04/07 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)
Apr 7 14,500 446.7 20,700 640.7 18,900 1152.3 10,100
Apr 8 14,500 446.9 20,700 640.5 19,300 1152.1 10,100
Apr 9 13,500 447.2 19,200 640.5 19,900 1151.9 10,100
Apr 10 12,500 447.5 19,200 640.5 19,900 1151.8 10,100
Apr 11 15,500 447.4 19,200 640.5 19,300 1151.6 10,100
Apr 12 15,000 447.3 19,200 640.3 17,400 1151.5 10,100
Apr 13 15,000 447.3 19,200 640.1 16,800 1151.3 10,100
Average 14,400 - 19,600 - 18,800 - 10,100
Apr 14 to Apr 20 13,900 447.7 18,800 639.8 18,800 1150.2 10,100
Apr 21 to Apr 27 13,600 448.1 18,700 639.6 18,800 1149.1 10,100

Current Lake Powell storage is 12,419 thousand acre-feet (KAF) (51 percent of capacity). Lake Mead storage is 16,797 KAF (65 percent of capacity). Total system storage is 35,488 KAF (60 percent of capacity). Lake Powell elevation is 3606.88 feet.

The projected 2003 April - July unregulated inflow into Lake Powell is 5.2 million acre-feet, or 66 percent of average.

Yesterday, the average Colorado River flows were 948 cfs near the Yuma Fourth Avenue Bridge and 3,252 cfs at the Northerly International Boundary. The average release from Painted Rock Dam was 15 cfs and Alamo Dam was 25 cfs. The Morelos Dam diversions for the week of April 7, 2003 are expected to be 3,460 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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