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<br />00l1H <br /> <br />. <br /> <br />. <br /> <br />Julv 1. 1999 Forecast of Colorado River FlCM into <br />lake Powell (1) (Million lIcre-feetl <br /> <br />USBR and National Weather Service <br />ADril-Julv Water Year 1999 <br /> <br />C1Ian3'e Fran last <br />Month's Forecast <br />ADril-Julv Wat Yr 1999 <br /> <br />Maxinunn(2) <br />Mean <br />MinilmJm(2 ) <br /> <br />8.100 <br /> <br />12.683 <br /> <br />-1.500 <br />-0.100 <br /> <br />-1. 500 <br />-0.100 <br /> <br />7.500 * <br /> <br />11.683 ** <br /> <br />6.900 <br /> <br />10.683 <br /> <br />+1.300 <br /> <br />+1.300 <br /> <br />* '!his m:mth I s A-J forecast is 97% of 30-year A-J average shown belCM. <br />** '!his m:mth's WY forecast is 100% of 3D-year WY average shown belCM. <br /> <br />CcrrQ:Jarison with =c;t records <br />of Colorado River <br />inflCM into lake RMlll <br />(at Lee Ferry prior to 1962) <br /> <br /> ADril-Jul v FlCM Water Year FlCM <br />l.Cln:J-'!'ine Average (1922-98) 8.071 11.917 <br />30-yr. Average (1961-90) 7.735 11.724 <br />10-yr . Average (1989-98) 6.912 10.620 <br />Max. of Rea:lrd 15.404 (1984) 21.873 (1984) <br />Min. of Rea:lrd 1.286 (1977) 3.663 (1977) <br />Last Year (1998) 8.625 13.660 <br /> <br />(1) Un:ler COI'rli<.:ions of no other UWer Basin reservoirs. <br /> <br />(2) USBR and NWS forecasts in:licate the prOOability of 19 ~ cut of <br />20 that the actual flCM will not exceed the maximum value, and will not be <br />less than the minimum value. <br /> <br />-5- <br />