OPNAV FORM 31 40-9 (REV. 3-63) 
WBAN 113 
DEPARTMENT OF THE NAVY 
SURFACE WEATHER OBSERVATIONS 
(Ship Station) 
U.S.5. 
STATION 
LATITUDE 
LONGITUDE 
DATE 
REL. 
TOTAL 
SKY 
COVER 
CLOUDS AND OBSCURING 
PHENOMENA 
TOTAL 
SEA 
WATER 
(1/10°) 
SEA WAVES 
SWELL WAVES 
’i IME 
(GMT) 
STATION 
PRESSURE 
DRY 
BULB 
WET 
BULB 
HUMID¬ 
ITY 
LOWEST LAYER 
SECOND LAYER 
SUMMA- 
TION 
TOTAL 
THIRD LAYER 
SUMMA- 
TION 
TOTAL 
FOURTH LAYER 
OPAQUE 
SKY 
DIRECTION 
PERIOD 
HEIGHT 
DIRECTION 
PERIOD 
HEIGHT 
(ISS.) 
(%) 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
COVER 
16 
17 
78 
79 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
37 
32 
33 
34 
35 
36 
37 
38 
39 
40 
00 
f\C, A/ f C 
01 
-- 
02 
03 
04 
05 
06 
— 
f 
07 
08 
09 
10 
11 
12 
» 
13 
14 
15 
16 
17 
18 
do5o5 
19 
t 
20 
21 
22 
23 
_ 
SYNOPTIC OBSERVATIONS 
YQL^L, 
97 
LqLoLoGG 
92 
00 
03 
06 
09 
12 
15 
18 
Nddff 
93 
21 
Do: 
VV wwW 
94 
PP 
(9 or 
10 ) 
95 
WINDS ARE OBTAINED AS FOLLOWS: 
/^MEASURED 
Q ESTIMATED 
PPPTT 
96 
DRYBULB 
(Deg. & 
lOths) 
97 
WET 
BULB 
(Deg. & 
lOths) 
98 
ICE 
99 
Check ice on 
Web Bulb 
NhC L h 
c M c H 
100 
D.Vjopp 
m 
8N s Ch,h f 
9 S p ipSp Sp 
102 
m 
TEMP, in shaded cols, are as checked below: 
01/10°C 
□ 1/10°F 
□°c 
□ °F 
SEA TEMP. 
(Deg. & 
lOths) 
i 04 
AIR-SEA 
TEMP. DIFF. 
(Deg. & 
1 Oths) 
105 
0T.T,T d T d 
WAVES 
SEA 
1 d w d w P w H w 
/DC: 
SWELL 
1 PwHw 
106 
WAVES 
SEA 
dwdy 
Pw Pw 
H W H V 
709 | 110 ' 111 
mmmm: 
) 
0f 
-4—-L 
ililii!::!: iifiiiiii 
:i: 
SWELL 
d w d u 
112 
P P 
' w 1 w 
113 
HwHy 
114 
t^rr. 
-p 
ON 
OFF 
STA. 
115 
D.V.app 
116 
m 
DEW 
POINT 
(Deg. & 
lOths) 
117 
WEATHER AND OBSTRUCTIONS TO VISION 
GG 
C 2 K D jre 
BERGS 
113 
779 
120 
727 
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 PRESSUR 
GALES (FORCE 8 
OR HIG 
HER - 6 
IN TROPICAL 
SEAS) 
DIRECTION 
& SPEED 
u/itjn 
BEGAN 
ENDED 
TIME 
(GMT) 
LAT. 
LONG. 
TIME 
(GMT) 
MILLIBARS 
TT INI/ 
DIRECTION 
& SPEED 
LAT. 
LONG. 
TIME 
(GMT) 
DIRECTION 8. 
SPEED 
LAT. 
LONG. 
TIME 
(GMT) 
DIRECTION & 
SPEED 
LAT. 
LONG. 
130 
737 
732 
133 
134 
735 
136 
737 
738 
739 
140 
141 
142 
143 
144 
745 
746 
TYPE 
BEGAN 
ENDED 
TIME 
LAT. 
LONG. 
TIME 
LAT. 
LONG. 
723 
724 
725 
726 
727 
728 
729 
NAVY-PEARL HARBOR 
