OPNAV FORM 3144-1 (9-64) 
0107-714-4100 
DEPARTMENT OF THE NAVY 
SHIP WEATHER OBSERVATION SHEET 
uss 
DATE (GMT) 
AT/PASSAGE FROM 
TO 
TABLE I 
TIME 
WINDS 
□ V' IF ESTIMATED 
VISI- 
BIL- 
WEATHER 
BAROMETER 
TEMPERATURE 
(Degrees and tenths) 
CLOUDS 
SEA 
WATER 
TEMP. 
SEA WAVES 
1 
SWELL WAVES 
(GMT) 
Direction 
(True) 
Force 
(Knots) 
ITY 
(Miles) 
(Symbols) 
(Inches) 
Dry 
Bulb 
Wet 
Bulb 
Amount 
(Tenths) 
Height 
Type 
(Degrees 
and 
tenths) 
Direction 
(True) 
Period 
(Seconds) 
Hei ght 
(Feet) 
Direction 
(T rue) 
r 
1 
P er 1 od 1 
(Seconds) j 
Height 
(Feet; 
a 
00 
- 0 /-^ 
// 
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1 
TABLE II 
SYNOPTIC OBSERVATIONS 
FIRST GROUP 
OF 
MESSAGE 
Day 
of 
Week 
(1-7) 
(GMT) 
POSITION OF SHIP 
TIME 
(GMT) 
T otal 
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 
. ■' 
SIGNIFICANT CLOUD 
Oc¬ 
tant 
(0-3) 
(5-8) 
Latitude 
(Degrees 
and 
tenths) 
Long itude 
(Degrees 
a nd 
te nth s) 
Direction 
(T rue) 
(00-36) 
Speed 
(True) 
(Knots) 
P res ent 
(00-99) 
Past 
(0-9) 
Barometer 
Corrected 
(Mb) 
Amount of 
Low Cloud 
Type of C|_ 
(0-9) 
Height of 
Low Cloud 
Type of C^ 
(0-9) 
X 
U 
0 ^ 
Cl 0 
t7o 
Characteristic 
( 0 - 8 ) 
Amount of 
Change 
(Mb and tenths) 
Indicator 
Amount 
(E ight s) 
Type 
He ‘ ght 
i 
-;; 
1 
2 
3 
A 
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 
ana 
L L L 
000 
GG 
N 
dd 
ff 
VV 
ww 
W 
PPP 
TT 
Nh 
Cl 
h 
Cm 
Ch 
D 
S 
V 
S 
a 
-1 
PP 
8 
— 
Ns 
- J 
C 
-1 
, , ! 
h n 1 
S 5 
SHIP 
00 
8 
- 1 
1 
SHIP 
1 
y4>7j> 
5'^C> 
06 
F, 
^'7 
7Y 
PI 
P 
ifO, 
27 
<■ 
1 -^ 
(A 
Lo 
t 
/ 
«-> 
6 > 
8 
- -1 
! 
SHIP 
-f-n- 
12 
* 
8 
— 
_ 
SHIP 
18 
— 
8 
-1 
— 
. 
_ 
t 
DO NOT TRANSMIT 
Dry Bulb 
(Degree s 
and tenths) 
Wet Bulb 
(Degree s 
and tenths) 
Sea Water 
j Temp, 
1 iDegrees 
ond tenths,' 
i 1 
A 2 
A 3 i 
1 
Celsius 
Celsius 
Celsius 
_ 
r 
J 
■ 
1 
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 
C 
E ffect 
Bearing 
Distance 
Orientation 
28 
29 
30 
31 
•v 
32 
33 
34 
35 
36 
37 
38 
39 
40 
41 
42 
43 
44 
45 
46 
47 
48 
0 
T T 
S S 
Td Td 
1 
d d 
w w 
P 
W 
H 
W 
1 
d d 
W w 
P 
W 
H 
W 
2 
1 
S 
Es y 
R 
S 
ICE 
C 2 
K 
D. 
1 
r 
e 
0 
1 
1 
2 
ICE 
0 
1 
1 
2 
ICE 
0 
1 
1 
2 
ICE 
0 
1 
1 
2 
ICE 
REMARKS 
EXAMINED 
USN, NAV'GATOR 
