Sea Ledger, November 2003

2003-11-01 to 2003-11-30 · archive

issued: 330
warning-days in force: 6,140
in force at month end: 204
sea × type cells: 188

baseline: same month, previous 5 years (2002-11, 2001-11, 2000-11, 1999-11, 1998-11)

By type

type	issued	warning-days	in force at end
Exercises	67	470	15
Incidents	51	797.1	27
Cable ops	43	527	18
Quakes	40	120	3
Nav aids	39	2,055.4	71
Surveys	20	600.5	20
Derelicts	20	178.1	4
Other	16	517.1	16
Spills	8	107	5
Missiles	5	60	2
Ordnance	5	48.1	2
Containers	5	46	0
Debris	4	20.5	1
Icebergs	3	19.2	0
Wrecks	2	424.4	15
Structures	1	23.8	1
Towing	1	32.6	1
War risk	0	60	2
Restricted	0	33.6	1

By sea and type · 188 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	31	102.5	4	30	1.2× / 25
Incidents · North Pacific Ocean	15	195.7	9	69	1.8× / 8.2
Exercises · Laccadive Seasurge	13	65.3	2	32	7.2× / 1.8
Quakes · North Pacific Oceansurge	11	35	0	—	2.6× / 4.2
Exercises · Arabian Seasurge	10	26.4	1	32	5.0× / 2
Exercises · North Atlantic Ocean	9	83.6	4	93	1.1× / 8
Quakes · South Pacific Ocean	9	23.3	2	19	0.8× / 11.2
Incidents · Mediterranean Sea - Eastern Basinsurge	9	22.5	1	22	6.4× / 1.4
Nav aids · South Atlantic Ocean	8	224.2	9	156	1.2× / 6.6
Incidents · South Atlantic Oceansurge	8	114.5	5	38	2.7× / 3
Exercises · Bay of Bengalsurge	7	23.6	1	32	3.9× / 1.8
Spills · Gulf of Mexico	6	59	4	39	1.8× / 3.4
Cable ops · Arabian Seasurge	5	176.7	7	54	4.2× / 1.2
Nav aids · Great Australian Bightsurge	5	67.4	4	54	13× / 0.4
Nav aids · North Atlantic Ocean	5	63.6	3	235	1.7× / 3
Missiles · North Pacific Ocean	5	60	2	34	1.2× / 4.2
Incidents · South Pacific Ocean	5	22.7	2	22	1.2× / 4.2
Derelicts · Indian Oceansurge	5	15.3	1	22	13× / 0.4
Quakes · Molukka Seasurge	5	15	0	—	6.3× / 0.8
Surveys · Mediterranean Sea - Eastern Basinsurge	4	69.3	2	37	3.3× / 1.2
Incidents · North Atlantic Ocean	4	66.6	2	66	0.8× / 5.2
Exercises · Mediterranean Sea - Eastern Basin	4	62	1	31	1.5× / 2.6
Exercises · Mediterranean Sea - Western Basin	4	21.3	1	24	1.5× / 2.6
Derelicts · South Atlantic Oceansurge	4	12.4	0	—	3.3× / 1.2
Incidents · Coral Sea	3	83.7	2	47	0.7× / 4.2
Surveys · Indian Oceannew	3	71.8	2	60	new / 0
Nav aids · North Sea	3	50.8	1	71	0.5× / 6.4
Nav aids · English Channel	3	46	2	328	1.5× / 2
Surveys · South Atlantic Ocean	3	43.5	0	—	0.9× / 3.2
Exercises · Tyrrhenian Sea	3	41.9	1	30	1.3× / 2.4
Containers · North Atlantic Ocean	3	31.3	0	—	1.9× / 1.6
Derelicts · Mediterranean Sea - Eastern Basinsurge	3	30.5	2	31	15× / 0.2
Ordnance · North Atlantic Oceansurge	3	15.9	0	—	2.5× / 1.2
Exercises · Black Seasurge	3	15.1	1	17	2.5× / 1.2
Quakes · Philippine Sea	3	9	0	—	1.7× / 1.8
Nav aids · Celtic Sea	2	158.9	4	233	1.4× / 1.4
Other · Japan Sea	2	66.4	2	35	1.7× / 1.2
Other · Yellow Sea	2	60.7	1	34	1.3× / 1.6
Other · North Sea	2	40.5	1	43	10× / 0.2
Incidents · Philippine Sea	2	37.9	2	67	0.5× / 4.2
Spills · North Pacific Ocean	2	26	1	19	3.3× / 0.6
Icebergs · South Atlantic Ocean	2	12.9	0	—	0.4× / 5
Debris · North Atlantic Ocean	2	12.5	0	—	2.5× / 0.8
Exercises · South Atlantic Ocean	2	9.9	0	—	0.5× / 3.8
Exercises · North Pacific Ocean	2	8.4	1	8	0.4× / 5.4
Other · North Atlantic Ocean	2	8.2	0	—	1.3× / 1.6
Quakes · Bismarck Sea	2	7.3	0	—	1.1× / 1.8
Quakes · Indian Ocean	2	6.9	0	—	1.3× / 1.6
Exercises · Adriatic Sea	2	5.1	0	—	0.7× / 3
Exercises · Andaman or Burma Sea	2	4.4	0	—	10× / 0.2
Exercises · Ionian Sea	2	3.6	0	—	2.0× / 1
Incidents · Indian Ocean	2	2.4	0	—	0.4× / 5
Incidents · Tasman Sea	2	0.2	0	—	1.3× / 1.6
Nav aids · Mozambique Channel	1	111.8	3	156	5.0× / 0.2
Nav aids · South Pacific Oceanlong running	1	107.9	4	372	0.3× / 3
Incidents · South China Sea	1	102.8	2	66	0.3× / 3.8
Nav aids · Coral Sea	1	70	3	252	1.0× / 1
Cable ops · Eastern China Sea	1	70	2	66	1.7× / 0.6
Other · Persian Gulf	1	56.7	2	299	2.5× / 0.4
Cable ops · Mediterranean Sea - Eastern Basin	1	56.3	2	97	0.7× / 1.4
Surveys · Japan Sea	1	42	1	47	new / 0
Nav aids · Inner Seas off the West Coast of Scotland	1	33.2	1	118	0.4× / 2.4
Nav aids · Indian Ocean	1	30	1	34	2.5× / 0.4
Exercises · Malacca Strait	1	28.7	0	—	2.5× / 0.4
Structures · South Atlantic Ocean	1	23.8	1	53	new / 0
Other · South Atlantic Ocean	1	19.5	1	19	1.3× / 0.8
Cable ops · Indian Ocean	1	18.4	1	18	5.0× / 0.2
Wrecks · Coral Sea	1	17.9	1	17	5.0× / 0.2
Wrecks · Mediterranean Sea - Eastern Basin	1	16.5	1	16	new / 0
Cable ops · Makassar Strait	1	16.1	1	16	new / 0
Cable ops · Laccadive Sea	1	15.3	0	—	5.0× / 0.2
Derelicts · Timor Sea	1	10.7	0	—	5.0× / 0.2
Other · Great Australian Bight	1	10.1	0	—	new / 0
Cable ops · North Pacific Ocean	1	8.6	0	—	1.7× / 0.6
Nav aids · Alboran Sea	1	8.4	1	8	new / 0
Surveys · Mozambique Channel	1	8.4	0	—	new / 0
Surveys · Bass Strait	1	6.9	1	6	new / 0
Derelicts · Eastern China Sea	1	6.7	0	—	new / 0
Derelicts · Japan Sea	1	6.7	0	—	new / 0
Containers · Japan Sea	1	6.6	0	—	new / 0
Derelicts · North Pacific Ocean	1	6.6	0	—	0.5× / 2
Surveys · Sea of Okhotsk	1	6.6	1	6	new / 0
Debris · Ionian Sea	1	6.5	0	—	new / 0
Derelicts · Gulf of Mexico	1	6.3	0	—	5.0× / 0.2
Nav aids · Ionian Sea	1	6.3	1	6	2.5× / 0.4
Icebergs · Southern Ocean	1	6.3	0	—	1.0× / 1
Derelicts · South Pacific Ocean	1	6.2	0	—	1.7× / 0.6
Derelicts · Celtic Sea	1	6.1	0	—	2.5× / 0.4
Derelicts · Philippine Sea	1	6.1	0	—	2.5× / 0.4
Surveys · North Atlantic Ocean	1	5.3	1	46	1.0× / 1
Surveys · Irish Sea and St. George's Channel	1	5.2	1	5	5.0× / 0.2
Surveys · English Channel	1	5	0	—	1.7× / 0.6
Cable ops · North Sea	1	5	0	—	0.3× / 3.4
Surveys · Ionian Sea	1	4.5	0	—	5.0× / 0.2
Surveys · Tyrrhenian Sea	1	4.4	1	4	0.5× / 2.2
Exercises · Philippine Sea	1	4.2	0	—	new / 0
Exercises · South Pacific Ocean	1	4	0	—	0.4× / 2.8
Nav aids · Andaman or Burma Sea	1	3.4	1	3	2.5× / 0.4
Quakes · Banda Sea	1	3	0	—	0.7× / 1.4
Quakes · Coral Sea	1	3	0	—	0.4× / 2.4
Quakes · Flores Sea	1	3	0	—	new / 0
Quakes · Gulf of California	1	3	0	—	5.0× / 0.2
Quakes · North Atlantic Ocean	1	3	0	—	5.0× / 0.2
Quakes · South Atlantic Ocean	1	3	0	—	0.7× / 1.4
Quakes · Tasman Sea	1	3	0	—	5.0× / 0.2
Towing · South Atlantic Ocean	1	2.6	0	—	new / 0
Exercises · Coral Sea	1	2.5	0	—	new / 0
Surveys · Philippine Sea	1	2.5	1	2	5.0× / 0.2
Containers · English Channel	1	2.1	0	—	2.5× / 0.4
Nav aids · Sea of Okhotsk	1	1.9	0	—	new / 0
Nav aids · Timor Sea	1	1.9	0	—	new / 0
Ordnance · Gulf of Mexico	1	1.6	1	1	new / 0
Other · Gulf of Mexico	1	1.6	1	1	5.0× / 0.2
Debris · Philippine Sea	1	1.5	1	1	5.0× / 0.2
Nav aids · Arafura Sea	1	1.3	1	1	new / 0
Quakes · Savu Sea	1	1.2	1	1	5.0× / 0.2
Other · Bass Strait	1	1	1	1	5.0× / 0.2
Other · Tyrrhenian Sea	1	0.8	0	—	1.7× / 0.6
Nav aids · Tasman Sea	1	0.6	0	—	0.8× / 1.2
Ordnance · Tyrrhenian Sea	1	0.6	0	—	2.5× / 0.4
Other · Mediterranean Sea - Eastern Basin	1	0.3	0	—	2.5× / 0.4
Nav aids · Irish Sea and St. George's Channel	1	0.2	0	—	0.4× / 2.4
Other · Indian Ocean	1	0.1	0	—	1.0× / 1
Nav aids · Solomon Sealong running	0	210	7	644	— / 0
Nav aids · Gulf of Suez	0	180	6	234	0.0× / 0.2
Surveys · Baffin Bay	0	90	3	59	— / 0
Nav aids · Laccadive Sea	0	90	3	212	0.0× / 0.2
Wrecks · North Sea	0	90	3	324	0.0× / 0.6
Nav aids · Bay of Bengal	0	88.5	2	212	0.0× / 0.4
Nav aids · Red Sea	0	88.5	2	355	0.0× / 0.2
Exercises · Aegean Sea	0	60	2	334	0.0× / 2.6
Wrecks · Baltic Sealong running	0	60	2	1,066	— / 0
Surveys · North Sea	0	60	2	338	0.0× / 4
Nav aids · Persian Gulflong running	0	60	2	726	0.0× / 2
War risk · Persian Gulflong running	0	60	2	667	— / 0
Nav aids · Tyrrhenian Sea	0	60	2	45	0.0× / 3.6
Nav aids · Arabian Sea	0	58.5	1	191	0.0× / 0.2
Nav aids · Japan Sea	0	42	1	44	0.0× / 0.4
Nav aids · Mediterranean Sea - Eastern Basin	0	37.4	1	136	0.0× / 1
Derelicts · North Atlantic Oceanlong running	0	36	1	423	0.0× / 5
Incidents · Arabian Sea	0	31.1	0	—	0.0× / 0.6
Wrecks · Arabian Sea	0	30	1	354	0.0× / 0.2
Surveys · Balearic (Iberian Sea)	0	30	1	129	— / 0
Other · Black Sea	0	30	1	263	— / 0
Towing · Black Sea	0	30	1	51	— / 0
Other · Coral Sea	0	30	1	54	0.0× / 0.2
Wrecks · English Channellong running	0	30	1	773	0.0× / 0.6
Other · Greenland Sealong running	0	30	1	1,194	— / 0
Surveys · Greenland Sea	0	30	1	277	— / 0
Nav aids · Gulf of Aqaba	0	30	1	34	— / 0
Surveys · Gulf of Suez	0	30	1	45	0.0× / 0.4
Restricted · Indian Ocean	0	30	1	173	— / 0
Wrecks · Japan Sea	0	30	1	305	— / 0
Wrecks · Java Sea	0	30	1	206	— / 0
Wrecks · Kattegatlong running	0	30	1	1,014	— / 0
Other · Laccadive Sealong running	0	30	1	370	0.0× / 0.4
Incidents · Ligurian Sea	0	30	1	34	— / 0
Nav aids · Malacca Strait	0	30	1	300	— / 0
Incidents · Mozambique Channel	0	30	1	41	0.0× / 0.4
Wrecks · North Atlantic Ocean	0	30	1	360	— / 0
Cable ops · Persian Gulf	0	30	1	62	0.0× / 0.8
Surveys · Persian Gulf	0	30	1	174	0.0× / 0.4
Nav aids · Savu Sealong running	0	30	1	635	— / 0
Other · Sea of Marmara	0	30	1	32	— / 0
Ordnance · Sea of Okhotsk	0	30	1	53	— / 0
Other · Sea of Okhotsk	0	30	1	262	— / 0
Wrecks · Skagerraklong running	0	30	1	1,117	0.0× / 0.2
Nav aids · South China Sea	0	30	1	165	— / 0
Other · South China Sea	0	30	1	113	0.0× / 0.4
Nav aids · Southern Ocean	0	30	1	65	0.0× / 0.2
Wrecks · Sulu Sea	0	30	1	142	— / 0
Incidents · Adriatic Sea	0	28.5	0	—	0.0× / 0.2
Incidents · Timor Sea	0	28.5	0	—	0.0× / 0.2
Derelicts · Tyrrhenian Sea	0	28.5	0	—	— / 0
Other · English Channel	0	27.7	0	—	0.0× / 0.4
Surveys · Baltic Sea	0	26.7	0	—	— / 0
Surveys · Adriatic Sea	0	15	0	—	— / 0
Other · South Pacific Ocean	0	13.5	0	—	0.0× / 0.4
Surveys · Gulf of Guinea	0	13.4	0	—	0.0× / 0.2
Cable ops · South China Sea	0	13	0	—	0.0× / 0.8
Cable ops · Great Australian Bight	0	11.1	0	—	— / 0
Spills · Southern Ocean	0	11	0	—	— / 0
Spills · The Coastal Waters of Southeast Alaska and British Columbia	0	11	0	—	0.0× / 0.2
Containers · Caribbean Sea	0	6	0	—	— / 0
Cable ops · Aegean Sea	0	4	0	—	0.0× / 0.2
Restricted · North Atlantic Ocean	0	3.6	0	—	— / 0
Nav aids · Mediterranean Sea - Western Basin	0	2.7	0	—	0.0× / 0.8
Quakes · Southern Ocean	0	1.3	0	—	0.0× / 0.8

Cite: seahazards.com Sea Ledger, 2003-11, retrieved 2026-09-03

Not for navigation. Warning-days = days each warning was in force within the month, summed. Only warnings we display are counted; the ratio compares warnings issued with the mean of the reference months.