OPNAV FORM 3l'40-9 (REV. 3-63) 
WBAN 11 B 
DEPARTMENT OF THE NAVY 
SURFACE WEATHER OBSERVATIONS 
(Ship Station) 
u.s.s. 
STATION 
LATITUDE 
LONGITUDE 
DATE 
■J i 
> 7 
VIME 
(GMT) 
STATION 
PRESSURE 
(INS.) 
DRY 
BULB 
WET 
BULB 
REL. 
HUMID¬ 
ITY 
(%) 
TOTAL 
SKY 
COVER 
CLOUDS AND OBSCURING PHENOMENA 
TOTAL 
OPAQUE 
SKY 
COVER 
SEA 
WATER 
(1/10°) 
SEA WAVES 
DIRECTION 
PERIOD 
HEIGHT 
SWELL WAVES 
DIRECTION 
PERIOD 
HEIGHT 
LOWEST LAYER 
SECOND LAYER 
SUMMA- 
TION 
TOTAL 
THIRD LAYER 
SUMMA- 
TION 
TOTAL 
FOURTH LAYER 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE 8 . 
DIR. 
HEIGHT 
16 
17 
IB 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
00 
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03 
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05 
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07 
08 
09 
10 
11 
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13 
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16 
17 
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19 
20 
21 
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SYNOPTIC OBSERVATIONS 
YQLaLgL, 
91 
92 
93 
94 
95 
96 
97 
98 
99 
100 
rot 
302 
iii too 
i04 
105 
m 
... m :. 
01—q LqGG 
Nddff 
VVwwW 
PP 
(9 or 
10 ) 
PPPTT 
DRYBULB 
(Deg. & 
lOths) 
WET 
BULB 
(Deg. & 
lOths) 
ICE 
NhC L h 
c M c H 
D,V,app 
SNsCh.h, 
^SpSpSpSp 
SEA TEMP. 
(Deg. & 
lOths) 
AIR.SEA 
TEMP. DIFF. 
(Deg. & 
lOths) 
ffl-.T.TjTd 
WAVES 
SEA 
ld w d w P w H w 
SWELL 
ld w d w P w H w 
WAVES 
SEA 
dwd ¥ 
PwPw 
H W H V 
109 i no 1 in 
. 1 . 4 - ,~ 
SWELL 
d w d w 
P P 
r w r w 
112 i 113 
HwH v 
114 
ON 
OFF 
STA. 
115 
D.V.app 
116 
DEW 
POINT 
(Deg. & 
lOths) 
117 
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- V ~ 
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fk 
03 
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. 3 06 
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12 
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15 
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WINDS ARE OBTAINED AS FOLLOWS: 
Check ice on 
TEMP, in shaded cols, are as checked below: 
WEATHER AND OBSTRUCTIONS TO VISION 
0 MEASURED 
□ ESTIMATED 
Web Bulb 
01/1O°C 
a_ 
0 
0 
□ 
U 
0 
□ 
□ °F 
GG 
C 2 KDjre 
BERGS 
118 
119 
120 
121 
00 
03 
06 
09 
12 
15 
18 
21 
REMARKS, NOTES AND MISCELLANEOUS PHENOMENA 
Col. 122 
SUNRISE 
SUNSET 
SUMMARY OF DAY (MIDNIGHT TO MIDNIGHT) 
MAXIMUM WIND 
LOWEST PRESSURE 
GALES (FORCE 8 OR HIG 
HER - 6 IN TROPICAL SEAS) 
TIME 
(GMT) 
DIRECTION 
8 , SPEED 
LAT. 
LONG. 
l 
WIND 
DIRECTION 
& SPEED 
LAT. 
LONG. 
BEGAN 
ENDED 
TIME 
(GMT) 
rv.'LLIBARS 
TIME 
(GMT) 
DIRECTION & 
SPEED 
LAT. 
LONG. 
TIME 
(GMT) 
DIRECTION 8 . 
SPEED 
LAT. 
LONG. 
130 
131 
132 
133 
134 
135 
136 
137 
138 
139 
140 
141 
142 
143 
144 
145 
146 
TYPE 
BEGAN 
ENDED 
TIME 
LAT. 
LONG. 
TIME 
LAT. 
LONG. 
123 
124 
125 
126 
127 
128 
129 
NAVY-PEARL HARBOR 
