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<br />r' r: ':1 ~ ~ 1
<br />,j -.1 ..,.., 'J ~"" ...
<br />
<br />FIGURE 1-1
<br />PRECIPITATION
<br />FROM OCTOBER 1976 THROUGH MARCH 1977
<br />AS A PERCENT OF AVERAGE
<br />
<br />I=~r==-~c--'5----=J i---i=:X=~-,t -
<br />'I J ..\~-'_..:-! ..... I~-:- TT ......['..g.~\
<br />.,29 ~1 6 111'1." r -.---, -,.- __ _-1\
<br />I ,." --~ '" -~;~1' r----f
<br />: --251._ 64 _'. .~4 .::-:.:s.... I -~ I __. -. \
<br />'-';'-'-'--::-::--:--:1'- ~:=,~::.,,- '~'''.,. i 2' 1 37 r" .
<br />--, "'-Zg -~ . . -~l k"' If I-~.-l""" I 110.
<br />I J . .-.1-----.,,-'.'-6 U-- '--,' I
<br />I_~---;---.J. 12,l--~-\ ','i e;':::'5f-~ j_~:d..
<br />: :w ::--:l-r....._- ~411 --; 6l--~...--I.-- -T _'~ \
<br />hc=:---,- ::..'" il-'. ,. MI/: 1_ -aiTr no' -=-- ,
<br />- --,='--' 3'3112"' ,-J1'"",,"~~ 3l-i.:, ~---, --'-'1 f L____
<br />I ./r-: _..: 2 . ,\ J12 --"----"' \, . \
<br />I r-'- . .. .. ., I l.-. 6Q . r-__
<br />-!'li' r-":' .--J -:;. .. - ri--d-!!-::r:.;,~:. ! _.:- L .5.!__ --,
<br />---~ _.28; 7_.4i 3,0, -"--'--'1"--'''--::;' -iI6 I
<br />f~.'-.--4CL.~:~~~~.-f' . . -=".,.\..;~;~. ---- jl~.JI~;-~.-;'--j
<br />.. --: - '"l\-o:tG~.....- . '.5~ i -- ~"'::":''!...'!'_.!.-'' 162 6'0'1
<br />~!.t..-.--.........,: 4-!' "- '........../'ria.~ I i I .
<br />I5 .. y ", '---)5 '''-"':::'-'~ --' 01 ~ --,-=?-..... ~ ---1
<br />~.____,~._.~ 4o.::.::.i---~(!j) __I L__.L__,.-
<br />I ._' 25-l:',:,,::. 42 ;_ _. ; 9I iIiI'Y' .. I......
<br />1 -. -.) "'241---!;.. ___M_')'l_ - 115 'iOii I -7'
<br />I flY -. ~ -.!:: 0'___ 3
<br />-~T'1'4'. ...-j .... / 1'- if6 9'1' I ~
<br />. ,
<br />e Soil C nseryatfofl Service COLORADO
<br />. . . _~ percen. of averag water ~.. ~ ~
<br />in sno Ipack..
<br />
<br />I.
<br />
<br />.. f______
<br />
<br />.....-.--
<br />
<br />...-- .--
<br />-- .--
<br />
<br />...=.::':':~::='=-
<br />
<br />--'--'~-_.-
<br />L-_ ~ ~_
<br />
<br />
<br />Source: Colorado State Climatol09ist
<br />
<br />Unquestionably, the summer rains of 1977 were helpful, but they did not
<br />completely allay the effects of the extremely dry winter which had preceded
<br />them. By October 1977, streamflows in many river basins remained near 50
<br />percent of normal and soil moisture levels in many areas remained low.
<br />Furthermore, the decreased streamwater inflow into reservoirs during the summer
<br />resulted in a reservoir depletion rate which more than doubled that of prior
<br />years. By October, reservoir storage, which had stood at near normal levels the
<br />preceding April, rested at levels 60 percent of normdi. Many reservoirs on the
<br />eastern and western slopes were dry. If the approachin9 winter season proved to
<br />
<br />15
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