Laserfiche WebLink
<br />STREAMFLOW <br />Streamflow for the Colorado River, Green River and San Juan River stations for April 2000 are <br />shovlI1 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 US. <br />Geological Survey Water Resources Division, Utah District. A comparison of monthly <br />streamflow to average monthly streamflow during an 86 year period from 1914 to 1999 is <br />presented for each in figure 2 on page 4. <br /> <br />'I <br /> <br />Table 2. <br /> <br />Streamtlow for the Colorado River. Green River and San Juan River. Aprii 2000 <br />CUMULA T1VE % OF 86 YEAR <br />MONTI-IL Y (19 I 4- I 999) <br />(OCT99-APROO) CUMULATIVE <br />DISCHARGE DISCHARGE <br />(1000 AF.) (OCT99-APROO) <br /> <br />APRIL <br />DISCHARGE <br />(1000 a.f) <br /> <br />% OF 83 YEAR <br />(1914- I 996) <br />APRIL <br />DISCHARGE <br /> <br />Colorado River <br /> <br />near Cisco, Ut <br /> <br />Adjusted ea) <br /> <br />Green River <br /> <br />at Green River. Ut <br /> <br />Adiusted (b) <br /> <br />San Juan River <br /> <br />near Bluff, Ut <br /> <br />Adjusted (e) <br /> <br />Total <br /> <br />Adiusted Totai <br /> <br />ColoT3do River <br /> <br />at Lees Ferry (d) 919.0 <br /> <br />(a) Adjusted for change in storage in B\ue Mesa Reservoir. Storage began"m Blue Mesa ReservOIr on October 27. 1965. <br />(b) Adjusted for change In storage in Flaming Gorge and Fontene!le Reservoirs. Storage began in ;;laming Gorge Reservoir <br />on November 1, 1962. and in Fontenelle Reservoir in October of 1964. . <br />Adjusted [or change in Navajo Reservoir. Storage began on June 27. \962. Not adjusted for San Jual\-Chama <br />diversions. <br />Including the Paria River discharge. <br /> <br />390.2 <br />401.7 <br /> <br />348.6 <br />360.2 <br /> <br />104.9 <br />175.4 <br />937.28 <br /> <br />':i <br /> <br />(d) <br /> <br />74% <br /> <br />82% <br /> <br />83% <br /> <br />1860.4 <br />1685.2 <br /> <br />75% <br /> <br />1598.3 <br />II &6.3 <br /> <br />78% <br /> <br />451.9 <br />435.3 <br /> <br />61% <br /> <br />FORECAST <br />According to the May 15th mid-month forecast the April through July forecast decrease.d overall <br />with Lake Powell expecting an inflow of5400 (1000 a.f), 70%. <br /> <br />Table 3. Flow comparisons of the Upper Colorado Basin Reservoirs <br />OUTLOOK <br />APR-JUL 2000 <br />(1000 a.f.) <br />5400 <br />575 <br />550 <br />575 <br />355 <br /> <br />Lake Powell <br /> <br />Flarmng Gorge <br />Blue Mesa <br /> <br />F ontenelle <br /> <br />Navaio <br /> <br />APRIL INFLOW <br />(1000 a. f) <br />794 <br />\28 <br />95 <br />92 <br />138 <br /> <br />PERCENT <br />OF AVERAGE <br /> <br />79.00% <br />75.00% <br />128.00% <br />94.00% <br />84.00% <br /> <br />PERCENT <br />OF AVERAGE <br />70.00% <br />68.00% <br />7900% <br />68.00% <br />46.00% <br />