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<br />o In 0 2 ;) <br /> <br />. <br /> <br />. <br /> <br />llDril 15. 1997 Forecast of Colorado River Flow into <br />lake R:1.Jell (11 (Million Acre-feetl <br /> <br />USER arx:l. National Weather Service <br />lIPril-Jul v Water Year 1997 <br /> <br />O1arqe Fran Last <br />Month I s Forecast <br />lIPrihJul v Wat Yr 1997 <br /> <br />Maximum (2 ) <br />Mean <br />Minimum ( 2) <br /> <br />13.300 <br /> <br />18.395 <br /> <br />8.800 <br /> <br />13.095 <br /> <br />-1.000 <br />-0.500 <br />-0.200 <br /> <br />-0.900 <br />-0.500 <br />-0.200 <br /> <br />11.000 * <br /> <br />15.695 ** <br /> <br />* 'Ihis IOOnth's A-J forecast is 142% of 30-year A-J average shewn below. <br />** This IIIOnth's WY forecast is 134% of 3o-year WY average shCMl below. <br /> <br />Comparison with past records <br />of Colorado River <br />inflow into lake Powell <br />(at Lee Fen:y prior to 1962) <br /> <br /> lIPril-Jul v Flow Water Year Flow <br />lDng-Ti1IIe Average (1922-96) 8.020 11.828 <br />30-yr . Average (1961-90) 7.735 11.724 <br />10-yr, Average (1987-96) 6.149 9.763 <br />Max. of Record 15.404 (1984) 21.873 (1984) <br />Min. of Record 1. 286 (1977) 3.663 (1977) <br />Last Year (1996) 7.322 10.784 <br /> <br />(1) Under conditions of no other DWer Basin reservoirs, <br /> <br />(2) USER anj NWS forecasts iOOicate the probability of 19 chances out of <br />20 that the actual fleM will not exceed the maximum value, arx:l. will not be <br />less than the minimum value. <br /> <br />-5- <br />