Sea Ledger, January 2003

2003-01-01 to 2003-01-31 · archive

issued: 373
warning-days in force: 5,490
in force at month end: 189
sea × type cells: 180

baseline: same month, previous 5 years (2002-01, 2001-01, 2000-01, 1999-01, 1998-01)

By type

type	issued	warning-days	in force at end
Exercises	76	581.1	19
Incidents	63	1,322.9	40
Nav aids	57	1,408.2	46
Cable ops	40	321.1	15
Quakes	33	100.2	0
Debris	17	59.7	1
Other	16	445.6	16
Derelicts	14	94.1	4
Ordnance	9	128.4	6
Spills	9	130.5	3
Surveys	8	204	8
Icebergs	8	44.8	2
Missiles	7	63.1	3
Wrecks	7	479.6	17
Containers	7	30.1	5
Structures	1	14.1	1
Mines	1	0.4	1
War risk	0	62	2

By sea and type · 180 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	20	45.5	2	34	0.6× / 35
Exercises · North Atlantic Oceansurge	17	75	3	35	3.9× / 4.4
Exercises · Laccadive Seanew	11	68.1	2	35	new / 0
Incidents · North Atlantic Oceansurge	11	52.8	1	62	2.8× / 4
Nav aids · North Sealong running	10	186.9	6	556	1.5× / 6.8
Quakes · North Pacific Ocean	10	30	0	—	1.3× / 8
Exercises · Bay of Bengalsurge	9	54	2	34	4.5× / 2
Incidents · Philippine Seasurge	8	251.5	6	74	4.0× / 2
Incidents · South Pacific Oceansurge	8	73.6	4	46	3.1× / 2.6
Cable ops · North Atlantic Ocean	8	51.7	3	132	1.7× / 4.6
Quakes · South Pacific Ocean	7	21	0	—	0.5× / 13.8
Incidents · South Atlantic Ocean	6	87.2	5	34	1.3× / 4.8
Missiles · North Pacific Ocean	6	62	2	35	1.4× / 4.2
Exercises · Black Seasurge	6	38.9	0	—	15× / 0.4
Debris · English Channelsurge	6	5.5	0	—	30× / 0.2
Incidents · North Pacific Ocean	5	371.3	10	72	0.9× / 5.4
Incidents · South China Sea	5	163.1	6	72	1.9× / 2.6
Nav aids · Indian Oceansurge	5	43.9	2	28	8.3× / 0.6
Incidents · Ionian Seasurge	5	31.6	2	20	25× / 0.2
Icebergs · Southern Ocean	5	24.5	2	25	1.9× / 2.6
Debris · Gulf of Mexiconew	5	24.3	1	18	new / 0
Debris · North Atlantic Oceansurge	5	22.6	0	—	5.0× / 1
Nav aids · Celtic Sea	5	14.4	0	—	1.3× / 4
Nav aids · South Atlantic Ocean	4	140.7	4	210	0.9× / 4.2
Wrecks · North Seanewlong running	4	65.4	3	589	new / 0
Spills · North Pacific Oceansurge	4	56	1	30	2.9× / 1.4
Nav aids · Irish Sea and St. George's Channellong running	4	35.1	2	1,003	1.8× / 2.2
Cable ops · North Sea	4	32.5	2	26	1.4× / 2.8
Exercises · Mediterranean Sea - Western Basin	4	25.7	1	21	1.5× / 2.6
Exercises · Arabian Seasurge	4	12.3	1	28	3.3× / 1.2
Quakes · Solomon Seasurge	4	12	0	—	2.9× / 1.4
Nav aids · Mediterranean Sea - Western Basinsurge	3	101.4	3	99	2.1× / 1.4
Other · Mediterranean Sea - Eastern Basinsurge	3	66.8	1	32	15× / 0.2
Exercises · Mediterranean Sea - Eastern Basinsurge	3	63.8	0	—	7.5× / 0.4
Nav aids · English Channel	3	48	2	27	0.8× / 3.6
Spills · North Atlantic Ocean	3	45.5	1	72	1.7× / 1.8
Derelicts · North Atlantic Oceansurge	3	40.3	2	120	2.5× / 1.2
Incidents · Coral Sea	3	34.8	0	—	1.4× / 2.2
Exercises · North Pacific Ocean	3	23.2	0	—	0.7× / 4.6
Derelicts · North Pacific Oceansurge	3	18.8	0	—	5.0× / 0.6
Incidents · Mediterranean Sea - Eastern Basinsurge	3	18.1	0	—	2.1× / 1.4
Derelicts · Caribbean Seanew	3	13.2	0	—	new / 0
Quakes · Indian Ocean	3	9	0	—	0.8× / 4
Ordnance · Philippine Seanew	3	8.5	1	7	new / 0
Exercises · Gulf of Mexicosurge	3	4.2	0	—	5.0× / 0.6
Containers · Celtic Seanew	3	3.9	3	2	new / 0
Nav aids · South Pacific Ocean	2	132.6	3	120	1.0× / 2
Nav aids · Persian Gulflong running	2	106	4	423	1.4× / 1.4
Incidents · Indian Ocean	2	72.2	1	75	0.7× / 3
Nav aids · Coral Sealong running	2	64.7	2	1,016	0.6× / 3.2
Other · Japan Sea	2	63.2	2	34	2.5× / 0.8
Surveys · Mediterranean Sea - Eastern Basin	2	40.1	2	28	2.5× / 0.8
Nav aids · North Atlantic Ocean	2	33.3	1	42	0.4× / 4.6
Cable ops · Gulf of Suez	2	31	2	16	10× / 0.2
Spills · Gulf of Mexico	2	29	1	32	0.5× / 4
Exercises · Tyrrhenian Sea	2	28.7	1	28	0.8× / 2.6
Nav aids · Tasman Sea	2	28.3	1	27	5.0× / 0.4
Exercises · South Pacific Ocean	2	27	1	31	2.0× / 1
Containers · North Atlantic Ocean	2	18.6	1	31	1.0× / 2
Other · Irish Sea and St. George's Channel	2	15.3	1	23	10× / 0.2
Icebergs · South Pacific Ocean	2	13.4	0	—	10× / 0.2
Nav aids · Bay of Bengal	2	11	2	7	3.3× / 0.6
Derelicts · South Pacific Ocean	2	9.8	0	—	2.0× / 1
Quakes · South China Sea	2	6	0	—	5.0× / 0.4
Exercises · Indian Oceannew	2	5.9	0	—	new / 0
Ordnance · Greenland Seanew	2	5.5	0	—	new / 0
Exercises · Japan Seanew	2	3.9	2	2	new / 0
Other · North Atlantic Ocean	2	2.3	1	22	3.3× / 0.6
Nav aids · Tyrrhenian Sea	1	123.4	2	268	0.4× / 2.4
Incidents · Adriatic Sea	1	96.1	3	54	0.8× / 1.2
Exercises · Aegean Sea	1	90.5	3	354	0.2× / 5.2
Nav aids · Red Sea	1	52.5	2	52	new / 0
Nav aids · Arabian Sea	1	35.1	1	45	5.0× / 0.2
Exercises · Malacca Strait	1	33.3	1	35	5.0× / 0.2
Other · Yellow Sea	1	33.1	1	34	2.5× / 0.4
Ordnance · Indian Oceanlong running	1	32.6	2	365	5.0× / 0.2
Nav aids · Ionian Sea	1	29.5	1	234	5.0× / 0.2
Surveys · Gulf of Guinea	1	23.4	0	—	new / 0
Incidents · Eastern China Sea	1	22.8	0	—	5.0× / 0.2
Nav aids · North Pacific Ocean	1	22	1	21	5.0× / 0.2
Nav aids · Southern Ocean	1	21.6	1	70	5.0× / 0.2
Other · Tyrrhenian Sea	1	21.2	1	21	5.0× / 0.2
Nav aids · Alboran Sea	1	20.2	1	33	new / 0
Cable ops · Celtic Sea	1	18.3	0	—	0.2× / 6.4
Wrecks · Mediterranean Sea - Eastern Basin	1	18.3	1	18	new / 0
Other · Sea of Okhotsk	1	16.5	1	16	new / 0
Cable ops · Arabian Sea	1	16.4	1	16	1.7× / 0.6
Surveys · Sea of Marmara	1	14.5	1	14	new / 0
Structures · Mediterranean Sea - Eastern Basin	1	14.1	1	14	new / 0
Other · Adriatic Sea	1	13.4	1	13	new / 0
Nav aids · Mediterranean Sea - Eastern Basin	1	12.5	0	—	1.3× / 0.8
Ordnance · Gulf of Mexico	1	12.4	0	—	2.5× / 0.4
Surveys · Indian Ocean	1	11.8	0	—	2.5× / 0.4
Other · Southern Ocean	1	11.4	1	11	5.0× / 0.2
Cable ops · South Pacific Ocean	1	10.9	1	10	1.3× / 0.8
Surveys · Gulf of Mexico	1	9.6	1	9	new / 0
Cable ops · Aegean Sea	1	9.3	0	—	2.5× / 0.4
Nav aids · Japan Sea	1	8.4	0	—	2.5× / 0.4
Exercises · Persian Gulf	1	7.7	1	7	new / 0
Surveys · South Atlantic Ocean	1	7.5	1	48	0.3× / 3.4
Exercises · Red Sea	1	7.2	0	—	new / 0
Icebergs · South Atlantic Ocean	1	6.9	0	—	0.5× / 2
Ordnance · Gulf of Oman	1	6.7	0	—	new / 0
Containers · Mediterranean Sea - Western Basin	1	6.4	0	—	new / 0
Debris · Mediterranean Sea - Western Basin	1	6.4	0	—	5.0× / 0.2
Nav aids · Inner Seas off the West Coast of Scotland	1	5	1	5	0.4× / 2.8
Incidents · Arafura Sea	1	4.8	1	4	5.0× / 0.2
Derelicts · Bay of Bengal	1	4.7	1	4	5.0× / 0.2
Quakes · Celebes Sea	1	4.2	0	—	new / 0
Surveys · North Atlantic Ocean	1	4.1	0	—	1.3× / 0.8
Exercises · Adriatic Sea	1	4	0	—	0.3× / 3.4
Wrecks · Yellow Sea	1	3.9	0	—	new / 0
Exercises · Ionian Sea	1	3.3	0	—	2.5× / 0.4
Other · Ionian Sea	1	3.1	0	—	5.0× / 0.2
Quakes · Flores Sea	1	3	0	—	2.5× / 0.4
Quakes · Malacca Strait	1	3	0	—	new / 0
Quakes · Molukka Sea	1	3	0	—	1.7× / 0.6
Quakes · Philippine Sea	1	3	0	—	0.3× / 3
Quakes · Savu Sea	1	3	0	—	new / 0
Quakes · South Atlantic Ocean	1	3	0	—	0.6× / 1.8
Wrecks · Japan Sea	1	2.5	1	2	new / 0
Exercises · Sulu Sea	1	2.5	1	2	new / 0
Exercises · Andaman or Burma Sea	1	1.9	0	—	new / 0
Cable ops · South China Sea	1	1.9	1	1	0.8× / 1.2
Other · English Channel	1	1.7	0	—	1.7× / 0.6
Cable ops · Singapore Strait	1	1.4	1	1	new / 0
Derelicts · Tasman Sea	1	1.4	1	1	5.0× / 0.2
Containers · Tyrrhenian Sea	1	1.2	1	1	5.0× / 0.2
Missiles · South Pacific Ocean	1	1.1	1	1	1.3× / 0.8
Incidents · Bismarck Sea	1	1	0	—	new / 0
Derelicts · Indian Ocean	1	0.9	0	—	2.5× / 0.4
Ordnance · Arabian Sea	1	0.7	1	0	1.7× / 0.6
Nav aids · Timor Sea	1	0.7	0	—	2.5× / 0.4
Mines · Inner Seas off the West Coast of Scotland	1	0.4	1	0	new / 0
Incidents · Aegean Sea	1	0.2	0	—	new / 0
Incidents · Tasman Sea	1	0.2	0	—	0.5× / 2
Incidents · Bay of Biscay	1	0.1	0	—	new / 0
Wrecks · Baltic Sealong running	0	62	2	763	— / 0
Cable ops · Bay of Bengal	0	62	2	91	— / 0
War risk · Persian Gulf	0	62	2	364	— / 0
Wrecks · South China Sealong running	0	62	2	491	0.0× / 0.2
Wrecks · English Channellong running	0	38	1	470	0.0× / 0.2
Wrecks · Tyrrhenian Sealong running	0	34.5	1	722	— / 0
Wrecks · Arabian Sea	0	31	1	51	— / 0
Other · Bass Strait	0	31	1	301	0.0× / 0.4
Nav aids · Eastern China Sealong running	0	31	1	830	— / 0
Nav aids · Great Australian Bight	0	31	1	44	0.0× / 0.6
Other · Greenland Sealong running	0	31	1	891	— / 0
Other · Gulf of Guinea	0	31	1	124	— / 0
Surveys · Gulf of Oman	0	31	1	197	— / 0
Wrecks · Kattegatlong running	0	31	1	711	— / 0
Other · Laccadive Sea	0	31	1	67	0.0× / 0.2
Ordnance · Ligurian Sea	0	31	1	348	0.0× / 0.2
Wrecks · Makassar Strait	0	31	1	234	— / 0
Other · Malacca Strait	0	31	1	127	— / 0
Surveys · Mediterranean Sea - Western Basin	0	31	1	283	0.0× / 2.2
Wrecks · North Atlantic Ocean	0	31	1	57	0.0× / 0.2
Ordnance · North Pacific Oceanlong running	0	31	1	477	0.0× / 1.4
Surveys · North Sea	0	31	1	35	0.0× / 1.2
Incidents · Persian Gulf	0	31	1	284	— / 0
Nav aids · Savu Sea	0	31	1	332	— / 0
Wrecks · Skagerraklong running	0	31	1	814	— / 0
Nav aids · Solomon Sea	0	31	1	341	0.0× / 0.4
Wrecks · South Pacific Ocean	0	31	1	44	0.0× / 0.2
Other · Tasman Sea	0	31	1	44	— / 0
Cable ops · Black Sea	0	22.7	0	—	0.0× / 0.2
Cable ops · Gulf of Aqaba	0	14	0	—	— / 0
Other · Gulf of Mexico	0	9	0	—	0.0× / 0.2
Derelicts · South Atlantic Ocean	0	5	0	—	0.0× / 0.4
Incidents · Arabian Sea	0	3.5	0	—	0.0× / 0.8
Wrecks · Celtic Sea	0	3.5	0	—	— / 0
Wrecks · Irish Sea and St. George's Channel	0	3.5	0	—	0.0× / 0.2
Incidents · Japan Sea	0	3.5	0	—	0.0× / 0.2
Nav aids · Malacca Strait	0	3.5	0	—	— / 0
Nav aids · Skagerrak	0	3.5	0	—	— / 0
Incidents · Sulu Sea	0	3.5	0	—	— / 0
Cable ops · Tasman Sea	0	3.5	0	—	0.0× / 0.8
Other · South Pacific Ocean	0	2.6	0	—	0.0× / 1
Debris · Celtic Sea	0	0.9	0	—	0.0× / 0.2
Cable ops · Sea of Azov	0	0	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2003-01, 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.