops, asphalt, tree cover, etc. The combination of surfaces and human activities creates energy through heat and change local wind patterns. Other forms of infrastructure are also present near cities, such as reservoirs. Little research has been done to determine if and to what extent lake breezes interact with these urban effects. This study uses urban-scale models to answer that question in the Atlanta, Georgia area. Does its reservoir, Lake Lanier, aid in the enhancement of rainfall hotspots?