Your  Interactive  Guide  To  The  San  Joaquin  Delta

International Marine Signal Flags

The following flags are international signals used by ships at sea. They can be used to spell out short messages, or more commonly, used individually or in combination they have special meanings. Strung end to end and hung bow to stern from the rigging they are used to dress the ship for ceremonial and festive occasions.

For another means of communicating with flags, see the semaphore flag waving system.

Alphabet Flags

A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
R
R
S
S
T
T
U
U
V
V
W
W
X
X
Y
Y
Z
Z

Answering Pennant

Answer

Numeric Pennants

0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9

Substitute Pennants

sub1
substitute 1		 sub2
substitute 2		 sub3
substitute 3
The first substitute repeats the upper flag or pennant of a hoist, the second substitute repeats the second flag or pennant, and so on.

Weather Indicator Pennants
Weather Pennants appear either individually or as doubles. When displayed as a pair, they indicate a more severe warning.
 
Small Craft Warning up to 38 mph winds

Gale Warning 39 - 54 mph Winds
Storm Warning 55-73 mph Winds

Hurricane Warning 74+ mph Winds


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