OPNAV FORM 3144-1 (1-68) 
Previous editions obsolete 
S/N-0 107-714-4101 
DEPARTMENT OF THE NAVY 
SECTION I 
TIME 
(GMT) 
WINDS 
□ V ' F ESTIMATED 
VIS!- 
BILITY 
(Miles) 
WEATHER 
(Symbols) 
BAROMETER 
(Inches) 
TEMPERATURE 
(Degrees and tenths) 
CLOUDS 
SEA 
WATER 
TEMP. 
(Degrees 
and , 
tent)is)t ' 
SEA WAVES 
SWELL WAVES 
DIRECTION 
(True) 
FORCE 
(Knots) 
DRY 
BULB 
WET 
BULB 
AMOUNT 
(Tenths) 
HEIGHT 
TYPE 
PERIOD 
(Seconds) 
HEIGHT 
(Feet) 
DIRECTION 
(Tr ue) 
PERIOD 
(Seconds) 
HEIGHT 
(Feet) 
00 
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SECTION II 
SYNOPTIC OBSERVATIONS 
FIRST GROUP 
OF 
MESSAGE 
INDICATOR 
POSITION OF SHIP 
DAY OF MONTH 
TIME 
(GMT) 
WIND INDICATOR 
Total 
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-HOUR 
PRESSURE 
TENDENCY 
INDICATOR 
AIR- 
SEA 
DIFF. 
(Coded) 
DEW 
POINT 
(°C) 
LATITUDE 
(Degrees 
and 
tenths) 
QUARTER 
OF GLOBE 
LONGITUDE 
(Degrees 
and 
tenths) 
DIREC¬ 
TION 
(True) 
(00-36) 
SPEED 
(True) 
(Knots) 
PRES¬ 
ENT 
(00-99) 
PAST 
(0-9) 
BAROMETER 
CORRECTED 
(Mb) 
AMOUNT OF 
LOW CLOUD 
_J 
O 
U. ^ 
o <7 
LU 0, 
CL 
>- 
H 
HEIGHT OF 
LOW CLOUD 
TYPE OF C M 
(0-9) 
TYPE OF C H 
(0-9) 
CHARACTER¬ 
ISTIC (0-8) 
AMOUNT OF 
CHANGE 
(Mb and tenths) 
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 
28 
99 
La La L a 
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SHIP 
99 
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DO NOT TRANSMIT 
DRY BULB 
(Degrees 
and tenths) 
WET BULB 
(Degrees 
and tenths) 
SEA WATER 
TEMPERATURE 
(Degrees 
and tenths) 
Ai 
f\ 2 
A 3 
Celsius 
Celsius 
Celsius 
qvy 
'S- 
yy/ 
/3.? 
STY 
SY?,3 
/67C 
/37& 
//. 7 
/ 5 / 
INDICATOR 
SEA WATER 
TEMPERATURE 
(Degrees 
and tenths) 
TENTHS VALUE 
AIR TEMP. °C 
ICE ACCRETION 
SEA WAVES 
SWELL WAVES 
SEA ICE 
INDICATOR 
SOURCE 
THICKNESS 
RATE 
INDI¬ 
CA¬ 
TOR 
PERIOD 
HEIGHT 
(Coded) 
DIRECTION 
(True) 
PERIOD 
(Coded) 
HEIGHT 
(Coded) 
INDICATOR 
KIND 
EFFECT 
BEAR¬ 
ING 
DIS¬ 
TANCE 
ORIEN¬ 
TA¬ 
TION 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
41 
42 
43 
44 
45 
46 
47 
1 
T w T w Tw 
7 
2 
's 
E S E S 
R s 
3 
P P 
r w r w 
H W H w 
d w d w 
P W 
Hw H w 
ICE 
c 2 
K 
Dj 
r 
e 
1 
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2 
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s 
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ICE 
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t>2 
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ICE 
1 
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aO 
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fsr 
'03 
ICE 
REMARKS 
EXAMINED 
USN, NAVIGATOR 
C-3927 
