Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,400
cubic feet per second (cfs) to 24,000 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 27 12400 448.0 16400 642.3 16300 1101.9
Jun 28 12600 447.9 16400 642.3 16300 1102.1
Jun 29 11300 447.9 16400 642.2 16300 1102.2
Jun 30 9300 448.2 16400 642.2 16300 1102.3
Jul 1 13500 448.1 16400 642.2 16300 1102.4
Jul 2 12200 448.0 15000 642.1 14300 1102.6
Jul 3 12500 447.9 15000 642.0 13700 1102.8
Average 12000 16000 15600
Jul 4 to
Jul 10 12200 447.7 15000 641.9 15400 1103.9
Jul 11 to
Jul 17 12100 447.7 15000 641.9 15400 1105.0
Current Lake Powell storage is 16,482 thousand acre-feet (KAF)
(68 percent of capacity).
Lake Mead storage is 11,610 KAF (45 percent of capacity).
Total system storage is 36,032 KAF (61 percent of capacity).
Lake Powell elevation is 3,644.01 feet.
The April-July forecast for the Colorado River is 12.6 million
acre-feet or 159 percent of average.
Yesterday, the average Colorado River flows were 595 cfs near the
Yuma Fourth Avenue Bridge and 1,769 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 27-Jun-2011 are expected to be 1,820 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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