Form Approved; Budget Bureau No. 41-R1258.4 
Tv\E OF VESSEL 
□ s/s 
- 
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COUNTRY OF REGISTRY 
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MONTH 
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BAROMETER NO. 
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POSITION OF SHIP 
OCT¬ 
ANT 
(0-3. 
5 - 8 ) 
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LATITUDE 
LONGI¬ 
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(Degrees and tenths) 
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18 
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06 
12 
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06 
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06 
12 
18 
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06 
12 
18 
TOTAL 
CLOUD 
AMT. 
( Coded) 
( 0 - 9 ) 
N 
u 
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XX 
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NAME OF CAPTAIN 
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fly 
FROM 
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WIND 
(True) 
( 00 - 36 ) 
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SPEED 
(True- 
knots ) 
EST. 
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VISI¬ 
BILITY 
PRES¬ 
ENT 
( Coded) 
( 90 - 99 ) ( 00 - 99 ) 
( Coded) 
10 
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WEATHER 
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PAST 
( Coded) 
( 0 - 9 ) 
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/ 
1 1 
1 O 
PRESSURE 
WB form 615-5 
U.S. 
DEPARTMENT OF COMMERCE 
(1-64) 
WEATHER BUREAU 
SHIP’S WEATHER 
OBSERVATIONS 
Check (y/ ) 
TEMPERATURES (COLS. 16-18, 28-30, 32-33): 
O LI/- 
u. 
O "Z; 
□ . 
C 
? 
mr 
r 
ii-" ■ v Z 
BAROME¬ 
TER AS 
READ 
(in., mb., 
or mm.) 
13 
—hit 
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111 L L 
DATE 
COMPARED 
BAROMETER 
CORRECTED 
(mb.) 
14 
1C 
/6 
'CODED 
Sea Lei el 
( mb.) 
15 
PPP 
1/ > A 
J „ 
AIR 
TEMP. 
( Round¬ 
ed) 
16 
TT 
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l 
V 
/ 7 
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z 
^ ry 
,) 1 
}>iq 
*— it / 
V£> 
TEMPERA¬ 
TURE 
DRY 
BULB 
WET 
BULB 
( Degrees 
and tenths) 
17 
If 
-z 
2 
- . 4 .. J 
/• 
*, *9- *■'- 
XI 
18 
Z.i'a 
CLOUDS 
/ Coded) 
19 
N h 
£ 
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1 1 * 4 . 
r< ;? 
a: 
20 
21 
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22 
Z/ 
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23 
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23 
to , 
24 
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25 
vs 
3 
3 
PRESSURE 
TENDENCY 
26 
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V 
27 
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/ 
INSTRUCTIONS 
1. Begin a new sheet: 
a. For the first observation of a new month. 
b. At the beginning of each voyage. 
c. Upon sailing from one octant to another. 
d. Upon sailing from one ocean to another. 
2. Fill in the blanks on each page of the form. (Name of 
vessel, barometer number, etc.) 
3. Enter the coded synoptic (0000, 0600, 1200, 1800 G.C.T.) 
or special weather observations in columns 1 through 44. 
Code the message in accordance with the "International 
Weather Code for Ships.” 
4. At end of each voyage, remove all forms with completed ob¬ 
servations and mail in the postage-free envelopes provided. 
5. Radio transmission—Copy coded data for radio transmission 
from the unshaded numbered groups of columns. Each 
code group consists of five figures with a slant (/) indi¬ 
cating missing data. Omit code group 8 and 9 in message 
if no data are availble. 
TEMPERATURE 
SEA 
WATER 
DIFF- 
AIR-SEA 
( —if air 
colder 
than sea) 
(Degrees and tenths) 
28 
j/i 
29 
Tl 
DEW 
POINT 
(Whole 
degrees) 
30 
/ 
2 j2 
521 
X 
r 
4 r y O 
XU 
A 
h± 
1 
X 
4 
31 
l 0 
A 4 l 0 
y) 
> i 
'7 
( Coded) 
32 
T S T S 
X 
DEW 
POINT 
( Round¬ 
ed ) 
33 
T d T c 
7 
no 
77 
5 C.-1 
WAVES r Make 2 entries if 2nd pattern observed) 
SEA 
34 
1 A./ 
i/7, 
1 
X. 
Q 
(00-36; 
35 
d w d w 
If} 
A<r 
(J 3 
f V 
( Coded) 
36 
*7 
1 
Oo 
GL 
-r T 
X 
x 
f Coded) 
37 
7 
■-~S 
\ 
V 
SWELL 
38 
u 
LU 
OL 
a 
(00-36) 
39 
d w d w 
mdf 
J 
/ 
c ./■ 
( Coded) 
40 
JL 
x 
( Coded) 
41 
/ 
X 
1 
/ 
f 
■ 
/ 
/ 
/ 
/ 
X- 
7 
/V 
3 
40 
41 
H w 
REMARKS 
(Enter time of wind shifts, 
frontal passages, beginning 
and ending of precipita¬ 
tion, coded ice data, waves 
over 301/2 ft., etc.) 
42 
- f 
_ 
42 
>o 
43 
44 
43 
44 
