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Last modified
1/26/2010 3:12:49 PM
Creation date
10/12/2006 4:18:56 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8282.600.40
Description
Colorado River Annual Operations Reports
Basin
Colorado Mainstem
Date
1/1/1999
Author
USDOI/BOR
Title
Colorado River Reservoir Operation Status Reports Part 1
Water Supply Pro - Doc Type
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<br />Anyone needing further information about the daily operations of Navajo Reservoir should <br />contact Rege Leach in the Durango Office at (970) 385-6500. <br /> <br />Glen Canvon Dam - Unregulated inflows to Lake Powell were about 114 percent of nonnal in <br />December and actual inflows into Lake Powell were fairly steady at about 11,000 cfs. Lake <br />Powell current reservoir elevation is now about 3682 feet with a live storage of 21.6 MAE <br /> <br />The National Weather Service forecast issued on January 8 showed a dramatic reduction of over <br />2 MAF in the expected spring runoff volume for 1999, the result of very dry weather throughout <br />the basin. We will reduce January releases accordingly beginning Monday, January II, and have <br />reduced the expected monthly releases for the rest of water year 1999. While there is still some <br />uncertainty, we expect that during the remainder of the month of January releases will average <br />about 15,000 cfs, with weekday and Saturday hourly flows fluctuating between about 11,000 cfs <br />and 19,000 cfs, and Sunday flows fluctuating between 11,000 cfs and 14,000 cfs. <br /> <br />Current snowpack conditions vary considerably in the Colorado River basin, from about 50 <br />percent of normal in the central portion of the basin to near nonnal at sites in the Green and San <br />Juan basins. Currently, we expect February releases to average about 14,000 cfs, with March <br />through May releases expecled to be lower stilI. However, much of the snow accumulation <br />season still remains, and it is very possible that late winter and spring precipitation will increase <br />the expected runoff accordingly. Our website at www.uc.usbr.gov will be updated on January I I <br />to show expected releases for the remainder of the water year. <br />
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