06/23 PROJECTED LOWER COLORADO RIVER OPERATIONS SCHEDULE
Water Flow Reports


Colorado River



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PROJECTED LOWER COLORADO RIVER
OPERATIONS SCHEDULE

Releases from Davis and Parker dams will vary from about 8,000 cfs to 22,000 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 average for the following 2 weeks, are scheduled as follows:

Date Parker Dam Average Releases (cfs)
Lake Havasu Elev.
(ft)
Davis Dam Average Release (cfs) Lake Mohave Elev.
(ft)
Hoover Dam Average Release (cfs) Lake Mead Elev.
(ft)
Glen Cyn Dam Average Release
(cfs)
Jun 23 12,000 448.9 15,600 642.6 17,600

1143.5

14,100
Jun 24 12,500 448.9 14,600 642.7 17,600 1143.4 14,100
Jun 25 11,500 448.9 11,000 643.2 17,600 1143.3 14,100
Jun 26 9,000 448.9 13,800 643.4 17,600 1143.2 14,100
Jun 27 10,000 448.9 15,500 643.5 17,600 1143.2 14,100
Jun 28 12,000 448.9 15,000 643.4 13,500 1143.1 14,100
Jun 29 12,000 448.9 15,200 643.1 12,000 1143.2 14,100
Average 11,300 - 14,400 - 16,200 - 14,100
Jun 30 to Jul 6 12,600 448.8 14,700 643.2 15,300 1143.0 14,100
Jul 7 to Jul 13 12,700 448.6 14,700 643.0 14,900 1143.0 14,600

Current Lake Powell storage is 13,388 thousand acre-feet (KAF) (55 percent of capacity). Lake Mead storage is 15,783 KAF (61 percent of capacity). Total system storage is 35,878 KAF (60 percent of capacity). Lake Powell elevation is 3616.47 feet.

The forecasted 2003 April - July unregulated inflow into Lake Powell is 4.25 million acre-feet, or 57 percent of average.

Yesterday, the average Colorado River flows were 776 cfs near the Yuma Fourth Avenue Bridge and 1,794 cfs at the Northerly International Boundary. The average release from Painted Rock Dam was 0 cfs and Alamo Dam was 25 cfs. The Morelos Dam diversions for the week of June 23, 2003 are expected to be 1,980 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 be exercised while using the river between Davis Dam and the Mexican Border at San Luis, Arizona.

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