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<br />SUEr-Wi.: UF THr~ SEASUIIJ- <br /> <br />AJthough t..h..i:.:; i-\'..i~,t winter :38o.:30n lW..., 0110 of the driest on record <br /> <br /> <br />in tllG ~'Jc:~L, uinu ~.~ignificanL <.ulll five minor storm systems did <br /> <br /> <br />cIi\::c:-L the "";l'JllU ~jcsa re0ion durinG the four month period of oper- <br /> <br /> <br />aL-i.Olle', 1'hc58 ',GOnL were analy~cd on the basis of surface and <br /> <br /> <br />uj'pcr level \'\':.lthcr chCirt~, Glld on thc lJreeijJite,tion data recorded <br /> <br /> <br />~IL i:0111,CiIn HCc.;"l'voir D.nd Hc~:.l 1:.lj(eG, both 10eGted on Grand Mesa and <br />, <br /> <br />on reports fro1:1 sUlTow1ding 10cD.tions. <br /> <br />The l'L'L,t major ~nowfGll occurred between January 22-25th, vlhen a <br /> <br /> <br />[x'ont and \'Je:ll, upper level system produced about 0.1,4" in the tar- <br /> <br /> <br />Get ~u'ea. fulJ Ohing this di:_turbancc, hiCh pressure at the surface <br /> <br /> <br />\)c: i J t in over Iuaho '''lU Utah. Aloo a ridGe in the ujJper atmosphere <br /> <br /> <br />L'ecald~ c;tationary over the. Lest coast and effectively blocked <br /> <br /> <br />st')l;:I~ 1II0v..'.nc; in fre,: '~:w l'adfic during the fol101;ing four weeks. <br /> <br /> <br />1'h'; i1 '<lv-'Lc"L ]il'c;cij,itaLion or -che season fcU. during the February <br /> <br />2:~l1d throuGh ::jLh intel'vill dl"n Lhe uppel' level ridge finally moved <br /> <br /> <br />c,,,,L\:anl. 1'11i:: allo\:ec; a lilajor di:;turbance to move into the area <br /> <br /> <br />[roil. Lile \-I0~t allU linc;c;,c over COlorado, jJroducing more than 1.50" <br /> <br />OV'-';l"' -Lhe (;l'and N..:cau <br /> <br />]JurinG H.:1rcll, the ''1etteet month 01' the oper.:1tional seaGon, a series <br /> <br /> <br />of \:,)athcr ~Y' t em" affected lic"~crn Colorado, marking a return to a <br /> <br /> <br />CjoInet:!wt mOl'e normal winter circulation p.:1ttern.. . although precip- <br /> <br /> <br />itilLioll 1<.:1:' Ie:;" thQl1 .:1vu]'.:1Gc. 0.icnifjc~urL :;110\'1 occurred between the <br /> <br /> <br />2nd WId ~th, loth =d liLh, 16th wld 10th, the 21st, the 25th, and <br /> <br />2Sth. <br /> <br />- ) -, <br />