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Waterflow reports for the Colorado river from Glenn Canyon dam to Parker dam

Lower Colorado River Operations Schedule

Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second 
(cfs) to 23,000 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:


            Parker             Davis              Hoover         
            Dam       Lake     Dam       Lake     Dam       Lake 
            Average   Havasu   Average   Mohave   Average   Mead 
            Release   Elev.    Release   Elev.    Release   Elev.
Date        (cfs)     (ft)     (cfs)     (ft)     (cfs)     (ft) 
----        -----     ----     -----     ----     -----     ---- 
May 18      11000    448.8     15400    643.3     18500    1098.9
May 19      11000    448.7     15400    643.5     18500    1098.7
May 20      10000    448.8     15400    643.7     18500    1098.6
May 21       9500    448.9     15200    643.8     18500    1098.4
May 22      10000    448.9     15200    644.0     18500    1098.2
May 23      11000    448.9     15200    643.7     11500    1098.1
May 24      11000    448.8     15000    643.5     12600    1098.1

Average     10500              15300              16700

May 25 to
May 31      11100    448.8     15700    643.6     16400    1097.1

Jun  1 to
Jun  7      10900    448.9     14700    643.5     14900    1096.2

Current Lake Powell storage is 13,421 thousand acre-feet (KAF) (55 percent of 
capacity). Lake Mead storage is 11,437 KAF (44 percent of capacity).  Total 
system storage is 32,538 KAF (55 percent of capacity). Lake Powell elevation 
is 3,616.74 feet.

The April-July forecast for the Colorado River is 7.1 million acre-feet or 
90 percent of average.

Yesterday, the average Colorado River flows were 1,370 cfs near the Yuma Fourth 
Avenue Bridge and 1,568 cfs at the Northerly International Boundary.  The 
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 45 cfs. The 
Morelos Dam diversions for the week of 18-May-2009 are expected to be 1,580 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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