04/14 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 14 14,700 447.1 19,000 641.8 22,000

1150.9

10,100
Apr 15 14,700 447.0 19,000 642.0 22,000 1150.7 10,100
Apr 16 13,000 447.2 18,700 642.2 22,000 1150.5 10,100
Apr 17 12,000 447.5 19,100 642.4 22,000 1150.3 10,100
Apr 18 15,000 447.4 19,100 642.5 22,000 1150.1 10,100
Apr 19 15,000 447.4 19,100 642.5 18,500 1149.9 10,100
Apr 20 15,000 447.4 19,100 642.4 18,500 1149.8 10,100
Average 14,200 - 19,000 - 21,000 - 10,100
Apr 21 to Apr 27 13,600 448.2 19,100 642.9 20,700 1148.4 10,100
Apr 28 to May 4 13,200 448.8 17,800 643.2 18,900 1147.3 10,100

Current Lake Powell storage is 12,355 thousand acre-feet (KAF) (51 percent of capacity). Lake Mead storage is 16,667 KAF (64 percent of capacity). Total system storage is 35,302 KAF (59 percent of capacity). Lake Powell elevation is 3606.23 feet.

The observed 2002 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 1,188 cfs near the Yuma Fourth Avenue Bridge and 3,349 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 14, 2003 are expected to be 3,350 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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