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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 />the general operation of the reservoir is encouraged to attend. For further information about <br />these meetings or the daily operations of Navajo Reservoir please contact Pat Page in <br />Reclamation's Durango, Colorado Office at (970) 385-6560. <br /> <br />Glen Canyon Dam - Releases from Glen Canyon Dam in January have averaged 13,800 cfs, with <br />a total of 850,000 acre. feet scheduled to be released during the month. Releases in February will <br />be lower than January, with releases averaging about 11,700 cfs for the month. On weekdays <br />during February, daily fluctuations due to load following will vary between a low of about 8,500 <br />cfs (during late evening and ~arly morning "off-peak" hours) to a high of about 14,500 cfs <br />(during late afternoon and early evening "on-peak" hours). On weekends, releases will vary <br />between a low of about 8,500 cfs during off-peak hours to a high of about 14,000 cfs and 12,750 <br />cfs during on-peak hours on Saturdays and Sundays, respectively. Releases in March will likely <br />be lower than February. March releases are currently scheduled to be 600,000 acre-feet for the <br />month which translates to an average release of 9,800 cfs. Scheduled March releases may be <br />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 />snow pack at about 140 percent by the first week of November. However, basinwide precipitation <br />has been below average since that time. As of January, 31, 2001, Colorado River Basin <br />snowpack is 81 percent of average. <br /> <br />The January final inflow forecast issued by the National Weather Service (NWS) on January 4, <br />, 2001, forecasted April through July unregulated inflow to Lake Powell to be 7.2 million acre-feet, <br />or 93 percent of average. This forecast was revised downward by the NWS on January l6,200l, <br />to 6.8 million acre.feet, or 88 percent of average. <br /> <br />Unregulated inflow to Lake Powell has been moderately below average for the past few months. <br />Unregulated inflow in November and December was 73 and 76 percent of average, respectively. <br />January unregulated inflow wiJI be about 80 percent of average. <br /> <br />The current elevation of Lake Powell is 3,666.4 feet (33.6 feet from full pool). Current storage is <br />approximately 19.3 million acre-feet (80 percent of capacity). Inflow to Lake Powell is currently <br />running about 6,000 cfs. <br />
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