Lower Colorado Region

Parker Dam - Lake Havasu

Each graph shows a curve for observed historical data for the past 30 days and our most up-to-date modeled projections up to 30 days into the future. This page is updated on an hourly basis and reflects the most current data and projections in our database. Note that projections change as we adapt to changing water demands and hydrologic conditions within the Colorado River system.

Note: You may click-and-drag an area within the graphs to zoom in and double-click on the graph to return to the default zoom level. On mobile, you may use the pinch gesture to change zoom levels on the graphs.

Note: Automatic reports have not been checked for errors.

Please contact the Water Operations Control Center via e-mail at bcoowaterops@usbr.gov or via phone at (702) 293-8373 for additional questions or information.