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<br />000914 <br /> <br />~)J <br /> <br />Upper Green 23, 0 inches Upper Colorado 20,7 inches <br />Uinta 20, 5 inches Grand Mesa 24. 2 inches <br />Yampa 23. 5 inches Gunnison 21.4 inches <br />White 23. 4 inches San Juan 24, 1 inches <br /> All areas 22, 3 inches <br /> <br />~~~ <br />~~~ <br />i1.~,.-.... <br />~J~oll <br />f~ <br /> <br />~;.'t.,<-:~ <br /> <br /> <br />I <br />~f::~~; <br />~fii;~i <br />I <br /> <br />>:}"~::.; <br />t.$':::/..,.;'$: <br />!l1J:* <br />l!\~,,%. <br /> <br />Winter precipitation on the 14, 200 square miles .of target areas <br />, <br /> <br />averaged 22. 3 inches determined from the isohyetals of Figure 5: <br /> <br />Monthly precipitation in the Basin is rather uniformly distributed <br />throughout the year with no pronounced seasonal variations, The <br />long-term records of 30 weather stations were analyzed by Richard A. <br />Schleusener and Loren W. Crow22/ in three elevation groupings, <br />Table 1 and Figure 6 summarize these data illustrating the fairly <br />uniform monthly distribution and the increase of precipitation with <br /> <br />elevation, <br /> <br /> <br />October precipitation at the high-level stations averaged 13 percent <br /> <br /> <br />of the October through April seasonal total. Assuming the monthly <br /> <br />" <br /> <br />precipitation distribution within the target areas is similar-to the <br /> <br /> <br />high-level stations, the average precipitation during the November <br /> <br /> <br />through April seeding season is 19,4 inches. <br /> <br /> <br />22,3 inches - (13% x 22,3 in.) = 19.4 inches <br /> <br />22/Schleusener and Crow, p 3. <br /> <br />~;.~~ <br />~<;~ <br />~$?;~ <br />~~t:~ <br />~~~~ <br />~~ <br />;:'?>l./- <br />~~}"k:::: <br /> <br />" <br /> <br />17 <br /> <br />{:~:<-~; <br />. ".-.-.:::;.' <br />).i.::~::':'::;::: <br />~1):F--; <br />~:~~;:"--".'~ <br />,..)~t:;.: <br /> <br />:~?~,,::--:". <br />,;~~;;.~.:~.\:.. <br />