Releases from Davis and Parker dams will vary from about 4,400
cubic feet per second (cfs) to 24,000 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 16      12000    448.6     15200    643.6     17300    1095.5
May 17      12000    448.5     15200    643.7     17300    1095.6
May 18      11000    448.5     15200    643.8     17300    1095.7
May 19       9000    448.7     15200    643.9     17300    1095.8
May 20      12000    448.5     15200    644.0     17300    1095.9
May 21      12000    448.4     15600    644.0     15300    1096.1
May 22      12000    448.3     15600    643.9     14700    1096.3

Average     11400              15300              16600

May 23 to
May 29      11100    448.5     15700    644.1     16700    1097.2

May 30 to
Jun  5      11200    448.6     15800    644.2     16600    1098.1

Current Lake Powell storage is 13,172 thousand acre-feet (KAF)
(54 percent of capacity).
Lake Mead storage is 11,088 KAF (43 percent of capacity).
Total system storage is 31,725 KAF (53 percent of capacity).
Lake Powell elevation is 3,614.34 feet.

The April-July forecast for the Colorado River is 11.5 million
acre-feet or 145 percent of average.

Yesterday, the average Colorado River flows were 1,070 cfs near
the Yuma Fourth Avenue Bridge and 1,762 cfs at the Northerly
International Boundary.  The average release from Painted Rock Dam
was 0 cfs and Alamo Dam was 49 cfs.  The Morelos Dam diversions
for the week of 16-May-2011 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.