Sea Ledger, March 2003

2003-03-01 to 2003-03-31 · archive

issued: 357
warning-days in force: 5,504
in force at month end: 176
sea × type cells: 183

baseline: same month, previous 5 years (2002-03, 2001-03, 2000-03, 1999-03, 1998-03)

By type

type	issued	warning-days	in force at end
Exercises	64	544.3	13
Incidents	54	1,202.9	36
Quakes	38	108.5	4
Cable ops	33	397.2	18
Other	31	580.9	17
Nav aids	31	1,047.5	35
Derelicts	29	134.5	5
Surveys	22	476.2	15
Icebergs	15	76.2	2
Debris	8	36	0
Ordnance	7	127.2	3
Restricted	7	54.3	5
Missiles	5	62	2
Wrecks	5	509.4	17
Containers	4	18.5	0
Spills	2	53	0
Mines	1	6.2	1
Towing	1	7.2	1
War risk	0	62	2

By sea and type · 183 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	18	57.7	3	38	0.5× / 38.4
Exercises · Black Seasurge	12	94.9	3	32	12× / 1
Incidents · Mediterranean Sea - Eastern Basinsurge	11	49.9	2	43	7.9× / 1.4
Other · North Pacific Oceansurge	11	25.8	2	31	6.1× / 1.8
Exercises · Laccadive Seasurge	10	66.2	1	34	13× / 0.8
Derelicts · South Atlantic Oceansurge	10	15.7	0	—	13× / 0.8
Incidents · South Pacific Oceansurge	9	111.1	5	61	2.5× / 3.6
Exercises · Bay of Bengalsurge	9	37	0	—	5.6× / 1.6
Quakes · South Pacific Ocean	9	27	0	—	1.3× / 7.2
Incidents · North Pacific Ocean	7	338.1	9	74	1.2× / 5.8
Exercises · North Atlantic Ocean	7	56.6	2	38	1.8× / 4
Quakes · North Pacific Ocean	7	21	0	—	1.4× / 5.2
Incidents · Indian Oceansurge	6	79.6	4	21	2.3× / 2.6
Restricted · Mediterranean Sea - Eastern Basinnew	6	51.9	4	11	new / 0
Exercises · Philippine Seasurge	6	24.5	0	—	30× / 0.2
Icebergs · North Atlantic Oceansurge	6	6	0	—	3.8× / 1.6
Incidents · Philippine Sea	5	168	4	73	1.1× / 4.6
Missiles · North Pacific Ocean	5	62	2	34	1.1× / 4.4
Nav aids · Coral Seasurgelong running	5	53.9	2	1,075	3.1× / 1.6
Other · Mediterranean Sea - Eastern Basinsurge	5	41.9	0	—	25× / 0.2
Icebergs · South Atlantic Ocean	5	37.9	1	34	1.9× / 2.6
Incidents · Coral Seasurge	5	30.3	1	30	2.8× / 1.8
Nav aids · Inner Seas off the West Coast of Scotland	5	10.3	0	—	1.9× / 2.6
Nav aids · Mediterranean Sea - Western Basinsurge	4	48.4	3	158	20× / 0.2
Other · North Atlantic Oceansurge	4	36.4	1	28	2.5× / 1.6
Surveys · South Atlantic Ocean	4	35.4	0	—	1.4× / 2.8
Icebergs · Southern Oceansurge	4	32.3	1	34	5.0× / 0.8
Derelicts · South Pacific Oceansurge	4	15.3	0	—	10× / 0.4
Exercises · Arabian Seasurge	4	10.2	0	—	10× / 0.4
Incidents · South China Sea	3	143.5	4	65	1.5× / 2
Nav aids · English Channel	3	73.6	2	84	0.9× / 3.2
Nav aids · Tyrrhenian Sea	3	65.1	1	327	1.7× / 1.8
Surveys · North Sea	3	53.9	1	94	1.9× / 1.6
Cable ops · Celtic Sea	3	26.2	1	19	1.0× / 3
Incidents · Tasman Sea	3	22.4	1	22	1.9× / 1.6
Containers · North Atlantic Oceansurge	3	15.6	0	—	7.5× / 0.4
Derelicts · Persian Gulfsurge	3	12.7	3	6	15× / 0.2
Exercises · North Pacific Ocean	3	11.3	0	—	0.6× / 5.2
Debris · Celtic Seanew	3	10.3	0	—	new / 0
Quakes · South Atlantic Oceansurge	3	9	0	—	2.1× / 1.4
Cable ops · English Channel	3	7.5	0	—	1.0× / 3
Quakes · Solomon Seasurge	3	7	1	12	3.0× / 1
Quakes · Banda Seasurge	3	6.2	2	22	2.1× / 1.4
Nav aids · South Atlantic Ocean	2	80.3	2	269	0.4× / 5.2
Cable ops · Arabian Sea	2	67.2	3	75	1.1× / 1.8
Other · Japan Sea	2	65.1	2	33	2.0× / 1
Incidents · North Atlantic Ocean	2	58	2	72	0.4× / 4.6
Surveys · Mediterranean Sea - Eastern Basin	2	57.8	1	70	1.3× / 1.6
Cable ops · North Atlantic Ocean	2	51.3	3	191	0.4× / 4.8
Nav aids · Solomon Seanewlong running	2	50.7	3	400	new / 0
Derelicts · North Atlantic Ocean	2	46	1	179	1.4× / 1.4
Cable ops · Bay of Bengal	2	40.5	3	41	2.0× / 1
Nav aids · Irish Sea and St. George's Channellong running	2	35.2	1	1,062	0.9× / 2.2
Nav aids · Mozambique Channel	2	32.2	2	20	10× / 0.2
Exercises · Mediterranean Sea - Western Basin	2	31.8	1	28	0.8× / 2.6
Exercises · Tyrrhenian Sea	2	31.7	1	28	1.0× / 2
Surveys · Gulf of Guineanew	2	28.6	1	29	new / 0
Surveys · Indian Ocean	2	16.1	1	22	5.0× / 0.4
Surveys · English Channel	2	13.8	2	13	0.8× / 2.6
Ordnance · Japan Sea	2	13.7	0	—	2.5× / 0.8
Derelicts · North Pacific Ocean	2	12.9	0	—	3.3× / 0.6
Ordnance · Persian Gulf	2	10.9	0	—	1.4× / 1.4
Derelicts · Celtic Seanew	2	6.6	0	—	new / 0
Surveys · Celtic Sea	2	6.5	0	—	0.3× / 6
Quakes · Molukka Sea	2	6	0	—	3.3× / 0.6
Wrecks · North Sealong running	1	93	3	648	2.5× / 0.4
Exercises · Aegean Sea	1	67.3	3	90	0.3× / 3.2
Wrecks · North Atlantic Ocean	1	62.4	2	116	new / 0
Nav aids · North Sea	1	45.3	1	132	0.2× / 6.2
Exercises · Mediterranean Sea - Eastern Basin	1	36.9	1	32	0.5× / 2.2
Other · Sea of Marmara	1	36	1	53	5.0× / 0.2
Surveys · Mediterranean Sea - Western Basin	1	34.5	2	342	1.7× / 0.6
Incidents · South Atlantic Ocean	1	33.4	1	64	0.2× / 4.6
Other · Yellow Sea	1	32	1	33	2.5× / 0.4
Other · Sea of Okhotsk	1	31	1	75	new / 0
Surveys · Adriatic Sea	1	30.2	1	30	2.5× / 0.4
Spills · North Atlantic Ocean	1	29	0	—	0.4× / 2.6
Wrecks · Malacca Strait	1	28.6	1	28	new / 0
Surveys · Black Sea	1	27	1	26	new / 0
Spills · Gulf of Mexico	1	24	0	—	0.5× / 2
Cable ops · Indian Ocean	1	20.4	1	20	2.5× / 0.4
Other · Black Sea	1	19.9	1	19	5.0× / 0.2
Other · Tasman Sea	1	16.8	0	—	new / 0
Other · Red Sea	1	14	0	—	new / 0
Cable ops · Ionian Sea	1	12	1	11	new / 0
Other · Gulf of Aqaba	1	11.4	1	11	new / 0
Exercises · Persian Gulf	1	11	0	—	5.0× / 0.2
Towing · North Atlantic Ocean	1	7.2	1	7	new / 0
Debris · South Pacific Ocean	1	6.6	0	—	5.0× / 0.2
Debris · North Atlantic Ocean	1	6.4	0	—	1.7× / 0.6
Cable ops · Tyrrhenian Sea	1	6.4	1	6	5.0× / 0.2
Debris · Mediterranean Sea - Eastern Basin	1	6.3	0	—	new / 0
Derelicts · Mediterranean Sea - Eastern Basin	1	6.3	0	—	5.0× / 0.2
Nav aids · Bay of Biscay	1	6.2	1	6	new / 0
Mines · Celtic Sea	1	6.2	1	6	new / 0
Debris · Persian Gulf	1	6.2	0	—	new / 0
Exercises · South Pacific Ocean	1	6.2	0	—	0.6× / 1.6
Surveys · Persian Gulf	1	6.1	0	—	new / 0
Derelicts · Indian Ocean	1	5.9	0	—	new / 0
Exercises · Japan Sea	1	5.4	0	—	1.0× / 1
Ordnance · North Sea	1	5.1	0	—	new / 0
Other · South Atlantic Ocean	1	4.9	0	—	0.8× / 1.2
Ordnance · Philippine Sea	1	4.1	0	—	1.0× / 1
Surveys · Gulf of Mexico	1	3.7	0	—	new / 0
Derelicts · Mediterranean Sea - Western Basin	1	3.5	0	—	new / 0
Derelicts · Gulf of Mexico	1	3.3	1	3	1.7× / 0.6
Incidents · Bass Strait	1	3.1	0	—	2.5× / 0.4
Wrecks · Persian Gulf	1	3.1	1	3	new / 0
Quakes · Arafura Sea	1	3	0	—	new / 0
Quakes · Bay of Bengal	1	3	0	—	new / 0
Quakes · Ceram Sea	1	3	0	—	2.5× / 0.4
Quakes · Coral Sea	1	3	0	—	1.3× / 0.8
Quakes · Flores Sea	1	3	0	—	new / 0
Quakes · Gulf of California	1	3	0	—	5.0× / 0.2
Quakes · Indian Ocean	1	3	0	—	0.4× / 2.6
Quakes · North Atlantic Ocean	1	3	0	—	1.7× / 0.6
Quakes · Philippine Sea	1	3	0	—	0.8× / 1.2
Quakes · Southern Ocean	1	3	0	—	0.6× / 1.8
Containers · South Atlantic Ocean	1	2.9	0	—	5.0× / 0.2
Restricted · Japan Sea	1	2.4	1	2	new / 0
Quakes · Adriatic Sea	1	2.3	1	2	new / 0
Exercises · Ionian Sea	1	2.2	0	—	1.3× / 0.8
Incidents · Celtic Sea	1	2	0	—	2.5× / 0.4
Nav aids · Gulf of Mexico	1	2	0	—	2.5× / 0.4
Exercises · Andaman or Burma Sea	1	1.8	0	—	new / 0
Derelicts · Mozambique Channel	1	1.7	0	—	new / 0
Exercises · Bering Sea	1	1.2	0	—	new / 0
Derelicts · Tasman Sea	1	0.6	0	—	5.0× / 0.2
Wrecks · Mediterranean Sea - Eastern Basin	1	0.5	0	—	new / 0
Ordnance · Arabian Sea	1	0.4	0	—	5.0× / 0.2
Exercises · Gulf of Mexico	1	0.4	1	0	1.0× / 1
Debris · North Pacific Ocean	1	0.2	0	—	new / 0
Other · South China Sea	1	0.2	0	—	1.3× / 0.8
Surveys · Greenland Sea	0	93	3	33	— / 0
Nav aids · Persian Gulflong running	0	93	3	482	0.0× / 0.6
Nav aids · South Pacific Ocean	0	93	3	179	0.0× / 1.4
Cable ops · Gulf of Suez	0	77	1	35	— / 0
Wrecks · Baltic Sealong running	0	62	2	822	— / 0
Nav aids · Bay of Bengal	0	62	2	66	0.0× / 0.2
War risk · Persian Gulflong running	0	62	2	423	— / 0
Wrecks · South China Sealong running	0	62	2	550	0.0× / 0.2
Nav aids · Red Sea	0	35.5	1	111	0.0× / 0.2
Nav aids · North Atlantic Ocean	0	34.7	1	101	0.0× / 4.8
Nav aids · Arabian Sea	0	31	1	88	— / 0
Surveys · Arabian Sea	0	31	1	31	0.0× / 0.2
Wrecks · Arabian Sea	0	31	1	110	— / 0
Other · Bass Strait	0	31	1	360	0.0× / 0.6
Nav aids · Eastern China Sealong running	0	31	1	889	0.0× / 0.2
Wrecks · English Channellong running	0	31	1	529	0.0× / 0.2
Nav aids · Great Australian Bight	0	31	1	41	0.0× / 0.4
Other · Greenland Sealong running	0	31	1	950	— / 0
Incidents · Gulf of Guinea	0	31	1	41	— / 0
Surveys · Gulf of Oman	0	31	1	256	— / 0
Ordnance · Indian Oceanlong running	0	31	1	424	— / 0
Nav aids · Ionian Sea	0	31	1	79	— / 0
Wrecks · Japan Sea	0	31	1	61	— / 0
Wrecks · Kattegatlong running	0	31	1	770	0.0× / 0.2
Other · Laccadive Sea	0	31	1	126	— / 0
Ordnance · Ligurian Sealong running	0	31	1	407	— / 0
Nav aids · Malacca Strait	0	31	1	56	0.0× / 0.2
Other · Malacca Strait	0	31	1	186	— / 0
Incidents · Mediterranean Sea - Western Basin	0	31	1	31	— / 0
Ordnance · North Pacific Oceanlong running	0	31	1	536	0.0× / 0.6
Other · North Sea	0	31	1	38	0.0× / 1.4
Other · Persian Gulf	0	31	1	55	0.0× / 0.4
Incidents · Red Sea	0	31	1	36	— / 0
Nav aids · Savu Sealong running	0	31	1	391	0.0× / 0.2
Wrecks · Skagerraklong running	0	31	1	873	— / 0
Cable ops · South China Sea	0	31	1	60	0.0× / 1.6
Nav aids · Southern Ocean	0	31	1	72	— / 0
Other · Tyrrhenian Sea	0	31	1	80	0.0× / 0.2
Wrecks · Tyrrhenian Sealong running	0	31	1	509	— / 0
Exercises · Malacca Strait	0	30.7	0	—	0.0× / 0.8
Incidents · Gulf of Aden	0	28.5	0	—	0.0× / 0.2
Other · Southern Ocean	0	28.5	0	—	— / 0
Incidents · Adriatic Sea	0	26	0	—	0.0× / 0.4
Exercises · Alboran Sea	0	17	0	—	0.0× / 0.2
Wrecks · Makassar Strait	0	11.8	0	—	— / 0
Incidents · Ionian Sea	0	11.5	0	—	0.0× / 0.2
Nav aids · Indian Ocean	0	9.1	0	—	0.0× / 1.4
Surveys · North Atlantic Ocean	0	7.6	0	—	0.0× / 1.2
Incidents · Arabian Sea	0	4.5	0	—	0.0× / 0.8
Derelicts · Ionian Sea	0	4	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2003-03, 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.