DISTRICT OF COLUMBIA FLOW REPORT

Last Updated: December 20, 2025

Streamflow levels across District Of Columbia are currently 8.0% of normal, with the Rock Creek At Sherrill Drive Washington reporting the highest discharge in the state with 14.8cfs and gauge stage of 1.73 ft. Meanwhile, the Watts Branch At Washington is seeing a spike in streamflows today after experiencing a 43.16% increase since yesterday, and currently running at 1.36cfs.

Maximum gauge stage in the state was last observed at the Watts Branch At Washington, currently reporting a stage of 4.18ft. The Watts Branch At Washington in the Middle Potomac-Anacostia-Occoquan watershed is surging for this time of year at 1.36cfs, about -91.74% of normal.

       



The District of Columbia experiences a humid subtropical climate, with hot summers and mild winters. The Potomac River is the major surface flow that runs through the city, and its tributaries include the Anacostia River and Rock Creek. The city's water supply comes from the Potomac River and its reservoirs, including the Great Falls Reservoir and Little Seneca Lake. Snowfall is a common occurrence in the winter months, and the city's snowpack plays a role in the seasonal flow of the Potomac and its tributaries. The District of Columbia is also susceptible to flooding due to intense rainfall events and storm surges from hurricanes.


       

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