WASHINGTON FLOW REPORT

Last Updated: December 19, 2025

Streamflow levels across Washington are currently 259.0% of normal, with the Columbia River Below Priest Rapids Dam reporting the highest discharge in the state with 165000cfs and gauge stage of 18.9 ft. Meanwhile, the Toppenish Creek Near Fort Simcoe is seeing a spike in streamflows today after experiencing a 553.13% increase since yesterday, and currently running at 836cfs.

Maximum gauge stage in the state was last observed at the Cowlitz River Near Kosmos, currently reporting a stage of ft. The Cedar River At Powerplant At Cedar Falls in the Lake Washington watershed is surging for this time of year at 1910cfs, about 980.17% of normal.

       



Washington state is characterized by a diverse hydrology that is heavily influenced by its climate and geological features. The state's major surface flows are the Columbia River, Snake River, Yakima River, and Spokane River. These rivers are fed by numerous tributaries and are regulated by large reservoirs such as the Grand Coulee Dam and the Bonneville Dam. The state's mountainous terrain and heavy snowfall create significant watershed systems that contribute to river flow, with the snowpack in the Cascade Range being a primary contributor. Climate patterns such as El Niño and La Niña can impact precipitation rates and snowpack levels, leading to drought or flooding events. Overall, the hydrology of Washington is a complex and dynamic system that is heavily influenced by both natural and human factors.


       

Winter Storm Warnings

December 19 2025

Rafting & Kayaking

River Run Status Streamflow (CFS) Air Temp (F)
RUNNABLE 390 48
36.25
RUNNABLE 398 52