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<br />STREAMFLOW <br />Streamflow for the Colorado River, Green River and San Juan River stations for September 1999 <br />are shown in Table 2. Data presented in the following table was obtained from the monthly report <br />of 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 19 I 4 to 1997 is <br />presented for each in figure 2 on page 4. <br /> <br />) <br /> <br />Table 2. <br /> <br />Streamflow for the Colorado River, Green River and San Juan River, September 1999 <br />CUMULATIVE % OF 84 YEAR <br />MONTHLY (1914-1997) <br />(SEP 99) CUMULATIVE <br />DISCHARGE DISCHARGE <br />(1000 A.F.) (SEP 99) <br /> <br />SEPTEMBER <br />DISCHARGE <br />(1000 a.f.) <br /> <br />% OF 83 YEAR <br />(1914-1996) <br />SEPTEMBER <br />DISCHARGE <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 River <br /> <br />near Bluff, Ut <br /> <br />Adjusted (c) <br /> <br />Total <br /> <br />Adjusted Total <br /> <br />Colorado River <br /> <br />at Lees Ferry (d) 1142.4 <br /> <br />(a) Adjusted for cha.nge in storage in Blue Mesa Reservoir. Storage began in Blue Mesa Reservoir on October 27, 1965. <br />(b) Adjusted for ch:mge in storage in F1aming Gorge and Fontenelle Reservoirs. Storage began in Flaming Gorge Reservoir <br />on November I, 1962. and in Fontenelle Reservoir in October of 1964. <br />(c) Adjusted for change in Navajo Reservoir. Storage began on June 27, 1962. Not adjusted for Ssn Juan-Charna <br />divl:fSions. <br />Cd) Including the Paria River discharge. <br /> <br />386.54 <br />326.54 <br /> <br />4790.2 <br /> <br />129% <br /> <br />4906.3 <br /> <br />91% <br /> <br />261.92 <br />211.22 <br /> <br />5430.6 <br />5269.1 <br /> <br />126% <br /> <br />117% <br /> <br />280.17 <br />208.77 <br />746.53 <br /> <br />1829.4 <br />2119.7 <br /> <br />217% <br /> <br />121% <br /> <br />.FORECAST <br />According to the October 15th mid-month forecast, September inflows ranged trom 116'}'o-236'1'. <br />of average. The October through December forcast ranges from 100%-105%, with Lake Powell <br />decreasing to average. <br /> <br />Table 3. <br /> <br />Fontenelle <br />Flaming Gorge <br /> <br />Blue Mesa <br /> <br />Navajo <br />Lake Powell <br /> <br />Flow comparisons of the Upper Colorado Basin Reservoirs <br />September Percent Projected Inflow Percent <br />Inflow of Average Oct-Dee 1999 of Average <br />(1000 aJ.) (1000 a. f.) <br />64 116% 135 <br />85 127% 165 <br />63 167% 102 <br />109 286% 90 <br />814 170% 1500 <br /> <br />105% <br />103% <br />110% <br />100% <br />100% <br />