Lower Colorado River Operations Schedule

Note: You may now view this report with near real-time data at this link. The link is updated hourly with our most recent operations data and operational projections.


Releases from Davis and Parker dams will vary from about 1,700 cubic feet per second
(cfs) to 15,000 cfs during a 24-hour period.  River levels will vary during the 24-hour
periods with the higher levels coinciding with periods of peak hydroelectric power
generation.  Levels below the dams are usually highest during the afternoon and early
evening.  Average daily releases may vary in response to changing conditions.

Average daily releases and midnight lake elevations for the week, as well as
anticipated averages for the following 2 weeks, are scheduled as follows:


                   Parker              Davis               Hoover
                   Dam       Lake      Dam       Lake      Dam        Lake
                   Average   Havasu    Average   Mohave    Average    Mead
                   Release   Elev.     Release   Elev.     Release    Elev.
       Date        (cfs)     (ft)      (cfs)     (ft)      (cfs)      (ft)
       -----       -----     -----     -----     -----     -----      -----
       Dec 10       6400     447.4      7800     638.7      7800      1078.9
       Dec 11       6100     447.2      7800     638.6      7800      1079.0
       Dec 12       5600     447.0      7800     638.6      7700      1079.1
       Dec 13       4600     447.0      7800     638.6      7700      1079.2
       Dec 14       6200     446.8      7800     638.5      7700      1079.4
       Dec 15       6300     446.6      7800     638.5      7700      1079.5
       Dec 16       6300     446.4      7800     638.5      7400      1079.6
       
       Average      5900                7800                7700
       
       Dec 17 to
       Dec 23       4500     446.7      7700     638.3      7700      1080.3
       
       Dec 24 to
       Dec 30       3900     446.6      6500     638.7      7700      1081.0


Current Lake Powell storage is 10,429 thousand acre-feet (KAF) (43 percent of capacity).
Lake Mead storage is 9,889 KAF (38 percent of capacity).  Total system storage is 27,257
KAF (46 percent of capacity).  Lake Powell elevation is 3,585.62 feet.

Yesterday, the average Colorado River flows were 918 cfs near the Yuma Fourth Avenue
Bridge and 1,748 cfs at the Northerly International Boundary.  The average release from
Painted Rock Dam was 0 cfs and Alamo Dam was 10 cfs.  The Morelos Dam diversions for the
week of 10-Dec-2018 are expected to be 1,679 cfs.

ALL RIVER USERS should remember that fluctuating river flows may conceal or create
natural hazards such as moving sandbars, gravel bars, unstable riverbanks, floating or
submerged debris, or other unfamiliar obstacles.  Caution should be exercised while using
the river between Davis Dam and the Mexican Border at San Luis, Arizona.


                This Schedule can now be accessed on the Internet at:
                   www.usbr.gov/lc/region/g4000/hourly/rivops.html








Last updated: 7-December-2018


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.