Form Approved; Budget Bureau No. 41-R1258.4 
NAME 
□ 
□ 
OF VESSEL 
11 
COUNTRY OF REGISTRY 
CALL SIGN 
MONTH * 
BAROMETER NO. 
(G.C.TJ 
if- 
-y" 
J 
2 
/ 
z. 
2 
POSITION OF SHIP 
OCT¬ 
ANT 
( 0 - 3 . 
3 - 8 ) 
Q 
LATITUDE 
LONGI¬ 
TUDE 
(Degrees and tenths) 
LaLaLa 
Q 
LaLaLa 
LnLoLo 
TIME 
( Nearest 
hour 
00 - 23 ) 
(G.C.T.) 
GG 
00 
06 
12 
18 
00 
06 
12 
18 
00 
06 
12 
U 
00 
TOTAL 
CLOUD 
AMT. 
N 
7 
/• 
06 
12 
18 
00 
06 
LoLoLn 
12 
18 
GG 
name of captain 
FROM 
TO 
WB FORM 615-5 
(8-63) 
U.S. DEPARTMENT OF COMMERCE 
WEATHER bureau 
INSTRUCTIONS 
SHIP'S WEATHER OBSERVATIONS 
Check ( ^ ) 
TEMPERATURES (COLS. 16-18, 28-30, 32-33): 
□ "C 
□ ’f 
WIND 
dd 
// 
y. 
a 
(C 
% 
/<■ 
524 ^ 
13 
N 
dd 
SPEED 
( I rue- 
knots ) 
EST. 
// 
iV.- 
V 
/ 
'7 
/S 
/r 
/s 
r 
VISI¬ 
BILITY 
W 
ft 
6 
n 
WEATHER 
PRES¬ 
ENT 
1 1 
f 
/I 
\ J 
-2^ 
■>5 ! 
’..'t 
10 
PAST 
1 2 
W 
2 
Y'r'/S 
— JL- 
2 
j 
11 
12 
PRESSURE 
CORREC¬ 
TION 
BAROME¬ 
TER AS 
READ 
13 
/ 
7 'S-^/ 
14 
DATE 
COMPARED 
BAROMETER 
CORREaED 
'tODED 
Sea Lei el 
(mh.) 
15 
PPP 
2m 
2n< 
2 % 
Wc 
13 
14 
15 
PPP 
AIR 
TEMP. 
( Round¬ 
ed) 
16 
TT 
TEMPERA¬ 
TURE 
DRY 
BULB 
17 
7/ 
.37 
W 
71^ 
I'v.'Ti 
m' 
16 
TT 
?,0 
17 
WET 
BULB 
18 
18 
CLOUDS 
( Coded) 
19 
Nh 
19 
Nh 
20 
Cl 
21 
7" 
22 
23 
Ch 
20 
21 
22 
23 
Ch 
24 
3-HOUR 
PRESSURE 
TENDENCY 
25 
Vs 
26 
24 
25 
Vs 
27 
PP 
aio 
237 
r 
26 
27 
PP 
1. Begin a new sheet: 
ti. For the first observation of a new month, 
b. At the beginning of each voyage. 
I. 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 completecl 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 the letter X indicat¬ 
ing missing data. Omit code group 8 and 9 in message if 
no data are available. 
TEMPERATURE 
SEA 
WATER 
28 
37 
•^*77 
•-"3 . 
^2 
2^X 
lis 
.2Vf 
28 
DIFF- 
AIR-SEA 
( — if air 
colder 
than sea) 
29 
DEW 
POINT 
(Whole 
degrees) 
30 
29 
31 
DEW 
POINT 
( Round¬ 
ed ) 
33 
TsT. 
30 
TdTd 
31 
32 
TsT.s 
33 
TdTd 
WAVES (Make 2 entries if 2nd pattern observed) 
SEA/SWELL 
34 
o 
(00-36; 
35 
d wdv 
/d 
34 
iy 
K 
/ 
y , 
/. 
35 
dwdv 
X 
( Coded) 
Hw 
A 
J 
0 
y 
36 
J 
37 
Hw 
SWELL 
O 
( 00 - 3 ()) 
-i. 
dwdw 
38 
39 
dwd« 
X 
( Coded) 
40 
41 
REAAARKS 
( Enter time of wind shifts, 
frontal passages, beginning 
and ending of precipita¬ 
tion, coded ice data, waves 
over 301/2 fi‘> 
42 
V) 
'^O 
43 
44 
