JANUARY, FEBRUARY, MARCH 



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5760 OBSERVATIONS 



9 AVERAGE NUMBER OF OC- 

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 6 FEET. 



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

 DURATION (HOURS) 



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





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130 



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 DURATION (HOURS) 



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



10 20 30 40 50 60 70 80 90 100 



APRIL, MAY, JUNE 



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582i OBSERVATIONS 



15 AVERAGE NUMBER OF OC- 

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 6 FEET. 





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 DURATION (HOURS) 

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15 AVERAGE NUMBER OF OC- 



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130 



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20 40 60 BO 100 120 140 160 180 200 220 240 260 280 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS (5 6, 9, 12 FT.) 



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10 20 30 40 50 60 70 80 90 100 



FIGURE 5G CSV "I" 59.0°N., 19.0°W. 



