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<br />. <br /> <br />. <br /> <br />. <br /> <br />T:.BLE 9. <br /> <br />~vornge monthly evaporation, <br /> <br />, ..vorClgo month~y ev"per~ti'on",'-==~~I <br />"kr?", ~t _C?1.l,ll1s, C.o}_O.'_i' <br />l.uchos j 111CnUS <br />---r-- <br /> <br />,---- <br /> <br />! <br />, <br />I <br />t <br /> <br />Months <br /> <br />Jr.;lUClry <br />February <br />Mnreh <br />.'.pril <br />r.:ay <br />June <br />July <br />_~ur;ust <br />Septombor <br />October <br />November <br />Do comber <br /> <br />5.11 <br />6,69 <br />8,16 <br />9.61 <br />8,31 <br />6.38 <br /> <br />l.,n <br />1,56 <br />2,62 <br />s:.35 <br />5.0D <br />5.86 <br />6,23 <br />5,63 <br />~, 56 <br />3.33 <br />1.6'~ <br />1,30 <br /> <br />21, Stnrm;:; of. r,e.cord.. 1lhe s-e'voro stoms ir: the SOlCth 1'1["[; co nivc~ b"'..,in <br /> <br />usually occur during the spring and sununor months vvi th .~ho groc.tost nU:.;cbur <br /> <br />ef stoms rocorded in May c.nd June, Tho ctorws having tho groo.test "ronl <br /> <br />distributions and irrCCdsitios nro o'ssocia.tod vrith similar synoptic situations, <br /> <br />:. high pressure cOllter of c ontinrmtnl polnr (eP) nir moves southeastward <br /> <br />across tho north-central stc.tos C'.s l~ lmC{ pressure center develops, or movos <br /> <br />i:J.to tho region south or southrJ'Ost of tho ;jo'J.th PID.ttG Ri'lcr basin. This <br /> <br />pressure system is fed primarily by mctritirlC trepicd (mT) air frem the Gulf <br /> <br />of Iv:exico and nuritimo polcer (mP) nir 'fro~:1 tho PCtoific OouC'.n. rrho'se taT nnd <br /> <br />r..P air massos 0.1"0 scpc.ro.tcd by c.n energotic oold front or 0.. stationary front. <br /> <br />Somotimes D. cold ocolusion extends on.st...northo2st from the: lOTi COl~';~,or. Heavy <br /> <br />prccipitc.tion ovor the Front Rango is caused by thu moist air being doflectod <br /> <br />up tho mountain slopus and ovor tho pl~ins aroas by an occlusion or ~ cold <br /> <br />front, <br /> <br />22. !:.. socond synoptic situQtion vrhich produces hoo.:';ty prcc.Lpitntion <br /> <br />along tho Fro~l.t Ronco occurs Yfhon an inflovl of very moist mT uir from the <br /> <br />Gulf of Mexico extends over most of tho Mississippi vollDY and t"LQ Great <br /> <br />Plai ns region as fc.r nort:, c.s Nobro.sk~ or occasiono.lly into tho Do.kotas, <br /> <br />The Toxe.s Panhc.ndlo ",cod the eastern boundc:,ry of Co1ero.do usually for]H Uw <br /> <br />wostorn limit of such an air mo.ss. <br /> <br />'Tho other major nil" mass involvod i8 <br /> <br />IlI!~15 <br /> <br />~~J~~k~:.~~':'~'-_:' -"-'j''''~:~~~~:k;*"",.Q.>-~i.'-;;'1iA.:_:-i". ,,::'t'-'-~"i';,,'~_":'j,:;;;:;~~k~;;:.,~:";;'6Ti:;"'~Wj,:~'.i;;'-fu~~-I,i~1;:'~~1>i::n::--..:6~';!;' ,;~;j-~oiH,~w~i~~ <br />