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<br />00 un J <br /> <br />. <br /> <br />. <br /> <br />Jan",n'V 30. 1997 Forecast of Colorado River Flow into <br />rake PowelH1l (Million Acre-feetl <br /> <br />USER an:i National Weather service <br />llDril-Julv Water Year 1997 <br /> <br />C1ange Fran Last <br />Month's Forecast <br />llDril-Jul v Wat Yr 1997 <br /> <br />Maxilm.un (2) <br />Mean <br />Minimum (2) <br /> <br />15.900 <br /> <br />20.778 <br /> <br />+3.600 <br /> <br />12.000 * <br /> <br />16.478 ** <br /> <br />+4.200 <br /> <br />+4 .164 <br />+4.764 <br />+5 .164 <br /> <br />8.800 <br /> <br />U.878 <br /> <br />+4.600 <br /> <br />* '!his month's A-J forecast is 155% of 30-year A-J average shown below. <br />** '!his month's WY forecast is 141% of 30-year WY average shown below. <br /> <br />('nmn,<,rison with ""..t, records <br />of Colorado River <br />inflow into lake ~ll <br />(at Lee Ferry prior to 1962) <br /> <br /> llDril-Julv Flow Water Year Flow <br />Lag-'l'ime Average (1922-96) 8.020 11.828 <br />3Q-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) Urxier corxlitions of no other {4:.per Basin resezvoirs. <br /> <br />(2) USBR an:i NWS forecasts in:licate the probability of 19 chances cut of <br />20 that the actual flow will not exceed the maxi.nnJm value, an:i will not be <br />less than the miniIm.nn value. <br /> <br />-5- <br />