Lower Verdigris

Watershed Hydrology

The Lower Verdigris watershed covers approximately 2,915 square miles in northeastern Oklahoma. The region experiences a humid subtropical climate with hot summers and mild winters. Precipitation is evenly distributed throughout the year, with an average of 44 inches annually. The watershed is home to the Verdigris River, which is a major tributary of the Arkansas River. The river is used for navigation, irrigation, and recreation. The area is prone to flooding, and several dams and reservoirs have been constructed to manage water flow. The main reservoirs in the watershed are Oologah Lake and Keystone Lake, which provide drinking water and hydroelectric power. Snowfall is not common in the region, and when it does occur, it typically melts quickly due to the mild climate. Overall, the Lower Verdigris watershed is an important resource for water supply and recreation in northeastern Oklahoma.


Surface Flows

Lower Verdigris Watershed

Snowpack Depths

Lower Verdigris Watershed

Dams & Reservoirs

Lower Verdigris Watershed

Groundwater Levels

Lower Verdigris Watershed

Lower Verdigris Rivers

Rivers of the Watershed