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Last modified
1/26/2010 12:26:55 PM
Creation date
10/11/2006 9:51:16 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8282.600.40
Description
Colorado River Annual Operation
Basin
Colorado Mainstem
Date
1/1/1999
Author
UCRC
Title
Content and Streamflow of Selected Colorado River Basin Reservoirs and Tributaries
Water Supply Pro - Doc Type
Publication
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<br />~" STREAMFLOW <br />Streamflow for the Colorado River, Green River and San Juan River stations for May 1999 are <br />shown in Table 2. Data presented in the following table was obtained from the monthly report of <br />streamflow and reservoir contents in the Upper Colorado River Basin, as provided by the U. S. <br />Geological Survey Water Resources Division, Utah District. A comparison of monthly <br />streamflow to average monthly streamflow during an 84 year period from 1914 to 1997 is <br />presented for each in figure 2 on page 4. <br /> <br />Table 2. <br /> <br />MAY <br />DISCHARGE <br />(1000 aJ.) <br /> <br />Streamflow for the Colorado River, Green River and San Juan River, Mav 1999 <br />CUMULATIVE % OF 84 YEAR <br />%OF83YEAR MONTHLY (1914-1997) <br />(1914-1996) (MA Y 99) CUMULATIVE <br />MAY DISCHARGE DISCHARGE <br />DISCHARGE (1000 AT) (MA Y 99) <br /> <br />Colorado River <br /> <br />near Cisco, Ut <br /> <br />Adjusted (a) <br /> <br />Green River <br /> <br />at Green River, Ut <br /> <br />Adjusted (b) <br /> <br />San Juan Ri ver <br /> <br />near Bluff, Vt <br /> <br />Adjusted (e) <br /> <br />Total <br /> <br />Adjusted ToW <br /> <br />Colorado River <br /> <br />at Lees Fen)' (d) 1055.0 <br /> <br />(a) Adjusted for change in storage in Blue Mesa Reservoir. Storage began in Blue Mesa. Resen'oir on October 27, 1965. <br />(b) Adjusted for change in stomge in Flaming Gorge and Fontenelle Reservoirs. Storage began in Flaming Gorge Reservoir <br />on November 1, 1962, and in FonteneHe Reservoir in October of 1964. <br />(c) Adjusted for change in Navajo Reservoir. Storage began on June 27, 1962. Not adjusted for San Juan-Chama <br />di\:ersions. <br />(d) Induding the: Paria River discharge. <br /> <br />7355 <br />7932 <br /> <br />68% <br /> <br />23892 <br />2358.6 <br /> <br />69% <br /> <br />914.9 <br />1069.7 <br /> <br />112% <br /> <br />3066.9 <br />2612.2 <br /> <br />105% <br /> <br />183.7 <br />299.1 <br />2162 <br /> <br />91% <br /> <br />702.2 <br />870.0 <br /> <br />83% <br /> <br />FORECAST <br />According to the June 15th mid-month forecast, the May inflows ranged frem 83%-158% of <br />average. The April through July forcast ranges from 86%-140%, with Lake Powell decreasing to <br />94% of average. <br /> <br />Table 3. flow comparisons of the Upper Colorado Basin Reservoirs <br /> Outlook <br /> May Flow Percent of Apr-Jul 1999 Percent of <br /> ( I 000 a.f) Average ( I 000 a.f) Average <br />F ontenelle 275 149.00% 1120 132.00% <br />Flaming Gorge 460 158.00% 1675 140.00% <br />Blue Mesa 178 8300% 600 86.00% <br />Navajo 265 95.00% 670 87.00% <br />Lake Powell 1875 84.00% 7300 9400% <br />
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