OPNAV FORM 3144-1 (9-64) 
0107-714-4100 
DEPARTMENT OF THE NAVY 
SHIP WEATHER OBSERVATION SHEET 
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TABLE I 
TIME 
(GMT) 
WINDS 
□ / IF ESTIMATED 
VISI- 
BIL- 
ITY 
(Miles) 
WEATHER 
(Symbols) 
BAROMETER 
(inches) 
TEMPERATURE 
(Degrees and tenths) 
CLOUDS 
SEA 
WATER 
TEMP. 
(Degrees 
and 
tenths) 
SEA WAVES 
SWELL WAVES 
Dry- 
Bulb 
Wet 
Bulb 
Amount 
(Tenths) 
Hei ght 
Type 
Direction 
(T rue) 
Per iod 
(Seconds) 
Hei ght 
(Feet) 
Direction 
(True) 
Period 
(Seconds) 
Height 
(Feet) 
Direction 
(True) 
Force 
(K not s) 
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TABLE II 
SYNOPTIC OBSERVATIONS 
Day 
of 
Week 
(1-7) 
(GMT) 
POSITION OF SHIP 
WIND 
WEATHER 
PRESSURE 
CLOUDS 
(0-9) 
0 
1 
3-HOUR 
PRESSURE 
TENDENCY 
SIGNIFIC 
ANT ( 
:loud 
FIRST GROUP 
OF 
MESSAGE 
Oc¬ 
tant 
(0-3) 
(5-8) 
Latitude 
(Degrees 
and 
tenths) 
Long itude 
(Degrees 
and 
tenths) 
TIME 
(GMT) 
T otal 
Cloud 
Amt. 
(Coded) 
Direction 
(True) 
(00-36) 
Speed 
(True) 
(Knots) 
Visi¬ 
bil¬ 
ity 
(90-99) 
P resent 
(00-99) 
Past 
(0-9) 
Barometer 
Corrected 
(Mb) 
AIR 
TEMP. 
(°C) 
Amount of 
Low Cloud 
Type of C L 
(0-9) 
Height of 
Low Cloud 
5 
u 
^0 
4) ^ 
Q- O 
9e 
Type of C|_| 
(0-9) 
Course of Ship 1 
Speed of Ship (( 
Characteristic 
( 0 - 8 )_ 
Amount of 
Change 
(Mb and tenths/ 
Indicator 
Amount 
(Eights) 
a> 
Q_ 
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F— 
Height 
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 
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Indicator 
AIR- 
SEA 
DIFF. 
(Coded) 
DEW 
POINT 
(°C) 
SEA WAVES 
SWELL WAVES 
ICE ACCRETION 
SEA ICE 
Indicator 
Direction 
(Coded) 
Period 
(Coded) 
_ 
Height 
(Coded) 
Indicator 
Direction 
(Coded) 
Period 
(Coded) 
Height 
(Coded) 
Indicator 
Source 
Thickness 
Rate 
Indicator 
Kind 
Effect 
Bearing 
Distance 
Orientation 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
41 
42 
43 
44 
45 
46 
47 
48 
0 
T T 
S 5 
T d T d 
1 
d d 
w w 
P 
W 
H 
W 
1 
d d 
W W 
P 
W 
H 
W 
2 
1 
S 
E E 
S S 
R s 
ICE 
9 
K 
D. 
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-v — 
DO NOT TRANSMIT 
Dry Bulb 
(Degrees 
and tenths) 
Wet Bulb 
(Degrees 
and tenths) 
Sea Water 
Temp. 
(Degrees 
and tenths) 
A 1 
a 2 
A 3 
Celsius 
Celsius 
Celsius 
UuJ J 
-« „ of-. 7 
**■* y 
? 
2 1 . 79 
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'X y- 
»*\ r. C* 
x 7 • i 
REMARKS 
EXAMINED 
USN ( NAVIGATOR 
