OPNAV FORM 3144-1 (9-64) 
0107 - 714-4100 
DEPARTMENT OF THE NAVY 
SHIP WEATHER OBSERVATION SHEET 
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TABLE I 
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WINDS* 
□ v IF ESTIMATED 
VISI- 
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ITY 
(Miles) 
WEATHER 
(Symbols) 
BAROMETER 
(Inches) 
TEMPERATURE 
(Degrees ond tenths) 
CLOUDS 
SEA 
WATER 
TEMP. 
(Degrees 
and 
tenths) 
SEA WAVES 
----- 
SWELL WA,VES 
\ 
Direction 
(True) 
Force 
(K nots) 
Dry 
Bulb 
Wet 
Bulb 
Amount 
(Tenths) 
Height 
Type 
Direction 
(T rue) 
Per iod 
(Seconds) 
Hei ght 
( Feet) 
D irect ion 
(True) 
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TABLE II 
SYNOPTIC OBSERVATIONS 
FIRST GROUP 
OF 
MESSAGE 
Day 
of 
Week 
(1-7) 
(GMT) 
POSITION OF SHIP 
TIME 
(GMT) 
T ota 1 
Cloud 
Amt. 
(Coded; 
WIND 
Visi¬ 
bil¬ 
ity 
(90-99) 
WEATHER 
PRESSURE 
AIR 
TEMP. 
(°C) 
CLOUDS 
Course of Ship (0-9) 
Speed of Ship (0-9) 
3- 
PR 
TEh 
HOUR 
ESSURE 
IDENCY 
SIGNIFICANT CLOUD 
Oc- 
tont 
(0-3) 
(5-8) 
L at it ude 
(Degrees 
and 
tenths) 
Long itude 
(Degrees 
ond 
tenths) 
Direction 
(True) 
(00-36) 
Speed 
(True) 
(Knots) 
P resent 
(00-99) 
Past 
(0-9) 
Barometer 
Corrected 
(Mb) 
Amount of 
Low Cloud 
_l 
u 
"0 
K. cP 
Height of 
Low Cloud 
Type °f C M 
(0-9) 
X 
O 
75 
<> 
Characteristic 
(0-8) 
Amount of 
Change 
(Mb and tenths) 
Indicator 
Amount 
(Eights) 
Type 
Hei ghf 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
— 
27 
Y 
Q 
L L L 
j " a 
L L L 
OOO 
GG 
N 
dd 
ff 
VV 
ww 
W 
ppp 
TT 
N h 
c L 
h 
C M 
c H 
D 
S 
V 
5 
a 
PP 
8 
N 
S 
C 
h h 
s s 
SHIP 
00 
— 
8 
— 
SHIP 
06 
8 
SHIP 
12 
8 
— 
SHIP 
18 
8 
Indicator 
AIR- 
SEA 
DIFF. 
(Coded) 
DEW 
POINT 
(°C) 
SEA WAVES 
SWELL WAVES 
ICE ACCRETION 
SEA ICE 
DO NOT TRANSMIT 
Indicator 
Direction 
(Coded) 
Period 
(Coded) 
Height 
(Coded) 
Indicator 
Direction 
(Coded) 
Period 
(Coded) 
Height 
(Coded) 
Indicator 
Source 
Thickness 
Rate 
Indicator 
Kind 
Effect 
Bearing 
Distance 
Orientation 
Dry Bulb 
(Degrees 
and tenths) 
Wet Bulb 
(Degrees 
and tenths) 
Sea Water 
Temp. 
(Degrees 
and tenths) 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
41 
42 
43 
44 
45 
46 
47 
48 
A 1 
a 2 
A 3 
0 
T T 
t h 
1 
d d 
P 
H 
1 
d d 
P 
H 
2 
1 
E E 
R 
ICE 
C 9 
K 
D 
r 
e 
Celsius 
Celsius 
Celsius 
S S 
a a 
W W 
W 
W 
W W 
W 
W 
S 
5 5 
S 
l 
1 
0 
1 
1 
2 
ICE 
0 
1 
1 
2 
ICE 
0 
1 
1 
2 
ICE 
0 
1 
1 
2 
ICE 
REMARKS 
EXAMINED 
USN, NAVIGA T 0R 
