Figure 1 



Monthly Volumes at State Line, Tongue River 

 1929-1960 reconstituted flows, 1961-1988 measured flows 



100000 

 90000 

 80000 



=■ 70000 



c 

 o 



S 



60000- 



>• 50000 



40000 



30000 



20000- 



10000 



Row* axc««d«d 50% ol rh« itna 

 Flows 8xc0e<)ed 80% ol ih« ims 



zi.r. 



*••♦»••• i- 



■:::i:::::tT:~::i. 

 -t — ^1 ■<■ 



JZ 



rrr: 



rtntr 



g 



2 



IS 



5- 



o 



Z 



Month 



Figure 2 

 Monthly VolurriB Differences Between State Line and Dam, 1961-1988, Tongue River 



14 



E 

 ■ 



60000 



50000 



4OO00 



30000 - 



-40000 



B Majr ro*ease<J/min stored 

 I Average reiease<]/siored 

 Max siored/min released 

 Negaime values mean released waier 

 Positive values mean stored water 







z 



♦ O ■ 



g:— 



I ^ 



a. 



< 



Month 



2 



E 



I 



