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<br />SOUTH PLA TIE BASIN May.Q4 <br /> <br />Basinwide Conditions Assessment <br />The SWSJ value of 0.5 IndIcates that for April the <br />basin water supplies were near normal. Reservoir storage. <br />the major component in this baSin in computing the SWSI <br />value, was 103% of normal as of the end of April. <br />Cumulative storage in the major plains reservoirs: Julesberg. <br />North Sterling. and Prewitt. is at 76% of capacity_ <br />Cumulative storage in the major upper.basin reservoirs <br />Cheesman. Eleven Mile. Spinney. and Antero is at 66% of <br />capacity The Natural Resources Conservation Service <br />reports that May 1 snowpack is 65% of normal. Flow at the <br />gaging station South Platte River near Kersey was 432 cfs. <br />as compared to the long-term average of 1.062 cfs Flow at <br />the Colorado/Nebraska state line averaged 27 cfs. <br />Precipitation events in Aprtl improved the snowpack <br />from the beginning of the month. but snowpack still lagged <br />significantly behind average at the end of the month. Even <br />with the storms, there was a direct flow call during the whole <br />month of April. except for a few days directly after storms <br />This is in contrast to last year when there was a storage call <br />all during Aprrl. This year's Sltuation was more similar to <br />2002 when there was also a direct flow call the whole month SOJn< F\.oto.TTE llM:1l ". ><J:1lSEY FI..O.'.' BY .......rEJl '<UR <br />of ApriL <br /> <br />Outlook <br />During short periodS after storms. the nver call <br />moved to a more junior storage call. However. with many <br />reservoirs not full. the number of days of storage was not <br />near enough to fill the remaining capacity of these reservoirs. <br />either on the main stem of the South Platte or on the <br />tributaries Without significant precipitation In May and June. <br />these reservoirs will not fill this year. This will leave users. <br />especially agricultural users, extremely vulnerable to having <br />inadequate supplies late In the summer. <br /> <br />Public Use Impacts <br />Although municipal users have a greater safety <br />factor than irrigation interests, municipal users are concerned <br />about the adequacy of their water supplies_ In response, <br />most munICipal suppliers have already implemented <br />restrictions on use Similar to those that have existed the last <br />few years_ <br /> <br /> -- <br />., <br />-I <br />:'1 <br />1'111. <br />i <br />'I <br />'I <br />- - - - - - - - - - <br /> -.- <br /> <br /> <br />l..oo~. <br /> <br />'200COl. <br /> <br />, <br /> <br />I <br />1 'IXXlOOlf <br />~ OM. <br />" <br />. <br />> <br />, <br />o <br />> <br />, <br />o <br /> <br />; <br />T- , <br /> <br />~=, <br /> <br />, <br />/' <br /> <br />~=, <br /> <br />~, <br />--------;--?"'~ <br />-. ' <br />-::---- t . <br /> <br />. <br />. <br /> <br />A <br />_~t"-~ -... <br />___=t- _ ~--=:::::: 4 <br />t~. <br />Q- - <br />~ - <br /> <br />~= <br /> <br />.' <br />. <br /> <br />~ <br /> <br />~ <br /> <br />- <br /> <br />- .... ... <br /> <br />-<>-'^El1'!I:UI <br /> <br />.llR'f(W;"" <br /> <br />....~ .2\X)oI <br /> <br />Ill_Sfm...1l'VE....SEOJI,QRS <br /> <br />~~ <br /> <br />101.... <br /> <br /> <br />..~. <br /> <br />i..~, <br /> <br /> <br />. <br />i <br />. <br />! "Ie"" ~ <br />, <br /> <br />-_I <br /> <br />.n <br /> <br />. <br /> <br />~ _ __ 00-- .-- _....... <br /> <br />....'lI...'30~ <br /> <br />.'!JQO&~ <br /> <br />J <br />