OPNAV FORM 3144-1 (9-64) 
0107 - 714-4100 
DEPARTMENT OF THE NAVY 
SHIP 
WEATHER OBSERVATION SHEET 
uss 
LU=L 
DATE (GMT) 
AT/PASSAGE FROM 
TO _ 
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 
Direction 
(T rue) 
Force 
(K nots) 
Dry 
Bulb 
Wet 
Bulb 
Amount 
(T enths) 
Hei ght 
Type 
Direction 
(T rue) 
Period 
(Seconds) 
Height 
(Feet) 
Direction 
(True) 
Period 
(Second s) 
Height 
(Feet) 
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TABLE II 
SYNOPTIC OBSERVATIONS 
FIRST GROUP 
OF 
MESSAGE 
Day 
of 
Week 
d-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) 
Longitude 
(Degrees 
and 
tenths) 
Direction 
(True) 
(00-36) 
Speed 
(True) 
(Knots) 
P resent 
(00-99) 
Past 
(0-9) 
Barometer 
Corrected 
(Mb) 
r 
Amount of 
Low Cloud 
Type of C L 
(0-9) 
Height of 
Low Cloud 
Type of C M 
(0-9) 
X 
u 
"0 
<1) .—- 
Q. O 
t^e 
Characteristic 
(0-8) 
Amount of 
Change 
(Mb and tenths. 
Indicator 
Amount 
(Eights) 
a> 
Q_ 
>* 
1— 
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 
Y 
Q 
L L L 
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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 
Cels ius 
Celsius 
J. J t £ 
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V. « , y 
REMARKS 
EXAMINED 
USN, NAVIGATOR 
