JANUARY, FEBRUARY, MARCH 



J 1 1 



' 1 1 



' 1 1 



1 1 1 



1 1 1 1 1 1 1 1 1 1 







RVATIONS 



)AGE NUMBER OF OC- 



ONS DURING THE SEA- 



WHEN WAVES DE- 



5ED IN HEIGHT BEtOW 

 ET. 



- 



- 









32 AVE 

 CAS 

 SON 



- 









3 FE 











- 



J 

















1 















- 



A 



-V 















- 



1 \ 



'••••... 













- 



"l 1 1 



1 l> 



■^^T 



7^ — - 



----- 



^_ 





_ 



..1 1 1 



1 1 i' 



"Vtv 



•l'\.>. 



.*.U|., 



±1a 



10 100 120 IdO 160 180 200 220 240 260 280 300 

 DURATION (HOURS) 



OF FAVORABLE SEAS (<3, 6, 9, 12 FT.) 



_' 1 ' 



1 1 1 



1 1 1 



1 1 1 



1 1 1 1 1 1 1 1 1 1 1 1 





M40 OBSERVATIONS 



32 AVERAGE NUMBER OF OC- 

 CASIONS DURING THE SEA- 

 SON V/HEN WAVES ROSE 

 TO 3 FEET OR HIGHER. 



- 



- 









- 

















- 



-I 















- 



7\ 















- 



'. \ 

 -. \ 

 • \ 















- 



-\ \ 



\ 

 \ 













- 









7"rr- 



-T-K. 



-+.U 



1 1 1 



1 



20 40 60 



3 120 140 160 180 200 220 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS §3 6, 9, 1 2 FT.) 



260 280 300 



10 20 30 40 50 60 70 80 90 100 



APRIL, MAY, JUNE 



J 1 ' 



1 1 1 



1 1 1 



! 1 1 



1 1 1 1 1 1 1 1 1 1 1 1 





,^T.,^l..C 





- 









39 AVERAGE NUMBER OF OC- 



- 



— 









CASIONS DURING THE SEA- 



— 



- 









SON WHEN WAVES DE- 

 CREASED IN HEIGHT BELOW 

 3 FEET. 



- 



- 

















— 



- 















- 



4 















- 



:\ 















~ 



\ 















- 



\ 

 - \ 















- 



\ 

















— \ — 

















^ \ 















- 



"*■•• ^ 



















"i 1 1 



'^'.'•' 











u-Y-'-' 



jt^'.i^ 



^ 



1 rr 



' ri-h. 



=.kJ_V_ 



1 1 1 



1 M 



n 1 



-r 



40 60 80 100 120 140 160 180 200 220 240 26 

 DURATION (HOURS) 



PERSISTENCE OF FAVORABLE SEAS (<3, 6, 9, 12 FT.) 



J 1 ' 



1 1 1 



1 i 1 



1 1 ' 



1 1 1 1 1 1 1 1 1 1 1 1 g 





ER OF OC 

 G THE SEA 

 AVES ROSE 

 -IIGHER. 



- 



- 









39 AVERAGE NUM 

 CASION5 DURIN 

 SON WHEN W 



- 

















- 



-1 















- 

















- 

















— 



\ 



y 













^. 



• d .1 1 



'Tr^- 



^.4,L. 



.1 1 1 



1 1 1 



1 1 1 



- 



I 40 60 80 100 120 140 160 180 200 220 240 2. 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS (^3,6, 9, 12 



l'"r"'i""r"r"l"'T"T"'i""i" 



O 10 20 30 40 50 60 70 80 90 100 



A 



FIGURE 3H CHESAPEAKE, VA. 36°58.7'N., 75°42.2'W. 



