Total streamflow across the Greenbrier River was last observed at 381 cfs, and is expected to yield approximately 755 acre-ft of water today; about 36% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,044 cfs, with recent peaks last observed on 2021-03-02 when daily discharge volume was observed at 110,980 cfs.

Maximum discharge along the river is currently at the Greenbrier River At Alderson reporting a streamflow rate of 175 cfs. This is also the highest stage along the Greenbrier River, with a gauge stage of 2.35 ft at this location. This river is monitored from 4 different streamgauging stations along the Greenbrier River, the highest being situated at an altitude of 2,729 ft, the Greenbrier River At Durbin.

The Greenbrier River is a 173-mile-long river located in West Virginia, USA. It flows from the Appalachian Mountains to the New River and has played an important role in the state's history, serving as a transportation route for Native Americans and European settlers. The river is fed by numerous tributaries and has a varied hydrology, with rapids, pools, and riffles. The river's flow is managed by several reservoirs and dams, including the Burnsville Dam and the Bluestone Dam. These dams have helped to control flooding and provide hydroelectric power. The Greenbrier River is also a popular destination for recreational activities such as fishing, kayaking, and tubing. It is surrounded by forests and farms, which contribute to the region's agricultural economy.