TABLES 



111 



CODE TABLE 12 



Symbol h. — Height of base of lowest cloud {C'l or C«) above sea ' • 



Notes 



' For the purpose of the ^hip code used in this manual (FM 2IA), symbol *'h'* from WMO Code Table 43 has the meaning shown in this table. 



' When the sky is obscured by rain, snow. fog. smoke, or other phenomena so that cloud cannot be observed, "h" is coded as and "Nh" as 9: 

 otherwise, disregard the obscuring phenomena and code h as observed— e. g., use code figure 9 if no clouds are observable even though half the sky is 

 hidden by fog. 



J If the height of the cloud base cannot be reported owing to darkness or any reason not covered by Note 2 an X is reported for "h", 



CODE TABLE 13 



Symbol D,. — Skip's course {true) made good in 3 hours preceding ike time of observation 



CODE TABLE 14 



Symbol v,. — Ship's average speed made good during 3 hours preceding the time 



of observation 



