8/21 Lower Colorado River Operations Schedule
Water Flow Reports


Colorado River



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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 averages for the following 2 weeks, are scheduled as follows:

Date Parker Dam Average Release (cfs) Lake Havasu Elev. (cfs) Davis Dam Average Release (cfs) Lake Mohave Elev. (ft) Hoover Dam Average Release (cfs) Lake Mead Elev. (ft) Glen Canyon Dam Average Release (cfs)
Aug 21 11,000 447.8 13,800 643.5 14,600 1197.3 8,000
Aug 22 11,000

447.8

13,800

643.6

14,600 1197.2 8,000
Aug 23
10,500
447.9 13,800 643.6 14,600

andnbsp;

1197.1
8,000
Aug 24
8,000

448.2

13,800 643.6 14,500 1197.0 8,000
Aug 25 11,000 448.2 13,800 643.6 14,500 1196.9 8,000
Aug 26 11,000 448.3 13,800 643.3 10,600 1196.8 8,000
Aug 27 11,000 448.1 13,800 643.0 10,000 1196.8 8,000
Average 10,500 andnbsp; 13,800 andnbsp; 13,300 andnbsp; 8,000

Aug 28 Sept 3

10,000

448.2

12,600 643.1 12,400

1196.5

8,000
Sept 4 Sept 10 8,800 448.2 10,900 642.3 9,600 1196.1 8,000

Current Lake Powell storage is 21,404 thousand acre-feet (KAF) (88 percent of capacity). Lake Mead storage is 22,586 KAF (87 percent of capacity). Total system storage is 51,802 KAF (87 percent of capacity). Lake Powell elevation is 3681.0 feet.

Yesterday, the average Colorado River flows were 1,580 cfs near the Yuma Fourth Avenue Bridge and 2,330 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 August 21st are expected to be 1,500 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 exercised while using the river between Davis Dam and the Mexican Border at San Luis, Arizona.

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