CALIFORNIA FLOW REPORT

Last Updated: December 19, 2025

California's river systems are experiencing diverse flow conditions, with significant variations observed in both the northern and southern parts of the state. The Smith River near Crescent City stands out with a high streamflow of 9,280 cubic feet per second (cfs), though this represents a slight decrease over the last 24 hours. In contrast, the Colorado River below Parker Dam has a reduced flow at 2,300 cfs, which is 38.68% below what's considered normal for the area. Whitewater enthusiasts should note the Truckee River near Truckee, with a flow of 116 cfs and gage height of 1.82 feet, indicating low flow conditions that may impact recreational activities. Additionally, the Eel River at Scotia is flowing at a notable 13,600 cfs, with a gage height of 15.29 feet, which is above normal and could signal caution for nearby communities and whitewater trails.

Looking at Southern California, the San Mateo Creek near San Clemente is at 166 cfs, which is over 356% above the norm, indicating potential for more vigorous water activities. Meanwhile, the Sacramento River near the capital exhibits a moderate flow decrease, now at 10,600 cfs and a gage height of 12.97 feet, suggesting a potential impact on water supply and environments downstream. Major rivers such as the Klamath and Trinity also show decreased flows, with the Klamath River near Klamath at 16,900 cfs and the Trinity River near Hoopa at 4,870 cfs. These levels are critical for communities and ecosystems relying on these water sources, and they also serve as key indicators for fishermen and boaters who seek out these rivers for recreation. Overall, the state's diverse waterway conditions underscore the importance of monitoring streamflow for safety, water management, and the enjoyment of California's natural water resources.