5 2-1 



LEGEND 



X EXTREME 

 O MEAN 



^ n +1 STANDARD DEVIATION 



X X 



R S 

 TIME 



Height 



N D J-H fl-J J-S 0-0 80-84 



17- 

 16- 

 15- 

 M- 

 13- 

 U- 



, 10- 

 8 9- 



s? «- 



7- 

 B- 

 5- 

 A- 

 3- 



2-f 



LEGEND 



O MEAN 



[| +1 STANDARD DEVIATION 



n s 



TIME 



N D J-f1 fl-J J-S 0-0 80-84 



Period 



Figure B27. 1980 through 1984 mean, standard deviation, and 



extreme H and T for gage 620 

 m p 



B56 



