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<br />~ <br /> <br />SOUTH PLATTE BASIN <br /> <br />Aug-99 <br /> <br />.. Basinwide Conditions Assessment <br />The SWSI value of 3.0 indicates that for July the <br />basin water supplies were above normal. Reservoir storage, <br />the major component in this basin in computing the SWSI <br />value, was 110% of normal as of the end of July. Cumulative <br />storage in the major plains reservoirs: Julesburg, North <br />Sterling, and Prewitt, is at 57% of capacity . Cumulative <br />storage in the major upper-basin reservoirs: Cheesman, <br />Eleven Mile, Spinney, and Antero, is at 101% of capacity. <br />Flow at the gaging station South Platte River near Kersey <br />was 728 cfs, as compared to the long-term average of 1,098 <br />cfs. <br />Flows in the South Platte and its tributaries were <br />above average throughout the basin during July. There was <br />no call at all on the South Platte the first eight days of July, <br />which is fairly unusual. The most senior call during the <br />month was a Burlington bypass to the Westem Canal, with <br />an 11-20-1885 date. This is a very junior call for this time of <br />year and reflects the excellent river conditions. Widespread <br />rain storms toward the end of the month removed the call <br />completely. <br /> <br />Outlook <br />Based on the flow conditions, there will not be any <br />shortages this summer and storage should be excellent <br />going into next. year. Continued wet conditions could cause <br />problems for farmers in accessing their fields. <br /> <br />s::uTH RATTEIlASINSWll HSItRf <br /> <br />.... <br />~2 <br /> <br /> <br />w <br />::>, <br />~ <br />~o <br />~ <br /> <br />>- -, <br />0: <br />o <br /> <br />-2 <br /> <br />-3 <br /> <br />-4 <br />.-..lIO_________ <br />M:MH/Y6'\R <br /> <br />SOOTH PLATTE RVER foR KERSEY, FLOW BY WP.TER YEAR <br /> <br />3.000.lXXl <br /> <br /> --- <br /> / <br /> / <br /> / <br /> ) ----' <br /> ~ / <br />./ ./ - <br /> c- I <br /> I <br /> <br />3l 2,500,lXXl <br />... <br /> <br />~ 2,lXXl,lXXl <br /> <br />~ <br />::i 1,500,lXXl <br />2: <br />S <br />::> 1,lXXl,lXXl <br />::0 <br />:::0 <br />U <br /> <br />5OO.lXXl <br /> <br />o <br />Q:lI'tlYDec.l!wlFebMird'lApiMay.u-.e.kAyh.gSepl <br /> <br />...... V'tET (1983) <br /> <br />. -+--l:RV(1964} <br /> <br />-o.-AVG <br /> <br />.......1999 <br /> <br />F&RlSENOOI\ER:SERORl <br /> <br />3IllID <br /> <br /> <br />ZIlCID <br /> <br />~= <br />r; <br />.. <br />oj <br />"'1!IllID <br />~ <br />f/l <br />.. <br />~1JllDl <br />::> <br /> <br />!IIlIIl <br /> <br />lJIa1 <br /> <br />_ BMlMle Ommn <br /> <br />Jld8n <br /> <br />IBrlae <br /> <br />lAg 7/31 0rBa <br /> <br />1713Wl0rBa <br /> <br /> <br />3 <br />