International code flags with their meanings and phonetic names.

A – Alpha

I have a diver down; keep well clear at slow speed.

B – Bravo

I am taking in, or discharging, or carrying dangerous goods.

100400_rd_c.gif

C – Charlie

Yes (affirmative).

100400_rd_c.gif

D – Delta

Keep clear of me; I am maneuvering with difficulty.

100400_rd_d.gif

E – Echo

I am altering my course to starboard.

100400_rd_e.gif

F – Foxtrot

I am disabled; communicate with me.

100400_rd_f.gif

G – Golf

I require a pilot. When made by fishing vessels in close proximity on the fishing grounds it means: “I am hauling nets.”

100400_rd_g.gif

H – Hotel

I have a pilot on board.

100400_rd_h.gif

I – India

I am altering my course to port.

100400_rd_i.gif

J – Juliette

I am on fire and have dangerous cargo on board, stay clear.

100400_rd_J.gif

K – Kilo

I wish to communicate with you.

100400_rd_k.gif

L – Lima

You should stop your vessel immediately.

100400_rd_L.gif

M – Mike

My vessel is stopped and making no way through the water.

100400_rd_m.gif

N – November

No (negative).

100400_rd_n.gif

O – Oscar

Man overboard.

100400_rd_o.gif

P – Papa

In harbor,—all persons should report on board as the vessel is about to proceed to sea. At sea,—May be used by fishermen to mean: “My nets have come fast on an obstruction.” It may also be used as a sound to mean: “I require a pilot.”

100400_rd_p.gif

Q – Quebec

My vessel is healthy and I request free practique (clearance).

100400_rd_Q.gif

R – Romeo

blab

100400_rd_r.gif

S – Sierra

I am operating astern propulsion.

100400_rd_s.gif

T – Tango

Keep clear of me; I am engaged in pair trawling.

100400_rd_t.gif

U – Uniform

You are running into danger.

100400_rd_f.gif

V – Victor

I require assistance.

100400_rd_g.gif

W – Whiskey

I require medical assistance.

100400_rd_f.gif

X – Xray

Stop carrying out your intentions and watch for my signals.

100400_rd_u.gif

Y – Yankee

I am dragging my anchor.

100400_rd_y.gif

Z – Zulu

I require a tug.

100400_rd_g.gif

Two Flag Signals

AC – I am abandoning my vessel.

LO – I am not in my correct position; used by a light vessel.

RU – Keep clear of me; I am maneuvering with difficulty.

AN – I need a doctor.

NC – I am in distress and require immediate assistance.

SO – You should stop your vessel instantly.

BR – I require a helicopter.

PD – Your navigation lights are not visible.

UM – The harbor is closed to traffic.

CD – I require assistance in the nature of …

PP – Keep well clear of me.

UP – Permission to enter harbor is urgently requested. I have an emergency.

DV – I am drifting.

QD – I am going ahead.

YU – I am going to communicate with your station by means of the International Code of Signals.

EF – SOS/MAYDAY has been canceled.

QT – You should not anchor. You are going to foul my anchor.

 

FA – Will you give me my position?

QQ – I require health clearance.

 

GW – Man overboard. Please take action to pick him up.

QU – Anchoring is prohibited.

ZL – Your signal has been received but not understood.

JL – You are running the risk of going aground.

QX – I request permission to anchor.

 

N + C – November Charlie

I am in distress.

Three Flag Signals

ZD1 – Please report me to the Coast Guard, New York

ZD2 – Please report me to Lloyds, London.

100400_rd_d.gif
One pennant means a small craft warning with winds to up to 38 mph.
100400_rd_gale2.gif
Two pennants is a gale warning with winds from 39 to 54 mph.

One flag means storm or whole gale warning, with winds from 55 to 73 mph.
 100400_rd_hurricane2.gif
Two flags indicate a hurricane warning with winds 74 mph. and higher.