05/26 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)
May 26 12,800 448.6 14,700 643.9 16,100

1145.2

10,600
May 27 12,500 448.4 15,000 643.9 16,100 1145.1 10,600
May 28 11,500 448.4 14,500 644.0 16,100 1145.0 10,600
May 29 8,000 448.7 15,000 644.0 16,100 1144.9 10,600
May 30 11,000 448.8 15,000 644.1 16,100 1144.8 10,600
May 31 13,500 448.5 15,000 644.0 14,300 1144.7 10,600
Jun 1 12,500 448.3 15,900 643.7 12,000 1144.7 14,100
Average 11,700 - 15,000 - 15,300 - 11,100
Jun 2 to Jun 8 13,000 447.6 15,900 643.4 15,900 1144.3 14,100
Jun 9 to Jun 15 13,000 447.5 15,900 643.2 15,900 1143.9 14,100

Current Lake Powell storage is 12,315 thousand acre-feet (KAF) (51 percent of capacity). Lake Mead storage is 15,987 KAF (62 percent of capacity). Total system storage is 34,697 KAF (58 percent of capacity). Lake Powell elevation is 3605.23 feet.

The observed 2003 April - July unregulated inflow into Lake Powell is 4.3 million acre-feet, or 54 percent of average.

Yesterday, the average Colorado River flows were 1,146 cfs near the Yuma Fourth Avenue Bridge and 1,437 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 May 26, 2003 are expected to be 1,750 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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