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<br />,\ <br /> <br />Ou14b3 <br /> <br />. <br /> <br />'U <br /> <br />. <br /> <br />December 1. 2004 Final Observed of Colorado River Flow Into <br />Lake Powell (1) (Million Acre-feet) <br /> <br /> Change From Last <br /> USBR and National Weather Service Month's Proiected <br /> April-Julv Water Year 2004 April-Julv Wat Yr 2004 <br />Maximum (2) 3.640 6.428 0,163 0,088 <br />Mean 3,640 . 6,128 .. 0.163 0,088 <br />Minimum (2) 3.640 5,828 0.163 0.088 <br /> <br />. This month's A-J observed is 46% of the 30-year A-J average shown below, <br />.. This month's W-Y observed is 51% of the 3D-year W-Y average shown below, <br /> <br />Comparison with past records <br />of Colorado River <br />inflow into Lake Powell <br />(at Lee Ferrv prior to 1962) <br /> <br />Long-Time Average (1922-2003) <br />30-yr. Average (1961-90) <br />10-yr. Average (1994-2003) <br />Max, of Record <br /> <br />Min, of Record <br /> <br />Last Year (2003) <br /> <br />April-Julv Flow <br /> <br />Water Year Flow <br /> <br />7.887 <br />7.735 <br />7.027 <br />15.404 (1984) <br />1,115 (2002) <br />3,918 <br /> <br />11.699 <br />11.724 <br />11.260 <br />21.873 (1984) <br />3.058 (2002) <br />6,358 <br /> <br />(1) Under conditions of no other Upper Basin reservoirs, <br /> <br />(2) USBR 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 be <br />less than the minimum value. <br /> <br />-5- <br />