Laserfiche WebLink
SOUTH PLATTE BASIN March, 1999 <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 1.7 indicates that for February the SOUTH PLATTE RIVER BASIN <br /> basin water supplies were slightly above normal. Reservoir 5 '"'Water Supply' History <br /> storage, the major component in this basin in computing the 4 <br /> SWSI value, was 97% of normal as of the end of February. W 1 11. 1 111 <br /> I, Oil 111,1 I,.I,I I 1,l <br /> Storage in the major plains reservoirs: Julesburg, North • I ul, pill IIIII 111'IIILI I I it <br /> I 1 I IIIII IIII IIIII 111 11111111 IIII <br /> Sterling, and Prewitt, increased by 15,440 acre-feet duringI II. 1, I I+ill',1 WI IIIII I11 Illlllil'1 iI111111 <br /> 2 II 1111 I III 1 1 1111 II III MI IIIIII111,11111111i I IIIIIII 1{I <br /> p 111 IIlll, IIIIII 1,10M 11 III IIIII IIIIIIi111 111111111 1 11111111 III <br /> February and is at 90% of capacity. Storage in the major , 1111 1111111 1111111 ,111111111 II III 11111 1111111111 11111111'111111111 11 <br /> 1111 IIIIIII (IIIIIII 111111111111 III 11111111 111111111111111111,1111111111 11 <br /> upper basin reservoirs: Cheesman, Eleven Mile, Spinney, and 0 1 1111f11 111 midi1111111li 1111111111 II: J11 ,1111111 1111111111 1111111111 111111111 11 <br /> Antero,increased by 1,438 acre-feet and is at 80%of capacity. I;,`; ;' <br /> The Natural Resources Conservation Service reports that <br /> March 1 snowpack is 86%of normal. The mean daily flow of _2 <br /> the South Platte River at the Kersey gage was 737 cfs, as <br /> compared to the long term average of 848 cfs. Flow at the -4 <br /> JAN90 JAN91 JAN92 JAN93 JAN94 JAMS JAN96 JAN97 JAN99 JAN99 <br /> Colorado/Nebraska state line averaged 732 cfs. <br /> Diversions in February continued primarily for <br /> storage, ground water recharge, and direct municipal use. <br /> Flow was average or slightly above average on the mainstem <br /> and most tributaries. Most reservoirs either maintained at or <br /> filled to their winter storage levels. The only call on the SOUTH PLATTE RIVER NR. KERSEY <br /> South Platte was for direct flow uses for Denver. 450 FLOW BY WATER YEAR <br /> 400 <br /> Outlook <br /> 350 <br /> The snowpack in the mountains remains slightly <br /> below average with less snow towards the southern parts of + 300 <br /> the basin. This does create some concern that flows in the 250 <br /> upper portion of the South Platte drainage may be below g 200 <br /> normal. The final snowpack level will be affected by the F" <br /> 150 <br /> snowfall the next two months,generally the months of highest <br /> precipitation in the basin. '00 <br /> 50 <br /> 50 fr <br /> Administrative/Management Concerns 0 <br /> Oct Jan Feb March <br /> None. <br /> MONTH <br /> 0 WET(1983) 0 DRY C1954) A AVG x 1999 <br /> Public Use Impacts <br /> None. <br /> Representative Reservoirs <br /> South Platte Basin <br /> 240 <br /> 220-r-27\ <br /> 200 <br /> 140 / \ <br /> $q 120 /„\\ <br /> 100 <br /> BO <br /> 40 <br /> / \ / \ %3,7 <br /> Dillon Horeetooth Eleven Mlle Chessmen Jackson Bern Lake <br /> ® AVp. 2/2e Contents ® 2/2Sf99 contents <br /> 3 <br />