4 
OPNAV FORM 31 40-9 (REV. 3-63) 
WBAN 11a 
DEPARTMENT OF THE NAVY 
SURFACE WEATHER OBSERVATIONS 
(Ship Station) 
U.S.S. 
STATION 
LATITUDE 
LONGITUDE 
DATE 
3i rri A Ac m i c iL.q 
11 
REL. 
HUMID¬ 
ITY 
CLOUDS AND OBSCURING 
PHENOMENA 
TOTAL 
SEA 
WATER 
(1/10°) 
SEA WAVES 
SWELL WAVES 
•| IME 
(GMT) 
STATION 
PRESSURE 
DRY 
BULB 
WET 
BULB 
TOTAL 
SKY 
COVER 
LOWEST LAYER 
SECOND LAYER 
SUMMA- 
TION 
TOTAL 
THIRD LAYER 
SUMMA- 
TION 
TOTAL 
FOURTH LAYER 
OPAQUE 
SKY 
DIRECTION 
PERIOD 
HEIGHT 
DIRECTION 
PERIOD 
HEIGHT 
(INS.) 
(%) 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
AMT. 
TYPE & 
DIR. 
HEIGHT 
COVER 
16 1 
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 
ll 7:t2)| 
*3.5 
7k. O 
7/ 
3 
9 
Ct> 
2 o 
o 
3 
<? 
3 
© 
3 
mitt? 
01 
— 
/ 
02 
03 
04 
05 
06 
2573 d 
15.0 
1*1 
i| 
C W 
4 ,Xo 
6 
O 
<4 
o 
4 
07 
08 
09 
10 
11 
«r 
12 
mu 
itk 
75.3 
T 
T~ 
Co 
10 
5 
AC 
o 
S' 
O 
? 
Ye’. A 
illdSOi 
13 
14 
15 
16 
17 
18 
3fi. 
n o 
El* l 
Bo 
X 
C. ^ 
20 
c< 
/ 
6? 
o 
€& 
o 
2. 
o 
O / }&b0 4l j 
19 
20 
21 
22 
23 
- 
SYNOPTIC OBSERVATIONS 
YQL^U, 
97 
Lgl_oLoGG 
92 
00 
03 
UHO SSd 
bb htjt) bSd 
( Jq0 HQ_ 5 5 o 
06 
09 
12 
15 
18 
21 
Nddff 
93 
?M/5 
Uv 
WwwW 
94 
'/m 
pp 
(9 or 
10) 
95 
kjnfiuji 
a#>21 
m 
WINDS ARE OBTAINED AS FOLLOWS: 
Si*<E 
EASURED 
Q ESTIMATED 
PPPTT 
DRY BULB 
(Deg. & 
lOths) 
96 
& 
97 
mm 
mm 
mi 
WET 
BULB 
(Deg. & 
lOths) 
98 
MM 
m 
MtL 
ICE 
NhC L h 
c mCh 
99 
mt>b 
Check ice on 
Web Bulb 
100 
woo meg p'fiO 
2)5 7o 
ItSoi 
D*V f app 
m 
8010$ 
oo no 
8N s Ch,h t 
9SpSpSpSp 
m 
mu 
g 
A 
TEMP, in shaded cols, are as checked below: 
[g^/10 o C □1/10°F 
□ °C 
□ °F 
SEA TEMP. 
(Deg. & 
1 Oihs) 
104 
Mm 
ill 
U4 
'Mu J 
AIR-SEA 
TEMP. DIFF. 
(Deg. & 
1 Oths) 
105 
n om 
m 
-03 
0T,T.TjTj 
6m 
os ns 
oSliX 
WAVES 
SEA 
1 d w d w P w H v 
id^Z 
i tin 
toil* 
SWELL 
1 d w d w P w H w 
WAVES 
SEA 
dw^W P W Pw 
H W H V 
109 
m 
m 
m 
110 ' 111 
MM 
0^1 Ql 
mm 
J L 
SWELL 
d w d„ 
P P 
' w 1 w 
112 | 113 
H W H V 
114 
ml 
ili 
mmm 
iliiiiiiliii! 
sir 
M^iL 
mm 
vm. I 
I1.. 
it ; i;:i l! 
ON 
OFF 
STA. 
775 
mx 
D.V.app 
116 
DEW 
POINT 
(Deg. & 
lOths) 
117 
me? 
EM 
Z34 
MM 
WEATHER AND OBSTRUCTIONS TO VISION 
GG 
C 2 KDjre 
BERGS 
118 
779 
120 
121 
00 
03 
06 
09 
12 
15 
18 
21 
REMARKS, NOTES AND MISCELLANEOUS PHENOMENA 
Col. 722 
SUNRISE 
2T 
SUNSET 
W5* 
*- 3:io// 
SUMMARY OF DAY (MIDNIGHT TO MIDNIGHT) 
MAXIMUM WIND 
LOWEST PRESSUR 
GALES (FORCE 8 
OR HIG 
HER - 6 
IN TROPICAL SEAS) 
DIRECTION 
& SPEED 
BEGAN 
ENDED 
TIME 
(GMT) 
LAT. 
LONG. 
TIME 
(GMT) 
MILLIBARS 
WIND 
DIRECTION 
& SPEED 
LAT. 
LONG. 
TIME 
(GMT) 
DIRECTION & 
SPEED 
LAT. 
LONG. 
TIME 
(GMT) 
DIRECTION 8. 
SPEED 
LAT. 
LONG. 
130 
737 
132 
733 
134 
735 
136 
737 
738 
739 
140 
141 
742 
143 
744 
745 
146 
TYPE 
BEGAN 
ENDED 
TIME 
LAT. 
LONG. 
TIME 
LAT. 
LONG. 
723 
724 
725 
726 
727 
128 
129 
_ 
—-- NAVY-PEARL HARBOR 
