TABLE 1 



Frequency Distribution of Characteristic Wave Heights Reported by U.S. Weather Bureau 



Ocean 

 Station 



Period 

 of Record 



Wave Heights,* feet 



Total 



Number of 



Observations 



<1.0 

 15.6-17.2 



1.0-2.5 

 17.2-18.9 



2.5-4.1 

 18.9-20.5 



4.1-5.7 

 20.5-22.1 



5.7-7.4 

 22.1-23.8 



7.4-9.0 

 23.8-25.4 



9.0-10.7 

 25.4-27.1 



10.7-12.3 

 27.1-28.7 



12.3-13.9 

 28.7-30.3 



13.9-15.6 

 >30.3 



A 



1/49- 6/54 



103 

 186 



891 

 175 



2106 

 151 



2403 

 134 



2111 

 80 



1468 

 47 



1118 

 66 



684 

 53 



382 

 41 



528 

 164 



12,891 



B 



1/49-12/54 



144 

 237 



939 

 264 



2601 

 286 



2507 

 166 



2484 

 113 



1800 

 125 



1469 

 120 



1005 

 62 



460 

 30 



634 

 101 



15,547 



C 



1/49-12/54 



105 

 248 



860 

 226 



2479 

 235 



2964 

 168 



2999 

 94 



2125 

 119 



1602 

 83 



1191 

 76 



556 

 17 



600 

 110 



16,857 



D 



1/49-12/54 



96 

 281 



797 

 217 



2861 

 231 



3452 

 124 



2887 

 74 



1911 

 81 



1471 

 55 



1011 

 35 



496 

 37 



622 

 65 



16,804 



E 



1/49-12/54 



280 

 108 



2232 

 85 



4629 

 71 



3371 

 38 



2569 

 29 



1335 

 33 



926 

 6 



559 

 2 



237 



260 

 7 



16,777 



H 



1/49- 6/54 



255 

 136 



1863 

 114 



3446 

 112 



2720 

 59 



2082 

 34 



1310 

 43 



1057 

 33 



654 

 11 



295 



5 



360 

 18 



14,607 



1 



1/47- 6/53 



243 

 667 



37 

 64 



1256 

 206 



2295 

 209 



1806 

 31 



1508 

 27 



901 

 187 



943 

 9 



565 

 6 



209 

 105 



11,274 



J 



1/47- 6/53 



272 

 684 



38 

 55 



1409 

 189 



2271 

 196 



1982 

 54 



1524 

 55 



877 

 196 



1028 

 27 



763 

 21 



270 

 105 



12,016 



K 



1/49-12/53 



144 

 116 



743 

 93 



1816 

 89 



2146 

 29 



2261 

 44 



1552 

 16 



955 

 26 



401 

 16 



506 

 26 



168 

 35 



11,182 



M 



1/49-12/53 



89 

 15 



1632 

 3 



3644 

 6 



3357 

 1 



2466 

 1 



1485 



876 



467 



217 



65 



14,324 



•Two wave height ranges are shown at the top of each column. Opposite each weather station, two entries appear in each 

 column. The top entries apply to the top wave height ranges, and the bottom entries apply to the bottom wave height ranges. 



TABLE 2 

 Frequency Distribution of Characteristic Wave Periods Reported by U.S. Weather Bureau 



Ocean 

 Station 



Period 

 of Record 



Wave Periods, seconds 



Total 



Number of 



Observations 



<5 



5-7 



7-9 



9-11 



11-13 



13-15 



15-U 



17-19 



19-21 



>21 



A 



1/49- 6/54 



2592 



5331 



2928 



1037 



274 



107 



49 



15 



4 



5 



12,342 



B 



1/49- 6/55 



3655 



6896 



3918 



1159 



297 



106 



19 





4 



5 



16,060 



C 



1/49- 6/55 



3192 



7346 



4721 



1620 



387 



106 



26 





17 



52 



17,471 



D 



1/49- 6/55 



3478 



8174 



4006 



1230 



307 



83 



14 





3 



14 



17,310 



E 



1/49- 6/55 



5573 



7091 



3009 



934 



151 



42 



20 





13 



62 



16,896 



H 



5/49- 6/54 



4864 



6113 



2103 



450 



58 



21 



1 





2 



32 



13,647 



1 



1/49-12/51 

 1/53-12/54 



1044 



4651 



5099 



1079 



181 



34 



5 





2 



47 



12,142 



J 



1/49-12/51 

 1/53-12/54 



802 



3866 



5431 



1289 



178 



17 



3 



6 



1 





11,593 



K 



6/49-12/53 



391 



2219 



4754 



3528 



814 



100 



43 



5 



46 



6 



11,906 



M 



1/49-12/53 



1826 



5477 



4374 



2051 



382 



69 



3 



1 



4 



1 



14,188 



