The Lower Chickasawhay Watershed (HUC 03170003) covers approximately 1,798 sq miles in southeastern Mississippi. The topography of the watershed is characterized by numerous streams and low-lying areas. Hydrologically, the watershed is dominated by the Chickasawhay River, which is the largest tributary of the Pascagoula River. Snowfall is rare in this region, and typically only occurs in the northernmost areas of the watershed. Surface water resources in the watershed are mostly used for agricultural and industrial purposes. Reservoirs in the area include the Leaf River, Okatibbee Lake, and Quitman Reservoir. Climate in the watershed is warm and humid, with average temperatures ranging from 60-80°F. Interesting climatic trends in the area include increasing temperatures and precipitation, as well as an increase in extreme weather events such as heavy rainfalls leading to flooding.