OPNAV FORM 3144-1 (1-68) 
Previous rditiaris obsolete 
S'N-0 107-714-4101 
DEPARTMENT OF THE NAVY 
SHIP WEATHER OBSERVATION SHEET 
uss -s.. 
AT PASSAGE FROM p l\/ ^ _ 
(gmt) t\Ouj I9j;'p 
OP fife ^ P 
SECTION I 
TIME 
(GMT) 
WINDS 
□ v IF ESTIMATED 
VISI¬ 
BILITY 
WEATHER 
(Symbols) 
BAROMETER 
(Inches) 
TEMPERATURE 
(Degrees and tenths) 
CLOUDS 
SEA 
WATER 
TEMP. 
(Degrees 
and 
tenths) 
SEA WAVES 
SWELL WAVES 
DIRECTION 
(True) 
FORCE 
(Knots) 
(Miles) 
DRY 
BULB 
WET 
BULB 
AMOUNT 
(Tenths) 
HEIGHT 
TYPE 
PERIOD 
(Seconds) 
HEIGHT 
IFeet) 
DIRECTION 
(Tf ue) 
PERIOD 
(Seconds) 
HEIGHT 
(Feet) 
00 
01 
02 
03 
04 
05 
06 
07 
08 
09 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
i 0 
22 
lO 
23 
_Q2iL 
-ibS 
_lO_. 
0)-R 
0/ 
v/ { . l ^ 
u. 
<Ux 
■S'/ 
SECTION II 
SYNOPTIC OBSERVATIONS 
FIRST GROUP 
OF 
MESSAGE 
INDICATOR 
POSI 
TION 01 
- 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 
_i 
o 
u. ^ 
O O’ 
1 
uj 2- 
Q. 
> 
1- 
HEIGHT OF 
LOW CLOUD 
TYPE OF C^ 
(0-9) 
TYPE OF C^^ 
(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 La 
Qc 
*"0 *"0 ^0 ^0 
YY 
GG 
N 
dd 
ff 
VV 
ww 
W 
PPP 
TT 
Nh 
Cl 
h 
Cm 
Ch 
Ds 
s 
a 
PP 
0 
TdTd 
SHIP 
99 
00 
0 
SHIP 
99 
06 
0 
SHIP 
99 
12 
0 
SHIP 
99 
18 
0 
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 T T 
w ' w ' w 
^T 
2 
's 
CsLs 
Rs 
3 
P P 
'^w ‘^w 
Hw 
dw dvv 
Pw 
Hw Hw 
ICE 
C 2 
K 
Di 
r 
e 
1 
2 
3 
ICE 
1 
2 
3 
ICE 
1 
2 
3 
ICE 
1 
2 
3 
ICE 
DO NOT TRANSMIT 
DRY BULB 
(Degrees 
and tenths) 
WET BULB 
(Degrees 
and tenths) 
SEA WATER 
TEMPERATURE 
(Degrees 
and tenths) 
A 2 
A 3 
Celsius 
Celsius 
Ce Isius 
REMARKS 
EXAMINED 
USN, NAVIGATOR 
