Water Supply Reservoir Projections
LAKE MENDOCINO
![](https://www.sonomawater.org/media/Images/Water Resources/Water Supply/Projections/Current Lake Mendocino Long-Range Storage Projection.jpg)
LAKE SONOMA
![](https://www.sonomawater.org/media/Images/Water Resources/Water Supply/Projections/Current Lake Sonoma Long-Range Storage Projection.jpg)
Notes:
- Reservoir projections were developed from ensemble runs of river/reservoir operations model considering the hydrologic record from water years 1911 through 2017.
- Plotted percentiles are based on end-of-year storage for the water year.
- The river/reservoir operations model does not simulate flood control operations, which are the responsibility of the U.S. Army Corps of Engineers. Plots of projected storage are capped at the top of the major/minor deviation pools. Consequently, these projections may be quite different than observed storage based on flood control decisions made by the U.S. Army Corps of Engineers.
- For more details on the development of projections, refer to Technical Memorandum.