Sea Ledger, June 2004

2004-06-01 to 2004-06-30 · archive

issued: 289
warning-days in force: 5,628
in force at month end: 201
sea × type cells: 177

baseline: same month, previous 5 years (2003-06, 2002-06, 2001-06, 2000-06, 1999-06)

By type

type	issued	warning-days	in force at end
Exercises	74	967.6	28
Nav aids	61	1,361.3	50
Incidents	34	777.4	31
Quakes	26	74.2	5
Cable ops	24	556.3	19
Derelicts	13	66.2	4
Surveys	12	690.4	25
Other	9	258.3	11
Icebergs	7	34.4	0
Wrecks	6	361.3	10
Missiles	5	60	2
Spills	5	79	3
Restricted	3	79.2	3
Ordnance	3	41.4	1
Containers	2	12.2	1
Debris	2	21.3	1
Mines	1	4.9	0
Structures	1	24.3	1
Volcanic	1	38.3	2
War risk	0	90	3
Towing	0	30	1

By sea and type · 177 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Exercises · Black Seasurge	13	77.6	4	41	3.1× / 4.2
Nav aids · North Atlantic Oceansurgelong running	11	246.3	6	448	4.6× / 2.4
Exercises · North Atlantic Ocean	11	115.4	2	50	1.1× / 10
Quakes · South Pacific Ocean	9	28.9	0	—	1.0× / 9
Nav aids · South Atlantic Oceanlong running	8	203.6	9	369	1.1× / 7.2
Exercises · Laccadive Seasurge	8	41.8	2	30	2.0× / 4
Quakes · North Pacific Ocean	7	20.3	2	32	1.2× / 5.8
Exercises · North Pacific Ocean	6	27.3	1	21	0.8× / 7.2
Exercises · Bay of Bengalsurge	6	18.6	0	—	2.7× / 2.2
Nav aids · North Sea	6	12.4	0	—	1.6× / 3.8
Exercises · Yellow Seanew	5	93.4	2	34	new / 0
Exercises · Mediterranean Sea - Eastern Basin	5	66.9	3	32	1.5× / 3.4
Missiles · North Pacific Ocean	5	60	2	34	0.9× / 5.6
Incidents · North Atlantic Ocean	5	56.2	2	25	0.9× / 5.6
Incidents · Mediterranean Sea - Eastern Basinsurge	5	49.5	2	62	3.1× / 1.6
Exercises · Adriatic Sea	5	4.5	0	—	1.7× / 3
Incidents · North Pacific Ocean	4	166.3	5	72	0.6× / 7
Nav aids · Bay of Bengalsurgelong running	4	86.7	4	425	6.7× / 0.6
Incidents · South Atlantic Ocean	4	86	4	251	0.7× / 5.8
Exercises · Japan Seanew	4	75.5	2	34	new / 0
Incidents · South Pacific Ocean	4	60	4	24	0.7× / 5.6
Nav aids · Coral Sea	4	43.9	3	222	1.5× / 2.6
Nav aids · Inner Seas off the West Coast of Scotland	4	32.5	3	331	1.1× / 3.6
Cable ops · Mediterranean Sea - Eastern Basinsurge	4	25.2	1	40	2.9× / 1.4
Cable ops · Arabian Seasurge	3	135.8	1	79	3.0× / 1
Incidents · Indian Ocean	3	82.1	3	39	0.8× / 3.8
Nav aids · English Channellong running	3	43.1	2	541	0.9× / 3.4
Nav aids · Laccadive Seanewlong running	3	29.5	1	425	new / 0
Icebergs · Indian Oceansurge	3	17.9	0	—	7.5× / 0.4
Exercises · Arabian Sea	3	12.7	0	—	1.1× / 2.6
Quakes · Indian Ocean	3	8.5	1	29	0.8× / 3.8
Derelicts · South Atlantic Oceansurge	3	7.2	0	—	5.0× / 0.6
Incidents · Philippine Sea	2	104.6	4	47	0.6× / 3.2
Other · Persian Gulflong running	2	99.6	4	512	10× / 0.2
Nav aids · Indian Ocean	2	72.9	3	49	3.3× / 0.6
Exercises · Ionian Sea	2	63.5	2	183	1.3× / 1.6
Cable ops · Bay of Bengal	2	55.5	2	69	3.3× / 0.6
Other · Tasman Sea	2	41.3	2	21	10× / 0.2
Wrecks · Gulf of Mexico	2	39.7	2	23	10× / 0.2
Cable ops · Laccadive Seanew	2	31.8	0	—	new / 0
Cable ops · North Atlantic Ocean	2	30.7	2	38	0.2× / 9.2
Incidents · Laccadive Seanew	2	29	1	56	new / 0
Surveys · Gulf of Suez	2	28.8	2	28	10× / 0.2
Surveys · Mediterranean Sea - Eastern Basin	2	26.7	2	35	5.0× / 0.4
Spills · North Pacific Ocean	2	25	1	36	3.3× / 0.6
Spills · The Coastal Waters of Southeast Alaska and British Columbia	2	23	1	37	2.5× / 0.8
Cable ops · Timor Seanew	2	21.9	2	18	new / 0
Incidents · Arabian Sea	2	20.3	1	19	1.3× / 1.6
Nav aids · North Pacific Oceannew	2	17.6	2	9	new / 0
Nav aids · Celtic Sea	2	16.5	0	—	0.7× / 2.8
Cable ops · Celtic Sea	2	16.1	0	—	0.2× / 8.2
Cable ops · English Channel	2	15	2	9	0.7× / 3
Icebergs · South Atlantic Ocean	2	13.4	0	—	0.7× / 3
Incidents · Tyrrhenian Sea	2	10.8	1	61	5.0× / 0.4
Surveys · South Atlantic Ocean	2	10.4	2	5	1.7× / 1.2
Derelicts · Arafura Seanew	2	7.7	2	4	new / 0
Derelicts · Mediterranean Sea - Eastern Basin	2	6.7	1	9	1.4× / 1.4
Quakes · Coral Sea	2	6	0	—	1.1× / 1.8
Surveys · Ionian Sea	2	4.5	1	8	10× / 0.2
Icebergs · North Atlantic Ocean	2	3.1	0	—	0.6× / 3.6
Derelicts · North Pacific Ocean	2	1.8	0	—	3.3× / 0.6
Quakes · Molukka Sea	2	1.5	2	1	3.3× / 0.6
Nav aids · South Pacific Ocean	1	116.6	4	93	0.7× / 1.4
Nav aids · Mozambique Channel	1	76	2	57	5.0× / 0.2
Nav aids · Red Sealong running	1	59.3	2	568	5.0× / 0.2
Nav aids · Arabian Sea	1	46.8	2	47	1.7× / 0.6
Volcanic · Philippine Sea	1	38.3	2	61	new / 0
Exercises · Indian Ocean	1	35.5	1	90	2.5× / 0.4
Nav aids · Irish Sea and St. George's Channel	1	32.6	1	45	0.3× / 3
Surveys · North Pacific Ocean	1	31.9	1	43	5.0× / 0.2
Surveys · North Atlantic Ocean	1	30.4	1	35	0.7× / 1.4
Exercises · Malacca Strait	1	29.7	0	—	5.0× / 0.2
Cable ops · Black Sea	1	29.3	1	29	5.0× / 0.2
Wrecks · North Atlantic Ocean	1	29.3	1	29	5.0× / 0.2
Restricted · North Pacific Ocean	1	27.5	1	27	new / 0
Surveys · Mediterranean Sea - Western Basin	1	25.6	0	—	1.7× / 0.6
Derelicts · South Pacific Ocean	1	24.5	1	24	0.7× / 1.4
Structures · North Atlantic Ocean	1	24.3	1	24	new / 0
Wrecks · Arabian Sea	1	23.4	1	126	new / 0
Spills · Gulf of Mexico	1	22	1	36	0.6× / 1.8
Restricted · Mediterranean Sea - Eastern Basin	1	21.5	1	21	new / 0
Surveys · Tyrrhenian Sea	1	16.2	0	—	0.7× / 1.4
Debris · North Pacific Ocean	1	15	1	14	new / 0
Wrecks · Yellow Sea	1	14.7	1	14	new / 0
Other · English Channel	1	12.3	1	12	1.0× / 1
Exercises · Philippine Sea	1	12.1	1	12	1.3× / 0.8
Cable ops · Bass Strait	1	11.9	0	—	1.3× / 0.8
Exercises · Red Sea	1	8.1	0	—	new / 0
Containers · Arabian Sea	1	7.7	0	—	5.0× / 0.2
Debris · Arabian Sea	1	6.3	0	—	new / 0
Cable ops · Norwegian Sea	1	6.2	1	6	5.0× / 0.2
Other · Tyrrhenian Sea	1	6.2	0	—	2.5× / 0.4
Derelicts · Caribbean Sea	1	6	0	—	1.0× / 1
Other · North Atlantic Ocean	1	6	0	—	0.2× / 5.6
Other · Coral Sea	1	5.7	1	5	5.0× / 0.2
Ordnance · Persian Gulf	1	5.1	0	—	0.5× / 2
Ordnance · South China Sea	1	5.1	0	—	new / 0
Mines · Black Sea	1	4.9	0	—	new / 0
Nav aids · Gulf of Suez	1	4.6	1	4	1.7× / 0.6
Nav aids · Tyrrhenian Sea	1	4.6	0	—	0.5× / 2
Containers · Philippine Sea	1	4.5	1	4	5.0× / 0.2
Incidents · Gulf of Guinea	1	4.4	1	4	5.0× / 0.2
Other · Gulf of Mexico	1	3.5	1	55	new / 0
Exercises · South Pacific Ocean	1	3.4	0	—	0.6× / 1.6
Derelicts · Laccadive Sea	1	3.3	0	—	1.7× / 0.6
Quakes · Banda Sea	1	3	0	—	2.5× / 0.4
Quakes · Caribbean Sea	1	3	0	—	2.5× / 0.4
Quakes · Java Sea	1	3	0	—	new / 0
Exercises · Andaman or Burma Sea	1	2.9	0	—	5.0× / 0.2
Nav aids · Gulf of Mexico	1	2.8	0	—	5.0× / 0.2
Cable ops · Aegean Sea	1	2.6	1	2	1.3× / 0.8
Wrecks · Mediterranean Sea - Eastern Basin	1	2.5	1	2	new / 0
Ordnance · Gulf of Oman	1	1.6	1	1	new / 0
Nav aids · Bristol Channel	1	1.5	0	—	1.3× / 0.8
Nav aids · Tasman Sea	1	0.9	0	—	5.0× / 0.2
Derelicts · North Atlantic Ocean	1	0.8	0	—	0.5× / 2.2
Nav aids · Andaman or Burma Sea	1	0.5	1	0	2.5× / 0.4
Nav aids · Great Australian Bight	1	0.4	0	—	2.5× / 0.4
Restricted · Bay of Biscay	1	0.2	0	—	new / 0
Cable ops · South Pacific Ocean	1	0.1	1	0	2.5× / 0.4
Exercises · Aegean Sea	0	210	7	183	0.0× / 4.2
Surveys · Baffin Bay	0	150	5	272	— / 0
Surveys · Beaufort Sea	0	90	3	174	— / 0
War risk · Persian Gulflong running	0	90	3	880	— / 0
Surveys · Persian Gulf	0	60.5	2	117	0.0× / 0.4
Cable ops · South China Sea	0	51	1	129	0.0× / 2.2
Exercises · Mediterranean Sea - Western Basin	0	47.8	1	41	0.0× / 3.6
Wrecks · North Sea	0	47.7	0	—	0.0× / 1
Other · Black Sealong running	0	45.9	1	476	— / 0
Nav aids · Persian Gulflong running	0	39.6	1	939	0.0× / 1.2
Surveys · Arctic Ocean	0	30	1	174	— / 0
Surveys · Balearic (Iberian Sea)	0	30	1	342	— / 0
Wrecks · Bass Strait	0	30	1	61	— / 0
Incidents · Bay of Bengal	0	30	1	34	0.0× / 0.4
Surveys · Bay of Bengal	0	30	1	49	— / 0
Wrecks · Bay of Bengal	0	30	1	35	0.0× / 0.2
Towing · Black Sea	0	30	1	72	— / 0
Surveys · Eastern China Sea	0	30	1	71	0.0× / 0.2
Incidents · Great Australian Bight	0	30	1	32	0.0× / 0.4
Surveys · Greenland Sealong running	0	30	1	490	— / 0
Cable ops · Gulf of Suez	0	30	1	31	— / 0
Restricted · Indian Oceanlong running	0	30	1	386	0.0× / 0.2
Nav aids · Ionian Sea	0	30	1	219	0.0× / 0.4
Other · Mediterranean Sea - Eastern Basin	0	30	1	71	0.0× / 0.8
Surveys · North Sea	0	30	1	75	0.0× / 4
Incidents · Persian Gulf	0	30	1	36	0.0× / 0.2
Cable ops · Philippine Sea	0	30	1	111	0.0× / 0.2
Cable ops · Sea of Azov	0	30	1	41	— / 0
Wrecks · Singapore Strait	0	30	1	37	— / 0
Nav aids · South China Sealong running	0	30	1	378	0.0× / 1
Wrecks · South Pacific Ocean	0	30	1	31	0.0× / 0.4
Nav aids · Southern Ocean	0	30	1	61	— / 0
Cable ops · Yellow Sea	0	30	1	34	0.0× / 0.6
Ordnance · Arabian Sea	0	29.6	0	—	— / 0
Surveys · Philippine Sea	0	29	0	—	— / 0
Nav aids · Sea of Azov	0	27.5	0	—	— / 0
Wrecks · South Atlantic Ocean	0	24.9	0	—	0.0× / 0.2
Nav aids · Savu Sea	0	22.8	0	—	— / 0
Nav aids · Mediterranean Sea - Eastern Basin	0	19	0	—	— / 0
Wrecks · Persian Gulf	0	18.2	0	—	0.0× / 1
Exercises · Tyrrhenian Sea	0	17.8	0	—	0.0× / 1.2
Wrecks · English Channel	0	15.9	0	—	0.0× / 0.4
Wrecks · Kattegat	0	15.9	0	—	— / 0
Nav aids · Mediterranean Sea - Western Basin	0	10.8	0	—	0.0× / 1.4
Incidents · Arafura Sea	0	9.1	0	—	0.0× / 0.6
Incidents · South China Sea	0	9.1	0	—	0.0× / 1.6
Wrecks · Sulu Sea	0	9.1	0	—	— / 0
Spills · North Atlantic Ocean	0	9	0	—	0.0× / 1.8
Other · Celtic Sea	0	6.8	0	—	0.0× / 0.4
Surveys · Black Sea	0	6.4	0	—	— / 0
Derelicts · Coral Sea	0	5	0	—	0.0× / 1.2
Derelicts · Celtic Sea	0	3.2	0	—	0.0× / 0.6
Exercises · Bay of Biscay	0	3.1	0	—	— / 0
Cable ops · North Sea	0	3.1	0	—	0.0× / 4.4
Other · South Pacific Ocean	0	1	0	—	0.0× / 1.2
Cable ops · Indian Ocean	0	0.1	0	—	— / 0
Derelicts · Malacca Strait	0	0	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2004-06, 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.