Sea Ledger, July 2003

2003-07-01 to 2003-07-31 · archive

issued: 338
warning-days in force: 5,563
in force at month end: 164
sea × type cells: 198

baseline: same month, previous 5 years (2002-07, 2001-07, 2000-07, 1999-07, 1998-07)

By type

type	issued	warning-days	in force at end
Exercises	60	490.5	15
Incidents	59	1,014.6	27
Quakes	43	131	2
Nav aids	37	1,352.3	42
Cable ops	33	357.8	13
Derelicts	24	154.5	4
Other	23	489.9	13
Surveys	14	495.4	15
Icebergs	11	64.4	2
Spills	8	94	4
Ordnance	7	78.5	2
Missiles	6	62	2
Debris	5	31.5	0
Restricted	2	100.3	3
Wrecks	2	499.8	15
Containers	2	16.9	1
Towing	1	40.6	1
Structures	1	27.1	1
War risk	0	62	2

By sea and type · 198 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	15	66.2	3	78	0.5× / 29
Exercises · North Atlantic Ocean	11	64.5	2	34	1.7× / 6.4
Incidents · South Pacific Oceansurge	10	125.5	3	58	2.1× / 4.8
Exercises · Laccadive Seasurge	10	64.7	2	33	8.3× / 1.2
Other · North Atlantic Oceansurge	10	59	0	—	2.0× / 5
Incidents · Coral Seasurge	10	7.8	0	—	2.6× / 3.8
Quakes · North Pacific Oceansurge	9	29.6	0	—	2.3× / 4
Incidents · Philippine Sea	8	160	4	61	1.3× / 6.2
Nav aids · North Atlantic Ocean	8	72.9	2	113	1.9× / 4.2
Exercises · Japan Seasurge	8	42.3	1	22	8.0× / 1
Icebergs · South Atlantic Oceansurge	7	40.5	2	29	7.0× / 1
Missiles · North Pacific Ocean	6	62	2	35	1.4× / 4.2
Derelicts · South Pacific Oceansurge	6	47.2	1	30	7.5× / 0.8
Surveys · Mediterranean Sea - Eastern Basinsurge	6	43.2	2	59	4.3× / 1.4
Derelicts · South Atlantic Oceansurge	6	8.1	0	—	7.5× / 0.8
Incidents · South Atlantic Ocean	5	78	2	61	0.9× / 5.8
Incidents · North Atlantic Ocean	5	34.4	1	40	1.0× / 5
Exercises · North Pacific Ocean	5	28.5	3	21	0.7× / 6.8
Quakes · South Pacific Ocean	5	15	0	—	0.6× / 8
Incidents · North Pacific Ocean	4	176.6	4	74	0.5× / 8
Nav aids · South Atlantic Ocean	4	82.9	2	161	0.7× / 5.8
Spills · Gulf of Mexicosurge	4	51	2	44	2.0× / 2
Cable ops · Irish Sea and St. George's Channelsurge	4	40.8	1	45	4.0× / 1
Incidents · Indian Ocean	4	35.3	2	36	1.3× / 3
Quakes · Bismarck Seasurge	4	12.6	0	—	3.3× / 1.2
Quakes · Indian Oceansurge	4	12	0	—	2.2× / 1.8
Nav aids · Solomon Seanewlong running	3	121.4	5	522	new / 0
Nav aids · Gulf of Sueznew	3	99.6	4	112	new / 0
Exercises · Mediterranean Sea - Eastern Basin	3	46.2	1	34	1.9× / 1.6
Exercises · Black Seasurge	3	37.3	0	—	3.0× / 1
Spills · North Atlantic Ocean	3	35	1	16	1.9× / 1.6
Nav aids · North Sea	3	33.9	0	—	0.6× / 5
Incidents · Arafura Seasurge	3	19.2	0	—	15× / 0.2
Exercises · Bay of Bengalsurge	3	15.4	0	—	2.5× / 1.2
Derelicts · North Pacific Oceansurge	3	12.4	1	20	3.0× / 1
Cable ops · English Channelsurge	3	10.3	0	—	3.8× / 0.8
Quakes · Bay of Bengalnew	3	9	0	—	new / 0
Quakes · Coral Sea	3	9	0	—	1.5× / 2
Exercises · South Pacific Oceansurge	3	7.2	0	—	7.5× / 0.4
Nav aids · Irish Sea and St. George's Channelsurge	3	7.1	2	13	3.8× / 0.8
Nav aids · South Pacific Ocean	2	91.2	3	301	1.3× / 1.6
Other · Japan Sea	2	69	2	35	2.5× / 0.8
Incidents · Arabian Sea	2	46.5	1	50	1.7× / 1.2
Nav aids · Mediterranean Sea - Western Basin	2	36.6	0	—	5.0× / 0.4
Exercises · Malacca Strait	2	34	1	30	10× / 0.2
Nav aids · Andaman or Burma Seanew	2	31.1	2	16	new / 0
Incidents · Adriatic Seanew	2	27.2	1	27	new / 0
Exercises · Red Seanew	2	15.3	0	—	new / 0
Derelicts · Indian Oceannew	2	14.4	1	33	new / 0
Icebergs · Barentsz Seanew	2	13.2	0	—	new / 0
Ordnance · Norwegian Sea	2	12.5	0	—	10× / 0.2
Derelicts · Philippine Sea	2	8.8	0	—	10× / 0.2
Exercises · Arabian Sea	2	7.9	0	—	1.7× / 1.2
Other · North Sea	2	6.4	0	—	1.1× / 1.8
Quakes · Molukka Sea	2	6	0	—	10× / 0.2
Quakes · Solomon Sea	2	6	0	—	1.7× / 1.2
Exercises · Ionian Sea	2	4.7	0	—	0.9× / 2.2
Cable ops · Bay of Bengal	2	3.9	2	2	3.3× / 0.6
Quakes · Philippine Sea	2	3.6	1	30	0.4× / 5
Exercises · Philippine Seanew	2	0.8	1	3	new / 0
Incidents · South China Sea	1	127.2	3	69	0.4× / 2.4
Nav aids · Persian Gulflong running	1	98.8	2	604	1.0× / 1
Nav aids · Celtic Sea	1	95.1	3	111	0.4× / 2.8
Surveys · North Sea	1	59.4	2	216	0.2× / 5.8
Surveys · English Channel	1	57.6	2	122	0.3× / 3.8
Incidents · North Sea	1	52.6	2	42	new / 0
Surveys · Mediterranean Sea - Western Basinlong running	1	46.9	1	464	1.7× / 0.6
Other · Black Sea	1	42	1	141	new / 0
Cable ops · Arabian Sea	1	37.1	0	—	2.5× / 0.4
Derelicts · North Atlantic Ocean	1	36.6	1	301	0.6× / 1.8
Exercises · Indian Ocean	1	34	1	34	new / 0
Other · Yellow Sea	1	34	1	35	1.7× / 0.6
Nav aids · Inner Seas off the West Coast of Scotland	1	33.5	1	39	0.3× / 3.6
Nav aids · Bay of Bengal	1	33	1	90	new / 0
Towing · Sea of Okhotsk	1	30.6	1	30	5.0× / 0.2
Structures · North Sea	1	27.1	1	27	2.5× / 0.4
Cable ops · Gulf of Suez	1	24.6	1	24	new / 0
Wrecks · Sulu Sea	1	20.6	1	20	new / 0
Other · Sea of Marmara	1	19.6	1	19	5.0× / 0.2
Other · Celtic Sea	1	18.5	1	18	5.0× / 0.2
Other · Indian Ocean	1	16.6	1	16	5.0× / 0.2
Other · Tyrrhenian Sea	1	16.1	0	—	new / 0
Cable ops · Strait of Gibraltar	1	16	1	15	new / 0
Surveys · Ionian Sea	1	15.9	0	—	1.7× / 0.6
Surveys · South Atlantic Ocean	1	15.2	0	—	1.3× / 0.8
Nav aids · Mediterranean Sea - Eastern Basin	1	14.4	1	14	2.5× / 0.4
Nav aids · Tyrrhenian Sea	1	14.3	0	—	0.6× / 1.6
Cable ops · Mediterranean Sea - Western Basin	1	12.7	0	—	1.3× / 0.8
Cable ops · Black Sea	1	12.5	1	12	5.0× / 0.2
Cable ops · North Sea	1	12.4	0	—	0.2× / 5.8
Ordnance · Mediterranean Sea - Western Basin	1	11.8	0	—	2.5× / 0.4
Restricted · North Atlantic Ocean	1	10	1	9	new / 0
Ordnance · Persian Gulf	1	9.6	1	35	2.5× / 0.4
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	8	1	8	1.3× / 0.8
Surveys · Balearic (Iberian Sea)	1	7.6	1	7	new / 0
Derelicts · Arafura Sea	1	6.9	0	—	new / 0
Debris · North Atlantic Ocean	1	6.8	0	—	0.3× / 3.4
Icebergs · Indian Ocean	1	6.7	0	—	1.3× / 0.8
Derelicts · South China Sea	1	6.7	0	—	2.5× / 0.4
Debris · Tyrrhenian Sea	1	6.5	0	—	new / 0
Containers · Alboran Sea	1	6.4	0	—	new / 0
Debris · English Channel	1	6.4	0	—	5.0× / 0.2
Ordnance · North Atlantic Ocean	1	6.4	0	—	0.3× / 3.2
Other · Gulf of Mexico	1	6.2	0	—	5.0× / 0.2
Derelicts · Mediterranean Sea - Eastern Basin	1	6.2	0	—	0.6× / 1.6
Nav aids · Alboran Sea	1	6	1	6	new / 0
Debris · South Pacific Ocean	1	6	0	—	new / 0
Debris · Alboran Sea	1	5.8	0	—	new / 0
Exercises · South Atlantic Ocean	1	5.6	0	—	new / 0
Surveys · Tyrrhenian Sea	1	5.5	0	—	1.7× / 0.6
Ordnance · Gulf of Aden	1	5.3	0	—	new / 0
Exercises · Andaman or Burma Sea	1	4.9	0	—	new / 0
Cable ops · Celtic Sea	1	4.7	0	—	0.1× / 8.4
Containers · Bay of Bengal	1	4.5	1	4	new / 0
Icebergs · Southern Ocean	1	4	0	—	0.5× / 2
Restricted · North Pacific Ocean	1	3.8	0	—	new / 0
Wrecks · South Pacific Ocean	1	3.5	0	—	2.5× / 0.4
Quakes · Aegean Sea	1	3	0	—	5.0× / 0.2
Quakes · Barentsz Sea	1	3	0	—	new / 0
Quakes · Celebes Sea	1	3	0	—	5.0× / 0.2
Quakes · Eastern China Sea	1	3	0	—	new / 0
Quakes · Japan Sea	1	3	0	—	new / 0
Quakes · South Atlantic Ocean	1	3	0	—	0.8× / 1.2
Quakes · South China Sea	1	3	0	—	2.5× / 0.4
Quakes · Sulu Sea	1	3	0	—	5.0× / 0.2
Other · English Channel	1	2.8	0	—	5.0× / 0.2
Incidents · Laccadive Sea	1	2.8	1	2	5.0× / 0.2
Incidents · Gulf of Guinea	1	2.5	0	—	1.7× / 0.6
Surveys · North Atlantic Ocean	1	2.5	0	—	0.6× / 1.6
Cable ops · Sea of Okhotsk	1	2.5	1	2	new / 0
Exercises · Tyrrhenian Sea	1	2.5	1	2	0.7× / 1.4
Derelicts · Coral Sea	1	2.2	0	—	new / 0
Quakes · Southern Ocean	1	2.2	1	2	5.0× / 0.2
Cable ops · North Atlantic Ocean	1	2.1	1	128	0.1× / 10.4
Ordnance · North Sea	1	0.4	0	—	1.7× / 0.6
Other · South Pacific Ocean	1	0.2	0	—	2.5× / 0.4
Incidents · Bay of Bengal	1	0.1	0	—	new / 0
Incidents · Tasman Sea	1	0	0	—	1.0× / 1
Wrecks · North Sealong running	0	103.7	2	770	0.0× / 0.4
Surveys · Greenland Sea	0	93	3	155	— / 0
Nav aids · Coral Sea	0	87.5	2	130	0.0× / 2.2
Nav aids · Red Sea	0	75.3	2	233	— / 0
Exercises · Aegean Sea	0	62	2	212	0.0× / 0.6
Nav aids · Arabian Sea	0	62	2	69	0.0× / 0.6
Wrecks · Baltic Sealong running	0	62	2	944	0.0× / 0.2
Surveys · Gulf of Guinea	0	62	2	63	— / 0
War risk · Persian Gulflong running	0	62	2	545	— / 0
Cable ops · Eastern China Sea	0	50	0	—	0.0× / 1.8
Wrecks · Arabian Sea	0	31	1	232	0.0× / 0.4
Surveys · Baltic Sea	0	31	1	33	— / 0
Other · Bass Straitlong running	0	31	1	482	0.0× / 0.2
Wrecks · Bay of Bengal	0	31	1	49	0.0× / 0.4
Incidents · Celtic Sea	0	31	1	42	— / 0
Nav aids · English Channel	0	31	1	206	0.0× / 2.8
Wrecks · English Channellong running	0	31	1	651	0.0× / 0.2
Other · Greenland Sealong running	0	31	1	1,072	— / 0
Restricted · Indian Ocean	0	31	1	51	— / 0
Wrecks · Japan Sea	0	31	1	183	— / 0
Wrecks · Java Sea	0	31	1	84	— / 0
Wrecks · Kattegatlong running	0	31	1	892	— / 0
Nav aids · Laccadive Sea	0	31	1	90	— / 0
Other · Laccadive Sea	0	31	1	248	0.0× / 0.2
Ordnance · Ligurian Sealong running	0	31	1	529	— / 0
Nav aids · Malacca Strait	0	31	1	178	0.0× / 0.2
Other · Malacca Strait	0	31	1	308	— / 0
Incidents · Mediterranean Sea - Eastern Basin	0	31	1	45	0.0× / 1
Incidents · Mediterranean Sea - Western Basin	0	31	1	32	— / 0
Nav aids · Mozambique Channel	0	31	1	34	0.0× / 0.4
Wrecks · North Atlantic Ocean	0	31	1	238	0.0× / 0.4
Restricted · North Sea	0	31	1	35	— / 0
Cable ops · Persian Gulf	0	31	1	45	0.0× / 1.2
Other · Persian Gulf	0	31	1	177	— / 0
Surveys · Persian Gulf	0	31	1	52	0.0× / 0.2
Nav aids · Savu Sealong running	0	31	1	513	— / 0
Other · Sea of Okhotsk	0	31	1	140	— / 0
Wrecks · Skagerraklong running	0	31	1	995	— / 0
Cable ops · South China Sea	0	31	1	61	0.0× / 1.8
Nav aids · South China Sea	0	31	1	43	— / 0
Wrecks · South China Sealong running	0	31	1	545	0.0× / 0.6
Nav aids · Southern Ocean	0	31	1	194	— / 0
Wrecks · Southern Ocean	0	31	1	95	— / 0
Nav aids · Ionian Sea	0	25.4	0	—	0.0× / 0.2
Surveys · Sea of Okhotsk	0	24.6	0	—	0.0× / 0.6
Restricted · Bristol Channel	0	24.5	0	—	— / 0
Incidents · Eastern China Sea	0	18.5	0	—	0.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	0	13.5	0	—	0.0× / 0.8
Nav aids · Gulf of Aqaba	0	13.3	0	—	— / 0
Towing · Tyrrhenian Sea	0	10	0	—	— / 0
Exercises · South China Sea	0	9	0	—	0.0× / 0.4
Incidents · Andaman or Burma Sea	0	7.4	0	—	— / 0
Containers · Arabian Sea	0	6	0	—	0.0× / 0.2
Derelicts · Celtic Sea	0	5	0	—	0.0× / 0.8
Exercises · Sea of Azov	0	3.7	0	—	— / 0
Quakes · North Atlantic Ocean	0	2	0	—	0.0× / 0.8
Ordnance · Philippine Sea	0	1.5	0	—	0.0× / 0.2
Derelicts · Arabian Sea	0	0	0	—	0.0× / 0.6
Derelicts · Caribbean Sea	0	0	0	—	0.0× / 0.2
Cable ops · Mediterranean Sea - Eastern Basin	0	0	0	—	0.0× / 0.8

Cite: seahazards.com Sea Ledger, 2003-07, 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.