Form Approved; Budget Bureau No. 41-R1258.4 
NAME OF VESSEL 
□ s/s 
□ M/V 
NAA*E OF CAPTAIN 
▼T O ~\JKrn U I 
(1-64) 
WEATHER BUREAU 
INSTRUCTIONS 
COUNTRY OF REGISTRY 
CALL SIGN 
MONTH 
1 9 h / 
BAROMETER NO. 
-*-//</ 
FROM 
TO 
SHIP’S WEATHER OBSERVATIONS 
Check ( / / 
TEMPERATURES (COLS. 16-18, 28-30, 32-33): 
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. 
POSITION OF SHIP 
OCT¬ 
ANT 
LATITUDE 
LONGI¬ 
TUDE 
fC: 
Q 
ft -v 
— Y 
(Degrees and tenths) 
TIME 
( Nearest 
hour 
00-25) 
(G.C.T.) 
TOTAL 
CLOUD 
AMT. 
WIND 
( Coded) 
(0-9) 
(True) 
(00-36) 
LaLaLa 
LoLoi-o 
GG 
N dd 
l 
ff3 6 S 'J 
6 1C 
7 
0 ) 
06 
12 
18 
00 
C 
fil 
m 
c y 
/ 
00 
2 
06 
12 
18 
A / 
00 
06 
12 
18 
Q 
La La La 
LoLnLo 
GG 
N 
dd 
SPEED 
( / rue- 
knots) 
EST. 
VISI¬ 
BILITY 
WEATHER 
PAST 
(Coded) (Coded) (Coded) 
(90-99) (00-99) (0-9) 
10 11 12 
W 
W 
fc (o 
7 
~L 
Ut 
n §q 
U 
| 7) 
07 
0 7 
n 1 
V 
(J 
c. 
(- 
t ( 
w 
A 
67. 
10 11 
12 
W 
W 
CORREC¬ 
TION 
BAROME¬ 
TER AS 
READ 
PRESSURE 
DATE 
COMPARED 
(in., mb., 
or mm.) 
13 
jo 
tv 
/0 13) 
n r-jl 
j o ZZ, 
fo ll.X 
(* I k ) 
ft ?j( 1 
ft H. V 
h M,Q 
ti >4 
/s> tlj 
ft iz i 0 
tu&i 
Hi it • Y 
J & hi • & 
13 
(oh lb 
BAROMETER 
CORRECTED 
"CODED 
Sea Level 
(mb.) (mb.) 
(Round¬ 
ed) 
TEMPERA¬ 
TURE 
WET 
BULB 
( Degrees 
and tenths) 
14 
15 
PPP 
17 
TT — 
f Tl 
/o' N 1 
Xt hi. 
Z 
zfto 
ik 
ft P~ 
/O 
r 
3* A 
fO 
ft 
2 /H 
: 1P% 
3 A 
/$■ 
1 *1,0 
P-1 
» r. 
r-h 
I a 
f L* 
(J 
zf 
5 / 
■ ' 1 
f ■} 
/ 0 
.r.i 
14 
15 
16 
17 
TT 
18 
l-i-i 
_ 
Ux 
i A - . * 
747 o 
tU'f 
18 
CLOUDS 
/ Coded) 
3-HOUR 
PRESSURE 
TENDENCY 
N h 
V 
7 ? 
1 
1 
/A 
3 
7L 
2. 
7- 
19 20 
N h C L 
23 24 25 
vs a 
IV 
3 6 
\ 
\ 
\ 
3 
i / 
21 
o 
22 23 24 25 
-M '-H 
Ds v s 
Q 
r 
26 
27 
PP 
TEMPERATURE 
SEA 
WATER 
DIFF- 
AIR-SEA 
( —if air 
colder 
than sea) 
(Degrees and tenths) 
* 7/0 
2J£>z ~i 
__ 
7 
n c 
hi 
N* 
'" 2 .? 
i r 
b 
7 
27 
PP 
vin\ v.3 
2.1 >*6 
21-5 
2-4. V 
4- * v 
28 
*0i 
2.1 
_ 
7, 
29 
DEW 
POINT 
(Whole 
degrees) 
31 
1 J 
a, 
WAVES (Make 2 entries if 2nd pattern observed) 
DEW 
POINT 
SEA 
( Coded) 
32 
T s Ts 
( Round¬ 
ed ) 
34 35 
d w d v 
Idf 
^ >' 
ZM 
2 . V 
^4 
30 
0 
31 
0^ 
L ) 
hi 2. / 
L 
JO 
1 
32 
33 34 35 
T S T S TrfT^ 1 d w d v 
( Coded) 
37 
36 
<3 
\V 
V 
/ 
37 
H w 
SWELL 
39 40 
Pw 
38 
39 40 
d w d w 
41 
REMARKS 
(Enter time of wind shifts, 
frontal passages, beginning 
and ending \of precipita¬ 
tion, coded ice data, waves 
over 30 Vi ft., etc.) 
UAd ) , 
f/n 
42 
v O 
43 
4 3 44 
