Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 5,000 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)
---- ----- ---- ----- ---- ----- ----
Apr 29 13000 448.8 16800 643.1 19600 1113.3
Apr 30 13500 448.7 16800 643.2 19600 1113.1
May 1 11800 448.7 15800 643.3 16600 1112.9
May 2 9900 448.9 15800 643.3 16600 1112.8
May 3 13200 448.7 15800 643.3 16600 1112.7
May 4 13200 448.5 15800 643.2 14600 1112.6
May 5 12800 448.3 15800 643.0 14000 1112.5
Average 12500 16100 16800
May 6 to
May 12 11500 448.0 15800 642.6 15700 1111.7
May 13 to
May 19 11200 447.8 15400 642.5 15700 1110.8
Current Lake Powell storage is 11,456 thousand acre-feet (KAF) (47 percent of
capacity). Lake Mead storage is 13,023 KAF (50 percent of capacity). Total
system storage is 31,271 KAF (52 percent of capacity). Lake Powell elevation
is 3,596.89 feet.
The April-July forecast for the Colorado River is 2.90 million acre-feet or
41 percent of average.
Yesterday, the average Colorado River flows were 672 cfs near the Yuma Fourth
Avenue Bridge and 2,656 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 45 cfs. The
Morelos Dam diversions for the week of 29-Apr-2013 are expected to be 1,726 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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