Code Table IE 



Symbols DD — Wind direction 

 (Direction from which wind is blowing) 



Record and code directions to 16 points, 

 thereto. 



Use only directions as shown in black-faced type and code numbers corresponding 



Note.— When unusual squalliness or gustiness has occurred during the hour preceding the observation, the observer will add 33 

 to the number for wind direction ( DD ), as given in the above table. When a squall or line squall ( hgne de grain ) has occuried m the 

 hour preceding the observation, the observer will add 67 to the wind direction number given m the table. Example, i or west- 

 southwest wind the observer will use the number 22 from the table, but if unusual gustmess I oi • squalliness has occurred he will ^ 

 33 and encipher 55 for the wind direction (DD), and if a line squall has occurred he will add 67 and encipher 89 as the wind direc- 

 tion (DD). 



Code Table IV 



Symbol d — Direction from which swell is moving 

 Symbol d s — Direction tovjard which ship is moving 



99083°— 30- 



