JANUARY, FEBRUARY, MARCH 



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1 440 OBSERVATIONS 

 26 AVERAGE NUMBER OF OC 

 CASIONS DURING THE SEA 

 SON WHEN WAVES ROSE 

 TO 3 FEET OR HIGHER. 



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T 









A 















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A 















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it \ 

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- 





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1 Ki 



>'J'T 





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•T-h-i- 





- 



40 60 80 100 120 140 160 180 200 220 240 260 280 

 DURATION (HOURS! 



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



40 60 80 100 120 140 160 180 200 220 240 260 2B0 300 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE WAVES (^3,6, 9, 12 FT.) 



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;impq| 



10 20 30 40 50 60 70 80 90 100 



APRIL, MAY, JUNE 





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RVATIONS 



RAGE NUMBER OF OG 



ONS DURING THE SEA- 



WHEN WAVES DE- 



SED IN HEIGHT BELOW 

 ET. 



: 



" 



- 









34 AVE 

 CAS 

 SOS 





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3 FE 















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a 

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» 





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1 1 1 



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1 1- 



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40 60 80 100 120 140 160 180 200 220 240 260 280 300 

 DURATION (HOURS! 



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





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- 









34 AVERAGE NUMBER OF OC- 



- 



130 



1 — 









CASIONS DURING THE SEA. 



— 





- 









SON WHEN WAVES ROSE 

 TO 3 FEET OR HIGHER. 



- 



_ 110 



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- 



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70 

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30 



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10 



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DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE WAVES (53,6, 9, 12 FT.) 



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10 20 30 40 50 60 70 80 90 100 



FIGURE 31 DIAMOND SHOALS, N. C. 35°05.3'N., 75°19.7'W. 



