WASHINGTON FLOW REPORT

Last Updated: December 4, 2025

Washington State's river systems have displayed a variety of streamflow conditions, with several rivers experiencing lower than normal flows, which could impact water enthusiasts looking for recreational opportunities or communities dependent on these water resources. The Columbia River at the International Boundary reported 83,900 cubic feet per second (cfs) with a slight 3.2% change in the last 24 hours, flowing at 97.77% of its normal rate, while the Spokane River at Spokane is flowing at a significantly reduced rate of 3,340 cfs, 85.27% of its typical flow. The Pend Oreille River near Ione shows a robust streamflow of 17,400 cfs, close to its normal rate. Conversely, the Yakima River Basin is experiencing low flows across the board, with the Yakima River at Mabton flowing at a mere 52.97% of its normal rate, which could indicate potential concerns for water availability and ecology in the region.

Noteworthy for whitewater enthusiasts, the Wenatchee River at Monitor is seeing a reduced flow of 1,510 cfs, at 62.46% of normal, which can affect rafting conditions. Additionally, the Green River below Howard A Hanson Dam, a popular whitewater trail, is flowing at 35.76% of its normal rate, presenting less than ideal conditions for river sports. In terms of flooding potential, no major rivers are currently indicating alarming increases that could suggest imminent flood dangers; however, the Lewis River at Ariel saw a significant 24-hour increase in flow of 54.92%, although it's still below normal at 83.27% of its typical streamflow. Residents and visitors in affected watersheds should stay informed on streamflow changes, as they could influence water availability, recreational activities, and local ecosystems.