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<br />Flatiron P1:ll11fJ/Ccl~e.rat6r Unit 2 ...8.J il161'~rabk fur abem 9 n16nth.J dtl, 1e the e.xl'loJian. Tltt: <br />only n~eth5d of aLerting Hater to Camr Lake L~ tftrot1gh Flatiffln Pl:llll:rh'CcneIM61 Unit J. <br />Therefore, fie Hattr ...B:3l'tl:111I'Cei to Carter Lm.:;e dtlfing thc 9 month 5tttagc. PtlIlll'ing leJtJ:llled <br />t6 Cart~r Lake: on SCl'tenlbcl 4, 1996, follening the rebtlild of Flatirofi Ptl111p/CeocfMof Unit J. <br />A total of about 45,000 acre-feet of water was spilled at Lake Granby dtIe t3 :lhltla3dll. 3f tIK; <br />1'''0011' m~ei th" high rt1118ff conaitian. <br /> <br />February temperatures over the Project were varied. February precipitation was ffltleh !tb3.e <br />a. CIlI~ ranging from +4& percent of average for the Poudre watershed to ~ percent of average <br />for the Green Mountain watershed. March 1 snowpack e3nttntlea t3 be high ranging from H+ <br />percent for the Poudre watershed to ~ percent for the St. Vrain watershed. <br /> <br />March was :fuir!y ~ piGM nith. rain, ~.-ct 3ne ...., J6nle 3tl:111't) ...-eathcr, ~\8:rfll d4) J, cold cia) J, tmd. <br />plent) 3f "incl. Precipitation for March was varied with the Green Mountain watershed at 86 <br />percent of average and the Poudre watershed at f69 percent of average. Snowpack water content <br />averaged f540 percent over the Project watersheds for April 1. On April 1. Green Mountain <br />recorded ~ inches; Willow Creek recorded H:6 inches; Lake Granby recorded H:& inches; <br />and St. Vrain recorded H:5 inches. respectively. Percent of average ranged from ill percent at <br />the Willow Creek watershed to +86 percent for the St. V rain watershed. Temperatures over the <br />Project were near aiemge. for March, although Dca.,r, Cole:raao 3et tl r,cetd Ien tCft11'eraRirG <br />onMIlI'Ch.:253f 2or. <br /> <br />The hi~ lf6.Lage. eonditi6ft Me! high rereeft3tea. Itm6ff, MOftg .,tith the imtbil~ to eicli~ter nater <br />t6 Camr Lak", re.Jmtt:d. eM!) bYl'tt33 rekB:3e.J fffln.L LftkG c~ Mlti Willan' Creck Re.Jefioir t6 <br />reeit1~~ the ft1116tlrlt JpiHca. in Jttne and htl). The y~yater y,ar 1996 bY1'ft331Jl'iIl nOlu Lal<<. Clam" <br />totakci. 72,809 acn: fect and 19,74~ ocrc fect :fraftl ~Ni118n CIc,k Re.Je.n.air. <br /> <br />April weather usually produces significant storm systems that move through the Project area, but <br />this April V.lI:l .._ ltftd ary. Precipitation was mlleh belen a.el'llge over the Project during <br />April exeept fer Creel\. M6t1l1.aill., ranging from 50! percent of average for Willow Creek and <br />Granby watersheds to +HI percent of average for the Green Mountain watershed. Thi.:l aeerell:led <br />the April 1 snowpack 16 144 percent of average for the Project area Temperatures were varied <br />for April and. [oct CO~J, CololMo Je.t 11IC(:;Old high tc.mpcJ.~tu1" for JA.;pri!24 at 84 OF. <br /> <br />May was a dry month on the west slope and dry on the east slope _til the lll:lt ....eek 3f Ms)'. <br />Precipitation ranged from R percent of average for Willow Creek and Granby watersheds to ~ <br />percent of average for the Lake Estes and St. Vrain watersheds. Temperatures for May were <br />ge.neraUy aeo~, lhemgc. RcGOld high tGl'llpGlatmGJ n~l"(. Jet foI Den,,'1 on J\.lay 15 at 890P md <br />~{tt) 16 at 93 or ltftd for r on Collin,] on Pvllry 164t 88 or. <br /> <br />June brought a eembmatiell. af !tb3.e a.t:lagt: temperatures and varied precipitation. which <br />resulted in the October-June precipitation at f4.4 percent of average for the Project. July <br />precipitation was varied and August precipitation was be13..' a. erage for all Project watersheds. <br />Green Mountain Reservoir spilled 2e,:290 acre-feet in June and 5;338 acre-feet in July due to the <br /> <br />filename: CBTA0P98.DFT <br /> <br />2 <br /> <br />Preliminary Working Draft July 8.1999 <br />