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r <br /> ARKANSAS BASIN December, 1998 <br /> Basinwide Conditions Assessment: I ' <br /> �7. The SWSI value ofQ0.4 indicates ythy�at for November the ARKANSAS RIVER BASIN <br /> basin- water supplies were near normal. The Natural S surface Water Supply Index History <br /> Resources Conservation Service reports December 1 snowpack 4_ <br /> is 103%of normal. Flow at the gaging station Arkansas River _ <br /> near Portland averaged 469 cfs, as compared to the long term 3 , 1, ' <br /> _ <br /> 2- <br /> average of 441 cfs. Storage in Turquoise,Twin Lakes,Pueblo, I k - 1 : • <br /> and John Martin reservoirs totaled 180% of normal as of the 1- - -- ` <br /> end of November. 1 ,1' littlylitt,i14-�'` ` ! . .'.. <br /> .r. <br /> ,, <br /> Outlook <br /> a -27 . , <br /> The Winter Water storage period began in the a = <br /> Arkansas River basin on November 15. The first two weeks of 3- <br /> this sixteen week period yielded nearly 34,000 acre-feet of ............................................ .. .. ...... <br /> JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 JAN00 JAN97 JAN98 <br /> water storage in various participating reservoirs. Last year's WNTWYEAR <br /> storage volume for this same time period was 43,000 acre-feet, <br /> with the 5 year moving average being 31,000 acre-feet. <br /> Administrative/Management Concerns <br /> The annual meeting for the Arkansas River Compact ARKANSAS RIVER NR. PORTLAND <br /> Administration takes place this month in Lamar, Colorado. 150 FLOW BY WATER YEAR <br /> The states of Colorado and Kansas will, as usual, discuss the 140 <br /> past year's operations of John Martin Reservoir and other 130 <br /> issues affecting the reservoir and the water right entitlements „o <br /> of each state. Colorado's Arkansas basin Division Engineer is g, <br /> the Operations Secretary for this interstate compact. o i 90 <br /> ug Bo <br /> Public Use Impacts 5 u 70 <br /> None. <br /> 50 <br /> ,0 . <br /> 30 <br /> 20 <br /> Oct Nov Dec Jan Feb tiMch <br /> WHIM <br /> 0 WET C19E4j O 061 C1977) A AVG X 1899 <br /> REPRESENTATIVE RESERVOIRS <br /> Arkansas River Bas 1 n <br /> 240 <br /> 220- <br /> 200- <br /> M <br /> F 18D <br /> 160 <br /> u n - <br /> •1 140- <br /> bF 120— <br /> \ <br /> 100— \ <br /> e84:-7 \/-\/-\ /\'\\Z\ 7A <br /> 2°-'//\ //N\ -\\\ & <br /> 0 <br /> John Wirtln Puebla T6rpuols. Twin Lakes <br /> ® Ar9. 11/30 Contents ® 11/30/98 Contents <br /> 4 <br />