OPNAV FORM 3144-1 (9-64) 
0107-714-4100 
DEPARTMENT OF THE NAVY 
SHIP WEATHER OBSERVATION SHEET 
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TABLE I 
TIME 
(GMT) 
WINDS 
□ A 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 
Dry 
Bulb 
Wet 
Bulb 
Type 
Direction 
(T rue) 
Per iod 
(Seconds) 
Height 
(Feet) 
Direction 
(T rue) 
Period 
(Seconds) 
Height 
(Feet) 
Direction 
(True) 
Force 
(K nots) 
Amount 
(Tenths) 
Hei ght 
( 00 \ 
v., -Jt 
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TABLE II 
SYNOPTIC OBSERVATIONS 
FIRST GROUP 
OF 
MESSAGE 
Day 
of 
Week 
d-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) 
3-1 
PRE 
TEN 
HOUR 
;ssure 
DENCY 
Sl( 
^NIFICANT ( 
:loud 
Oc¬ 
tant 
(0-3) 
(5-8) 
L atitude 
(Degrees 
and 
tenths) 
Longitude 
(Degrees 
and 
tenths) 
Direction 
(True) 
(00-36) 
Speed 
(T rue) 
(Knots) 
P resent 
(00-99) 
Past 
(0-9) 
Barometer 
Corrected 
(Mb) 
v. T3 
0 g 
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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 
Celsius 
Celsius 
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REMARKS 
EXAMINED 
USN, NAVIGATOR 
