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<br />001208 <br /> <br />. <br /> <br />. <br /> <br />Aucmst 1. 2000 Fbrecast of Colorado River Flow into <br />lake Powelll1l (Million Acre-feetl <br /> <br />USER am National Weather Service <br />Aoril-Julv Water Year 2000 <br /> <br />C1Jange From laSt <br />Month I S Forecast <br />ADril-.J\ll.v Wat Yr 2000 <br /> <br />Maxinn.JIn (2) <br />Mean <br />Mi.nllnum (2) <br /> <br />4.350 <br /> <br />7.046 <br /> <br />-0.750 <br />-0.150 <br />+0.450 <br /> <br />-1.150 <br />-0.450 <br />+0.250 <br /> <br />4.350 <br />4.350 *. <br /> <br />7.646 <br /> <br />7.346 ** <br /> <br />* 'Ibis m:mth's A-J forecast is 56% of 30-year A-J average shown below. <br />** 'Ibis lOOI1th's WY forecast is 63% of 30-year WY average shown below. <br /> <br />CoIm:Jarison with past re=rds <br />of Colorado River <br />inflow into lake Powell <br />(at Lee Ferry prior to 1962) <br /> <br /> ADril-Jul v Flow Water Year Flow <br />IDng-Time Average (1922-99) 8.065 11.927 <br />30-yr . Average (1961-90) 7.735 n.724 <br />10-yr . Average (1990-99) 7.321 11. 238 <br />Max. of Recore 15.404 (1984) 21. 873 (1984) <br />Min. of Recore 1. 286 (1977) 3.663 (1977) <br />laSt Year (1999) 7.621 12.712 <br /> <br />(1) Unjer con:titions of no other Upper Basin reservoirs. <br /> <br />(2) USER am NWS forecasts indicate the probability of 19 chances out of <br />20 that the actual flow will not exceed the maximum value, am will not be <br />less than the min:iJnum value. <br /> <br />-5- <br />