The Upper Saline watershed, HUC 08040203, covers an area of approximately 1,539 square miles in central Arkansas. The hydrology of the area is primarily influenced by the Ouachita Mountains to the south and the Arkansas River to the north. The region experiences a humid subtropical climate, with hot summers and mild winters. Specific snowpack in the area varies year to year, with some years having significant snow accumulation and others having very little. Surface water in the watershed includes the Saline River and several large reservoirs, including Lake Ouachita and Lake Winona. Reservoir constituents in the area include a variety of fish species, such as bass and crappie, as well as recreational opportunities like boating and fishing. Interesting climatic facts in the area include frequent thunderstorms in the summer months and occasional winter storms. Recent trends suggest an increase in extreme weather events, including flooding and drought.