06/09 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 9 12,000 448.9 15,000 642.3 18,600

1144.5

14,100
Jun 10 12,500 448.9 14,000 642.6 18,600 1144.4 14,100
Jun 11 11,000 448.8 13,900 642.9 18,600 1144.3 14,100
Jun 12 9,000 449.0 13,900 643.2 18,600 1144.2 14,100
Jun 13 10,000 449.0 14,900 643.4 18,600 1144.1 14,100
Jun 14 12,000 448.9 16,400 643.2 13,600 1144.1 14,100
Jun 15 12,000 448.9 16,400 642.8 12,000 1144.1 14,100
Average 11,200 - 14,900 - 16,900 - 14,100
Jun 16 to Jun 22 13,000 448.6 16,400 642.3 15,900 1143.7 14,100
Jun 23 to Jun 29 13,000 448.9 16,400 641.8 15,900 1143.4 14,100

Current Lake Powell storage is 13,087 thousand acre-feet (KAF) (54 percent of capacity). Lake Mead storage is 15,897 KAF (61 percent of capacity). Total system storage is 35,572 KAF (61 percent of capacity). Lake Powell elevation is 3613.51 feet.

The projected 2003 April - July unregulated inflow into Lake Powell is 4.0 million acre-feet, or 50 percent of average.

Yesterday, the average Colorado River flows were 1,330 cfs near the Yuma Fourth Avenue Bridge and 1,569 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 9, 2003 are expected to be 1,910 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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