Copyright 1997-2003
River Info™
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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 19 |
12,000 |
448.7 |
15,900 |
643.0 |
21,800 |
1146.2
|
10,600 |
| May 20 |
12,500 |
448.6 |
15,900 |
643.4 |
21,800 |
1146.0 |
10,600 |
| May 21 |
11,700 |
448.7 |
15,900 |
643.8 |
21,900 |
1145.7 |
10,600 |
| May 22 |
8,100 |
449.1 |
15,900 |
644.2 |
21,900 |
1145.5 |
10,600 |
| May 23 |
13,700 |
448.9 |
16,300 |
644.6 |
21,900 |
1145.3 |
10,600 |
| May 24 |
12,500 |
448.9 |
16,300 |
644.4 |
14,400 |
1145.2 |
10,600 |
| May 25 |
12,500 |
448.9 |
16,300 |
644.1 |
12,800 |
1145.2 |
10,600 |
| Average |
11,900 |
- |
16,100 |
- |
19,500 |
- |
10,600 |
| May 26 to Jun 1 |
12,600 |
448.9 |
16,400 |
644.2 |
17,200 |
1144.3 |
11,100 |
| Jun 2 to Jun 8 |
13,000 |
448.9 |
15,900 |
644.0 |
15,900 |
1143.9 |
14,100 |
Current
Lake Powell storage is 12,256 thousand acre-feet (KAF) (50 percent of capacity).
Lake Mead storage is 16,096 KAF (62 percent of capacity). Total system storage
is 34,738 KAF (58 percent of capacity). Lake Powell elevation is 3605.23 feet.
The
observed 2003 April - July unregulated inflow into Lake Powell is 4.5 million
acre-feet, or 57 percent of average.
Yesterday,
the average Colorado River flows were 1,154 cfs near the Yuma Fourth Avenue
Bridge and 1,460 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 May 19, 2003 are expected to be 1,660 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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