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WSP02079
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Last modified
1/26/2010 12:34:20 PM
Creation date
10/11/2006 10:53:59 PM
Metadata
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Template:
Water Supply Protection
File Number
8282.600.40
Description
Colorado River Annual Operations Reports
Basin
Colorado Mainstem
Date
1/1/2001
Author
USDOI/BOR
Title
Colorado River Reservoir Operation Status Reports Part 1
Water Supply Pro - Doc Type
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<br />vary between a low of about 9,750 cfs during off-peak hours to a high of about 16,750 cfs and <br />15,750 cfs during on-peak hours on Saturdays and Sundays, respectively. Releases in February <br />will likely be lower than January. February releases are currently scheduled to be 650,000 <br />acre-feet for the month which translates to an average release of 11,700 cfs. Scheduled February <br />releases may be adjusted for changes in hydrology and forecasted inflow. <br /> <br />Early season snowpack in the Colorado River Basin began on a high note with basinwide <br />snowpack at about 140 percent by the first week of November. November, however, was a drier <br />and cooler than average causing snowpack to recede back to near average levels by December I, <br />2000. December has been near average for both tem~rature and precipitation in the Colorado <br />River Basin. As of December 29, 2000, Colorado River Basin snowpack is 93 percent of <br />average. <br /> <br />Inflow to Lake Powell was extremely low in the summer of 2000, but has been rebounding over <br />the past few months. August, 2000 unregulated inflow was only 163,000 acre-feet (27 percelll of <br />average). This volume was the single lowest monthly volume of unregulated inflow to Lake <br />Powell since closure of Glen Canyon Dam in 1963. Unregulated inflow in September, October, <br />and November was 52, 66, and 73 percent of average, respectively. December, 2000 inflow <br />will likely end up being about 77 percelll of average. <br /> <br />The current elevation of Lake Powell is 3,670.3 feet (29.7 feet fTom full pool). Current storage is <br />approximately 19.9 million acre-feet (82 percelll of capacity). Inflow to Lake Powell is currently <br />running about 6,000 cfs. <br />
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