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<br />COLORAOO BASIN <br /> <br />Basinwide CondItions Assessment <br />The SWSI value of -2,1 indicates that for April the <br />basin water supplies were below normal. The Natural <br />Resources Conservation Service reports that May 1 <br />snowpack IS 55% of normal. Flow at the gaging station <br />Colorado River near Dotsero was 957 cfs. as compared to <br />the long-term average of 1,845 cfs_ Storage in Green <br />Mountain, RUedl, and Williams Fork reservoirs totaled 127% <br />of normal as of the end of April <br />April precipitation was above normal downstream of <br />Dolsero, but below normal above that site Low elevation <br />snowpack is mostly gone, several weeks before normal melt- <br />off <br /> <br />Outlook <br />Mainstem runoff may peak by mid-May versus the <br />average peak date In early June The Colorado BaSin Rrver <br />Forecast Center is forecasting April-July runoff 10 be 47-66% <br />of average for various tributaries in the basin, Cameo runoff <br />is projected to be 58% of average <br /> <br /> <br />,. <br /> <br />. <br />, <br />, <br /> <br />!'II <br /> <br />. <br />,. <br /> <br />, <br /> <br />May-04 <br /> <br />-- <br /> <br />--~-----"'----""'" <br />...."..... <br /> <br />Administrative/ManaQemenl Concerns <br />Lake Powell is expected to contrnue to drop after this <br />season's low runoff. and a Colorado River compact call could <br />happen rf two or Ihree more below-average runoff years <br />follow this year. <br /> <br />-1- <br />-.- <br />-. --~- <br />2O:IOCO ~;;?~-~t~-::..... <br />o- <br />w <br /> <br />'O<JJQOOT <br /> <br />'2000c0. <br /> <br />I <br />1 'ocooco' <br />< <br />~ lIOO.QOO, <br />g <br />l <br />, <br />, <br />, <br />, <br />o <br /> <br />n~. <br /> <br />~~. <br /> <br />~~ <br /> <br />m~. <br /> <br />~~. <br />! <br />I~~' <br />l'.-JroJ. <br />, <br />^ <br />!~~. <br />, <br />~~. <br /> <br />,,~ <br /> <br />7 <br /> <br />CQ.CIPAOO_R""DOt5IO>lO,Fl..(MlIlY.....TEJlIY&Jl <br /> <br />. <br />/, <br /> <br />1 <br /> <br />+ <br />'-f -. <br />..-,/ <br />.~ . <br />~,.......---".-? ..--=' <br />t - ;__' <br />. <br /> <br />~. <br /> <br />, <br /> <br />- <br /> <br />~ <br /> <br />,~ <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />... <br /> <br />..'....,TI..... <br /> <br />..DRYIlOCIll <br /> <br />_.~ <br /> <br />.~ <br /> <br />~A1'I\IE1lESE!M)0lS <br /> <br />o. <br /> <br /> <br />-j <br /> <br /> <br /> <br />-I <br /> <br />--~ <br /> <br />~ <br /> <br />~- <br /> <br />."'9<iX1Co-Mru <br /> <br />.--- <br />