Last Updated: December 19, 2025
In Washington State, river enthusiasts should be aware of the diverse and dynamic streamflow conditions experienced across various waterways. The Spokane River at Spokane exhibits a significant elevation in streamflow, reaching 19100 cubic feet per second (cfs), marking a substantial 223.91% of its norm and suggesting potential flooding risks. Contrastingly, the Little Spokane River at Dartford is flowing at just 240 cfs, a mere 7.05% of what is considered normal, indicating flow drought conditions. The Columbia River at the International Boundary presents a different situation, with a current streamflow of 101,000 cfs, but registering a decrease of 2.88% in the last 24 hours, standing at only 7.85% of the expected flow rate, potentially impacting water availability downstream.
Moreover, notable changes have been observed in the Methow River at Twisp, where streamflow has decreased by 9.39% over the last day, yet it flows at an elevated 378.15% of the norm, which could affect areas like Pateros and Twisp, especially for recreational and whitewater activities. Similarly, the Nooksack River, with points like the one at Ferndale showing a streamflow of 11,200 cfs, a 37.78% decrease, could impact local ecosystems and recreational usage. Other rivers such as the Skagit, Snoqualmie, and Green River also show significant variances from their normal flows, with the Skagit River at Newhalem running high at 26,400 cfs, 264.95% of the norm, whereas the Green River near Auburn is at 9740 cfs, indicating potential for heightened whitewater experiences. These fluctuations underscore the importance of careful monitoring for residents and visitors to Washington's river systems, as conditions can quickly change, impacting both water-based activities and local communities.
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.
Residents of Washington State are urged to prepare for and respond to multiple severe weather warnings. The Skokomish River at Potlatch in Mason County is facing minor flooding with rapid water flow over roads, and flooding is forecasted for the Chehalis River at Porter in Grays Harbor County, affecting pasture lands and roads. The Cowlitz River at Randle and below Mayfield Dam in Lewis County, the White River near Mud Mtn. Dam Outflow in Pierce and King Counties, and the Cedar River at Renton in King County are all experiencing minor flooding that is expected to continue. Additionally, heavy snowfall is expected in the Cascades, affecting Snohomish, Northern King, Whatcom, Skagit, Pierce, Lewis, Southern King, and the Upper Slopes of the Eastern Washington Cascades Crest, which could seriously impact travel. A Coastal Flood Advisory for San Juan County warns of possible minor coastal flooding. Residents should monitor local updates, avoid affected areas, and heed instructions from authorities.
| River Run | Status | Streamflow (CFS) | Air Temp (F) |
|---|---|---|---|
|
Douglas Fir Campground to Mt. Baker Highway
Class II+ to III |
RUNNABLE | 390 | 48 |
|
Rock Island Campground to Ida Creek
Class II+ to III |
36.25 | ||
|
Snoqualmie Falls to Plum's Landing
Class II+ to III- |
RUNNABLE | 398 | 52 |