Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,600
cubic feet per second (cfs) to 25,000 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)
---- ----- ---- ----- ---- ----- ----
Jun 20 12300 448.4 16400 643.1 16400 1100.8
Jun 21 12500 448.3 16400 643.1 16400 1100.9
Jun 22 11000 448.4 16400 643.0 16400 1101.0
Jun 23 8600 448.7 16400 643.0 16400 1101.1
Jun 24 13000 448.6 16400 643.0 16400 1101.2
Jun 25 12000 448.6 16400 642.8 14300 1101.4
Jun 26 12500 448.5 16400 642.5 13700 1101.6
Average 11700 16400 15700
Jun 27 to
Jul 3 12000 448.3 15900 642.3 15900 1102.5
Jul 4 to
Jul 10 12200 448.2 15000 642.3 15400 1103.6
Current Lake Powell storage is 15,753 thousand acre-feet (KAF)
(65 percent of capacity).
Lake Mead storage is 11,509 KAF (44 percent of capacity).
Total system storage is 35,105 KAF (59 percent of capacity).
Lake Powell elevation is 3,637.87 feet.
The April-July forecast for the Colorado River is 12.60 million
acre-feet or 159 percent of average.
Yesterday, the average Colorado River flows were 647 cfs near the
Yuma Fourth Avenue Bridge and 1,760 cfs at the Northerly
International Boundary. The average release from Painted Rock Dam
was 0 cfs and Alamo Dam was 50 cfs. The Morelos Dam diversions
for the week of 20-Jun-2011 are expected to be 1,786 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.
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