The Middle Tombigbee Chickasaw Watershed (HUC 03160201) covers an area of approximately 5,367 square miles in northeastern Mississippi and northwestern Alabama. The watershed is characterized by its hilly terrain and numerous streams, including the Tombigbee River and its tributaries. The hydrology of the area is influenced by a subtropical climate, with precipitation occurring primarily in the form of rainfall. Snowfall is rare, and snowpack is generally not a significant factor in the watershed's hydrology. Surface water quality in the watershed is generally good, although elevated levels of sediment and nutrients can be found in some areas. The watershed contains several reservoirs, including Aliceville Lake and Aberdeen Lake, which are used for recreation, flood control, and power generation. The area experiences a humid subtropical climate with hot summers and mild winters. Climate trends in recent years have shown an increase in average temperatures and precipitation levels.