JULY, AUGUST, SEPTEMBER 



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- 1840 OBSERVATIONS 



24 AVERAGE NUMBER OF OC- 

 CASIONS DURING THE SEA- 

 SON WHEN WAVES DE- 

 CREASED IN HEIGHT BELOW 

 3 FEET- 



_ 



- 









- 

















- 



4 















~ 

















- 



7 \ 















~ 



- 



\ 

 \ 













- 







•■^^ 



'■ — .. 









- 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



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^^ 



20 40 60 60 100 120 140 160 1B0 200 220 240 260 

 DURATION (HOURS) 

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



" 



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— 

















- 









24 AVERAGE NUMBER OF OC- 



- 



130 



~ 









CASIONS DURING THE SEA- 

 SON WHEN WAVES ROSE 



— 



120 











TO 3 FEET OR HIGHER. 



— 



- 









1 



a 100 











- 



J 















- 



z '° 



o 



< 80 



1 















~ 



1 

















u 

















- 



U 70 

 S 



It 















~ 





















z 



J 















_ 



v° 



i 















~ 





I 















_ 



30 



-\ 















- 



20 



















\ 















_ 





-\tl..l^,-l4_ 



..a.L, 



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I 40 60 80 100 120 140 160 180 200 220 240 260 2 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS (g3,6, 9, 12 FT.) 



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^ 



10 20 30 40 50 60 70 80 90 100 



OaOBER, NOVEMBER, DECEMBER 





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1- 







ERVATIONS 



RAGE NUMBER OF OC- 

 ONS DURING THE SEA- 

 WHEN WAVES DE- 

 SED IN HEIGHT BELOW 

 ET. 



: 



° 



- 









33 AVE 

 CAS 

 SON 





'- 









3 FE 















- 



° 



-I 















- 





















- 



- 



7 \ 















- 











\ 



















° 



'l 1 1 



1 \T 





"i-^- 



^'U- 





±±4±±s 



_i.j_i.. 



5T^ 



20 40 60 



) 120 140 160 180 2C 

 DURATION (HOURS) 



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



240 260 280 300 





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1 1 1 



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













- 









33 AVERAGE NUMBER OF OC- 



- 



130 



"■ 









CASIONS DURING THE SEA- 

 SON WHEN WAVES ROSE 



— 



120 













— 



- 











1™ 



a 100 











- 



J 















- 



z '" 

 



T 















- 



5 



i 

















6 ,„ 

 o 



n 















- 





















2 '° 



40 



-I 















- 















- 



_ \ 















_ 



30 



T \ 















~ 





• 



<k 















,0 



=^Vt. 



■ — 

 ..1 1 1 



>H-^. 



^J 1 



1 1 1 



1 1 1 



1 1 1 



- 



I 40 60 80 100 120 140 160 180 200 220 240 260 2 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS (§3,6, 9, 12 FT.) 



|mi|,.„|,„IJTITTJTTTTJl 



"'^"l""l""r*l 



10 20 30 40 50 60 70 80 90 100 



