OPNAV FORM 31 40-9 (REV. 3-63) 
WBAH I IB 
DEPARTMENT OF THE NAVY 
SURFACE WEATHER OBSERVATIONS 
(Ship Station) 
/ 
u.s.s. 
f | jk ) 
/ 1 
STATION 
LATITUDE 
LONGITUDE 
DATE 
STATION 
PRESSURE 
(INS.) 
REL. 
TOTAL 
SKY 
COVER 
CLOUDS AND OBSCURING 
PHENOMENA 
TOTAL 
SEA 
WATER 
(1/10°) 
SEA WAVES 
SWELL WAVES 
TIME 
(GMT) 
DRY 
BULB 
we r 
BULB 
HUMID¬ 
ITY 
LOWEST LAYER 
SECOND LAYER 
SUMMA- 
TION 
TOTAL 
THIRD LAYER 
SUMMA- 
TION 
TOTAL 
FOURTH LAYER 
OPAQUE 
SKY 
DIRECTION 
DIRECTION 
(%) 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
COVER 
PERIOD 
HEIGHT 
PERIOD 
HEIGHT 
16 
17 
18 
” 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
37 
32 
33 
34 
35 
36 
37 
38 
39 
40 
00 
■ 
7 t 
01 
02 
03 
04 
05 
06 
i . 
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07 
08 
09 
10 
11 
12 
13 
14 
15 
16 
17 
18 
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19 
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SYNOPTIC OBSERVATIONS 
NAVY-PEARL HARBOR 
