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<br />001243 <br /> <br />.. <br /> <br />- <br /> <br />March 1. 2001 Preliminarv Forecast of Colorado River Flow into <br />Lake ~ll (1) (Million Acre-feet) <br /> <br />USER and National Weather Se:rvice <br />J\oril-Julv Water Year 2001 <br /> <br />Change Fran Last <br />M::lnth's Forecast <br />J\oril-Julv Wat Yr 2001 <br /> <br />M3ximum (2) <br /> <br />10.300 <br /> <br />13.809 <br /> <br />+0,100 <br /> <br />-0.021 <br /> <br />Mean <br /> <br />7,000 * <br /> <br />10,109 ** <br /> <br />+0.700 <br /> <br />+0.579 <br /> <br />Minimum (2) <br /> <br />4,200 <br /> <br />6,909 <br /> <br />+1.100 <br /> <br />+0.979 <br /> <br />* This rronth's A-J forecast is 90% of 30-year A-J average shown l:elow, <br />** This rronth's WY forecast is 86% of 30-year WY average shown l:elow, <br /> <br />Camarison with past records <br />of Colorado River <br />inflow into Lake ~ll <br />(at Lee Ferry prior to 1962) <br /> <br /> J\oril-Julv Flow Water Year Flow <br />lDng-Tirre Average (1922-2000) 8.018 11.869 <br />30-yr, Average (1961-90) 7.735 11.724 <br />10-yr. Average (1991-2000) 7.434 11.403 <br />Max. of Record 15.404 (1984) 21.873 (1984) <br />Min. of Reoord 1. 286 (1977) 3.663 (1977) <br />Last Year (2000) 4.352 7.310 <br /> <br />(1) Under oonditions of no other Upper Basin reservoirs. <br /> <br />(2) USER and NWS forecasts indicate the probability of 19 chances out of <br />20 that the actual flow will not exceed the maximum value, and will not I:e <br />less than the minimum value. <br /> <br />-5- <br />