The Watts Bar Lake watershed (HUC 06010201) is located in eastern Tennessee and covers an area of approximately 1,184 square miles. The watershed is characterized by a humid subtropical climate with hot summers and mild winters. The hydrology of the watershed is dominated by the Tennessee River and its tributaries. The area receives an average of 52 inches of precipitation annually, with snowfall occurring occasionally in the winter months. The surface water in the watershed is used for recreational activities such as fishing, boating, and swimming, and is also used for power generation at the Watts Bar Dam. The reservoir constituents of the lake include sediment, nutrients, and dissolved oxygen. Interesting climatic facts and trends in the watershed include an increase in average annual temperature and more frequent extreme weather events in recent years.