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SOUTH PLATTE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 2.9 indicates that for November the SOUTH PLATTE RIVER BASIN <br /> basin water supplies were above normal. Reservoir storage, 5 Surface Water Supply index History <br /> the major component in this basin in computing the SWSI . <br /> value, was 127% of normal as of the end of November. : . ] <br /> w 31.7 <br /> I. <br /> Storage in the major plains reservoirs, Julesburg, North s <br /> Sterling, and Prewitt, increased by 19,606 acre-feet during 2 *47.: .1; 7-' ---- <br /> November and are at 61% of capacity. Storage in the major 1 -� <br /> upper basin reservoirs, Cheesman, Eleven Mile, Spinney, and g 0 r"' - — 1� <br /> PP _ <br /> Antero, decreased by 2,083 acre-feet and are at 94% of ••A k <br /> r <br /> capacity. The Natural Resources Conservation Service reports : <br /> s -2 <br /> December 1 snowpack as 177% of normal. The National a <br /> Weather Service reports basin precipitation as 78%of normal _3 <br /> during the month. The mean daily flow of the South Platte -4 <br /> JAN86 JAN87 JAN19 JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 <br /> River at the Kersey gage was 729 cfs, as compared to the LONTH,YEAR <br /> 1961-1993 average of 894 cfs. Flow at the Colorado/Nebraska <br /> state line averaged 415 cfs. <br /> Primary diversions in November continued to be for <br /> reservoir storage. The Barr Lake storage and Denver storage <br /> calls continued on the mainstem of the South Platte with no SOUTH PLATTE RIVER NR. KERSEY <br /> call downstream of the Denver area. 450 FLOW WATER YEAR <br /> 400 <br /> Outlook <br /> 350 <br /> .----------/ <br /> A late storm in November provided significant <br /> snowfall in much of the basin and a good start to this winter's V n 300 <br /> snowpack. As is always the case,the overall adequacy of the o 250 <br /> snowpack will be dependent upon late winter and early spring w g 200 <br /> snows when the state generally receives the majority of its " 1S0 <br /> precipitation. <br /> 100 <br /> Reservoir levels continue to be above average for this <br /> time of year. Likewise, stream flows continue to be above 50 �' <br /> average. With present reservoir levels, snowpack,and stream 0 <br /> Oct Nov cac Jan Feb Lerch <br /> flows,basin administrators anticipate that all major reservoirs MONTH <br /> with adequate inlet capacities should fill this year barring ° "� ' ' `196'' A AY. x 1995 <br /> significantly below average precipitation during the coming <br /> months. <br /> Administrative/Management Concerns REPRESENTATIVE RESERVOIRS <br /> The primary focus of the basin's staff this time of year 260 South Platte Basin <br /> is compilation of diversion and stream flow records with the 240- <br /> intent of having them finished by the end of the calendar year. 220_ <br /> 200- <br /> un 160 //'\�\ <br /> n" 100 //\\� \ <br /> 40-.A <br /> 20 <br /> 4''' %/'' /-\\ %/'' ,'/;S K47 <br /> DII cc FlorsatOoth Eleven Mlle Choocman Jackson Barr Lake <br /> ZZ AV9 11/3C Content. I. j 11/30/95 Contents <br /> 3 <br />