The Upper Chickasawhay Watershed (HUC 03170002) is located in southeastern Mississippi and covers an area of approximately 1,220 square miles. The watershed is characterized by a humid subtropical climate with hot summers and mild winters. The watershed receives an average annual precipitation of 55 inches, which is evenly distributed throughout the year. The surface water in the watershed is primarily sourced from the Chickasawhay River and its tributaries. There are no major reservoirs in the watershed. The snowpack is not a significant factor in the watershed as snowfall is rare. The hydrology of the watershed is influenced by the topography and soil characteristics of the area. The watershed is predominantly forested with some agricultural land use. Interesting climatic trends in the watershed include an increase in precipitation over the past century and an increase in the frequency and intensity of extreme weather events.