The Lower Ohio Bay watershed (HUC 05140203) covers an area of about 2,358 square miles and is located in southwestern Indiana and northwestern Kentucky. The hydrology of the watershed is characterized by the presence of numerous small streams and rivers that drain into the Ohio River. The area receives an average annual rainfall of about 45 inches, and the snowfall varies from year to year. The surface water in the watershed is used for water supply, irrigation, and recreation. The reservoirs in the watershed are mainly used for flood control and hydroelectric power generation. The interesting climatic trend in the watershed is that it is experiencing an increase in the frequency and intensity of extreme weather events, such as heavy rains and droughts. These events have a significant impact on the water resources of the watershed and the surrounding communities.