CALIFORNIA FLOW REPORT

Last Updated: December 25, 2025

The state of California is observing diverse streamflow conditions across its many rivers and canals, with some areas experiencing flow rates significantly higher than normal, indicative of potential flooding, while others are facing notably reduced flows. For water enthusiasts and those monitoring river health, the Upper Truckee River at Hwy 50 above Meyers stands out with an exceptionally high percentage of normal flow at 424.15%, accompanied by a current streamflow of 204 cfs (cubic feet per second) and a gage height of 6.8 feet, suggesting notable runoff, which may impact local waterways and whitewater conditions. Similarly, the Truckee River near Truckee reflects a high streamflow change over the last 24 hours, indicating swift changes in water volume that could affect river activities.

Notable fluctuations are also observed in southern rivers such as the Santa Ynez River near Santa Barbara, where an abnormally large streamflow of 5460 cfs, a staggering 1225.31% of the typical flow, raises concerns for flooding near populated areas and recreational sites. The Sacramento River near Rio Vista is another significant water body with a current streamflow of 68500 cfs, marking an increase in the last 24 hours and suggesting the need for careful monitoring, especially for communities and agricultural operations along the river. In contrast, the San Joaquin River near Mendota is experiencing flow drought conditions, with a current streamflow of just 149 cfs, only 1.8% of the normal flow, which may have implications for water supply and ecosystem health in the region. These patterns underscore the importance of vigilant water management and preparedness for both high-water and low-water scenarios in different parts of California.