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-HOUR 
PRESSURE 
TENDENCY 
1 
1 
SIGNIFICANT CLOUD 
Oc¬ 
tant 
(0-3) 
(5-8) 
Latitude 
(Degrees 
and 
tenths) 
Long itude 
(Degrees 
and 
te nth s) 
Direction 
(True) 
(00-36) 
Speed 
(True) 
(Knots) 
Present 
(00-99) 
Past 
(0-9) 
Barometer 
Corrected 
(Mb) 
Amount of 
Low Cloud 
Type of C L 
(0-9) 
Height of 
Low Cloud 
Type of C M 
(0-9) 
X 
u 
""S 
2L c> 
^3 
Characteristic 
(0-8) 
Amount of 
Change 
(Mb and tenths) 
Indicator 
Amount 
(E ights) 
Type 
Hei ght 
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 
-1 
Y 
Q 
L L L 
j n a 
L L L 
o o o 
GG 
N 
dd 
ff 
VV 
ww 
W 
PPP 
TT 
N h 
c L 
h 
Cm 
c H 
D 
S 
V 
S 
a 
PP 
8 
N 
S 
C 
h h 
s s ! 
SHIP 
00 
8 
SHIP 
06 
8 
1 
SHIP 
12 
8 
SHIP 
18 
8 
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 
Ind icator 
P U !X 
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 , L 
L L 
1 
d d 
W W 
P 
W 
H 
W 
1 
d d 
W W 
P 
W 
H 
w 
2 
1 
S 
E E 
5 S 
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 
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 
Cel sius 
Cels ius 
Celsius 
REMARKS 
EXAMINED 
USN, NAVIGATOR 
