Sea Ledger, May 2005

2005-05-01 to 2005-05-31 · archive

issued: 301
warning-days in force: 9,235
in force at month end: 290
sea × type cells: 192

baseline: same month, previous 5 years (2004-05, 2003-05, 2002-05, 2001-05, 2000-05)

By type

type	issued	warning-days	in force at end
Exercises	63	713	25
Cable ops	60	961.9	20
Incidents	43	1,463.3	46
Nav aids	29	2,698.9	91
Quakes	27	74	5
Surveys	22	927.6	32
Derelicts	17	181.3	3
Other	11	514.9	16
Icebergs	7	76.6	2
Missiles	6	63.7	2
Restricted	4	55.2	2
Ordnance	4	66.2	3
Debris	3	78.6	2
Containers	2	14.2	1
Spills	2	84	0
Wrecks	1	1,075.6	34
War risk	0	31	1
Piracy	0	62	2
Structures	0	62	2
Volcanic	0	31	1

By sea and type · 192 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	38	172.9	3	55	1.2× / 32.4
Incidents · North Pacific Ocean	14	471.1	15	72	1.8× / 7.6
Exercises · North Pacific Ocean	10	51	1	34	1.1× / 9.2
Quakes · Indian Oceansurge	10	28.5	1	33	4.5× / 2.2
Quakes · South Pacific Ocean	8	23.1	1	27	1.1× / 7.6
Exercises · Laccadive Sea	7	43.3	0	—	1.2× / 5.8
Incidents · South Pacific Ocean	6	180.5	5	337	1.1× / 5.4
Missiles · North Pacific Ocean	6	63.7	2	61	1.0× / 6.2
Incidents · Mediterranean Sea - Eastern Basin	5	205.7	5	69	1.7× / 3
Nav aids · North Sea	5	173.5	6	196	0.9× / 5.8
Exercises · North Atlantic Ocean	5	104.8	3	146	0.4× / 11.6
Incidents · South Atlantic Ocean	5	89.1	6	35	1.2× / 4.2
Cable ops · Mediterranean Sea - Eastern Basinsurge	5	88.4	1	53	2.5× / 2
Surveys · South Atlantic Ocean	5	59.3	2	81	0.8× / 6.2
Derelicts · South Atlantic Oceansurge	5	42.7	1	28	2.3× / 2.2
Exercises · South Pacific Oceansurge	5	22.4	0	—	3.6× / 1.4
Exercises · Bay of Bengal	5	15.6	0	—	1.9× / 2.6
Cable ops · Mediterranean Sea - Western Basinsurge	4	65	1	40	5.0× / 0.8
Icebergs · South Atlantic Oceansurge	4	62	2	45	2.9× / 1.4
Other · Mediterranean Sea - Eastern Basinsurge	4	48.5	2	64	4.0× / 1
Exercises · Mediterranean Sea - Eastern Basin	4	45.3	2	33	1.3× / 3.2
Exercises · Mediterranean Sea - Western Basin	4	32.4	1	39	1.3× / 3.2
Exercises · South Atlantic Ocean	4	11.7	4	5	1.8× / 2.2
Nav aids · South Pacific Ocean	3	127.1	7	260	1.4× / 2.2
Exercises · Yellow Seasurge	3	53.4	3	34	7.5× / 0.4
Surveys · Philippine Seasurge	3	36.7	1	25	3.8× / 0.8
Exercises · Tyrrhenian Sea	3	29	1	25	0.8× / 3.8
Cable ops · Malacca Straitnew	3	27	0	—	new / 0
Derelicts · Mediterranean Sea - Eastern Basinsurge	3	18.9	0	—	3.8× / 0.8
Exercises · Arabian Sea	3	10.6	0	—	0.8× / 3.6
Quakes · North Pacific Ocean	3	9	0	—	0.6× / 5
Nav aids · Arabian Sea	2	254.5	9	322	3.3× / 0.6
Nav aids · South Atlantic Ocean	2	171.9	4	171	0.3× / 6.2
Nav aids · English Channel	2	120.7	4	168	0.7× / 3
Exercises · Aegean Sea	2	98.8	4	148	0.8× / 2.6
Nav aids · Inner Seas off the West Coast of Scotlandlong running	2	65.1	2	666	1.0× / 2
Incidents · Philippine Sea	2	59.2	0	—	0.7× / 3
Incidents · South China Sea	2	58.4	2	73	0.6× / 3.2
Cable ops · Arabian Sea	2	55.8	1	60	0.7× / 2.8
Surveys · North Atlantic Ocean	2	50.8	3	99	0.7× / 3
Cable ops · Celtic Sea	2	47.5	1	50	0.6× / 3.2
Incidents · Tasman Sea	2	45.2	3	40	1.4× / 1.4
Incidents · Coral Sea	2	44.6	2	27	0.4× / 5.6
Surveys · Tasman Seanew	2	44	2	126	new / 0
Nav aids · North Atlantic Oceanlong running	2	38.5	2	407	0.5× / 4.2
Surveys · Tyrrhenian Sea	2	15.9	0	—	1.4× / 1.4
Icebergs · Labrador Seanew	2	13.9	0	—	new / 0
Derelicts · North Pacific Ocean	2	13	0	—	2.5× / 0.8
Derelicts · North Atlantic Ocean	2	12.9	0	—	0.8× / 2.4
Other · North Atlantic Ocean	2	7.9	0	—	0.5× / 4.4
Derelicts · Caribbean Seanew	2	7.2	0	—	new / 0
Exercises · Andaman or Burma Sea	2	5.1	0	—	5.0× / 0.4
Quakes · Philippine Sea	2	3.8	2	2	0.8× / 2.4
Nav aids · Tasman Sea	1	182.5	6	282	1.7× / 0.6
Nav aids · Coral Sea	1	171.6	6	344	1.3× / 0.8
Incidents · Indian Ocean	1	143.2	4	69	0.2× / 4.6
Wrecks · North Pacific Ocean	1	83.6	2	127	new / 0
Exercises · Ionian Sea	1	80.4	3	148	1.3× / 0.8
Nav aids · Red Sea	1	74.4	3	302	5.0× / 0.2
Surveys · Bay of Bengal	1	68.5	1	210	5.0× / 0.2
Nav aids · Indian Ocean	1	63.5	2	52	0.6× / 1.6
Nav aids · Celtic Sea	1	62.5	2	206	0.3× / 3.2
Other · Bay of Bengal	1	62.2	2	90	new / 0
Nav aids · Great Australian Bight	1	62.1	3	178	1.7× / 0.6
Cable ops · South China Sea	1	62	2	51	0.8× / 1.2
Cable ops · Tyrrhenian Sea	1	61	1	47	new / 0
Nav aids · Mediterranean Sea - Western Basin	1	55.7	1	161	1.0× / 1
Nav aids · Caribbean Sea	1	52.1	2	165	2.5× / 0.4
Cable ops · Laccadive Sea	1	44.5	1	83	0.7× / 1.4
Incidents · Arabian Sea	1	44.2	1	57	1.7× / 0.6
Incidents · North Atlantic Ocean	1	43.7	1	71	0.2× / 4.2
Other · Persian Gulflong running	1	43	1	574	1.3× / 0.8
Cable ops · North Sea	1	38.6	1	35	0.4× / 2.8
Debris · North Pacific Ocean	1	37.9	1	349	2.5× / 0.4
Spills · North Atlantic Ocean	1	37	0	—	0.7× / 1.4
Exercises · Japan Sea	1	35.8	1	34	1.3× / 0.8
Nav aids · Bristol Channel	1	33.5	1	45	0.5× / 2.2
Ordnance · North Sea	1	32.4	1	54	new / 0
Nav aids · Philippine Sea	1	31.7	1	305	5.0× / 0.2
Nav aids · Irish Sea and St. George's Channel	1	28.6	1	315	0.6× / 1.6
Derelicts · Bay of Bengal	1	28	1	28	2.5× / 0.4
Surveys · North Pacific Ocean	1	24.3	0	—	5.0× / 0.2
Cable ops · Black Sea	1	21.5	1	21	new / 0
Spills · North Pacific Ocean	1	14	0	—	1.0× / 1
Other · Indian Ocean	1	13.2	1	13	new / 0
Incidents · Bay of Bengal	1	12.3	1	12	5.0× / 0.2
Restricted · Persian Gulf	1	12.3	1	12	5.0× / 0.2
Exercises · Red Sea	1	12.3	1	12	1.3× / 0.8
Surveys · Bass Strait	1	10.3	1	10	5.0× / 0.2
Incidents · Tyrrhenian Sea	1	9.6	1	9	2.5× / 0.4
Containers · North Atlantic Ocean	1	8.6	0	—	1.3× / 0.8
Debris · Mediterranean Sea - Eastern Basin	1	6.6	0	—	new / 0
Derelicts · Philippine Sea	1	6.1	1	6	new / 0
Containers · North Pacific Ocean	1	5.6	1	5	1.7× / 0.6
Restricted · Mediterranean Sea - Western Basin	1	5.3	0	—	new / 0
Other · Mozambique Channel	1	5.3	0	—	new / 0
Other · Mediterranean Sea - Western Basin	1	4.9	0	—	2.5× / 0.4
Surveys · Mediterranean Sea - Western Basin	1	4.5	1	4	0.8× / 1.2
Surveys · English Channel	1	4.1	1	4	0.7× / 1.4
Cable ops · North Atlantic Ocean	1	4	1	3	0.1× / 6.6
Restricted · Ionian Sea	1	3.5	0	—	new / 0
Surveys · Strait of Gibraltar	1	3.3	1	3	new / 0
Exercises · Gulf of Mexico	1	3.2	1	3	0.6× / 1.6
Restricted · North Atlantic Ocean	1	3.1	0	—	5.0× / 0.2
Quakes · Coral Sea	1	3	0	—	0.5× / 2
Quakes · Solomon Sea	1	3	0	—	1.3× / 0.8
Quakes · South Atlantic Ocean	1	3	0	—	1.3× / 0.8
Surveys · Celtic Sea	1	2.9	0	—	0.1× / 12.6
Exercises · Bering Sea	1	1.8	0	—	5.0× / 0.2
Ordnance · Mediterranean Sea - Western Basin	1	1.1	1	1	5.0× / 0.2
Exercises · Philippine Sea	1	1.1	0	—	1.7× / 0.6
Surveys · South Pacific Ocean	1	1.1	1	1	new / 0
Ordnance · Gulf of Thailand	1	1	0	—	1.7× / 0.6
Icebergs · North Atlantic Ocean	1	0.7	0	—	0.3× / 3.6
Ordnance · Tyrrhenian Sea	1	0.7	0	—	1.3× / 0.8
Quakes · Southern Ocean	1	0.6	1	0	5.0× / 0.2
Derelicts · Persian Gulf	1	0.1	0	—	new / 0
Debris · Philippine Sea	1	0.1	0	—	new / 0
Nav aids · Bay of Bengallong running	0	248	8	608	0.0× / 0.8
Surveys · Baffin Baylong running	0	155	5	607	— / 0
Cable ops · Bay of Bengal	0	155	5	164	0.0× / 1
Wrecks · Persian Gulf	0	155	5	223	— / 0
Nav aids · Tyrrhenian Sea	0	149.6	4	194	0.0× / 2
Nav aids · Andaman or Burma Sea	0	124	4	335	0.0× / 0.2
Wrecks · Irish Sea and St. George's Channel	0	124	4	267	— / 0
Wrecks · Arabian Sea	0	93	3	273	0.0× / 0.4
Surveys · Beaufort Sealong running	0	93	3	509	— / 0
Other · North Sea	0	93	3	42	0.0× / 2.2
Surveys · Arabian Sea	0	62	2	80	0.0× / 0.4
Surveys · Arctic Oceanlong running	0	62	2	509	— / 0
Nav aids · Bass Strait	0	62	2	112	0.0× / 0.8
Other · Coral Sea	0	62	2	340	0.0× / 0.4
Wrecks · Mediterranean Sea - Eastern Basin	0	62	2	337	0.0× / 0.2
Nav aids · North Pacific Ocean	0	62	2	283	0.0× / 0.4
Wrecks · North Sea	0	62	2	221	0.0× / 0.4
Piracy · Persian Gulf	0	62	2	112	— / 0
Wrecks · South China Sea	0	62	2	276	— / 0
Wrecks · South Pacific Oceanlong running	0	62	2	366	0.0× / 0.6
Wrecks · Yellow Sea	0	62	2	349	— / 0
Incidents · Bay of Biscay	0	56.5	0	—	0.0× / 0.8
Cable ops · Gulf of Suez	0	54.4	0	—	0.0× / 0.6
Other · South Pacific Ocean	0	50.9	1	59	0.0× / 1.4
Nav aids · Mozambique Channellong running	0	34.3	1	392	0.0× / 2
Nav aids · Laccadive Sea	0	32.5	1	350	0.0× / 0.8
Structures · Adriatic Sea	0	31	1	256	— / 0
Other · Arabian Sea	0	31	1	53	0.0× / 0.4
Debris · Arctic Ocean	0	31	1	161	— / 0
Surveys · Balearic (Iberian Sea)long running	0	31	1	677	— / 0
Wrecks · Bass Straitlong running	0	31	1	396	— / 0
Wrecks · Bay of Bengallong running	0	31	1	370	0.0× / 0.2
Surveys · Bering Sea	0	31	1	42	— / 0
Wrecks · Caribbean Sea	0	31	1	132	— / 0
Surveys · Chukchi Sea	0	31	1	42	— / 0
Surveys · Greenland Sealong running	0	31	1	825	— / 0
Nav aids · Gulf of Mexico	0	31	1	50	0.0× / 0.6
Wrecks · Gulf of Mexico	0	31	1	246	— / 0
Ordnance · Gulf of Oman	0	31	1	336	— / 0
Nav aids · Gulf of Suez	0	31	1	185	0.0× / 0.6
Wrecks · Gulf of Suez	0	31	1	45	— / 0
Restricted · Indian Ocean	0	31	1	37	— / 0
Surveys · Indian Ocean	0	31	1	148	0.0× / 0.6
Wrecks · Indian Ocean	0	31	1	176	0.0× / 0.2
Nav aids · Ionian Sealong running	0	31	1	554	— / 0
Wrecks · Laccadive Sea	0	31	1	322	— / 0
Wrecks · Malacca Strait	0	31	1	235	— / 0
Nav aids · Mediterranean Sea - Eastern Basin	0	31	1	284	— / 0
Other · North Pacific Ocean	0	31	1	127	0.0× / 0.8
Nav aids · Persian Gulflong running	0	31	1	1,274	0.0× / 2
Structures · Persian Gulf	0	31	1	225	— / 0
War risk · Persian Gulflong running	0	31	1	393	0.0× / 0.2
Volcanic · Philippine Sea	0	31	1	119	0.0× / 0.4
Nav aids · Singapore Strait	0	31	1	86	0.0× / 0.2
Other · Singapore Strait	0	31	1	60	— / 0
Wrecks · Singapore Straitlong running	0	31	1	372	0.0× / 0.2
Wrecks · South Atlantic Ocean	0	31	1	79	0.0× / 0.4
Nav aids · South China Sealong running	0	31	1	713	— / 0
Surveys · South China Sea	0	31	1	48	0.0× / 0.2
Cable ops · South Pacific Ocean	0	31	1	94	0.0× / 0.6
Other · Tasman Sea	0	31	1	203	0.0× / 0.4
Exercises · Malacca Strait	0	30.7	0	—	0.0× / 0.2
Exercises · Indian Ocean	0	24.3	0	—	0.0× / 0.6
Spills · Gulf of Mexico	0	24	0	—	0.0× / 2
Surveys · Mediterranean Sea - Eastern Basin	0	24	0	—	0.0× / 2.2
Surveys · Alboran Sea	0	19.9	0	—	— / 0
Derelicts · Indian Ocean	0	19.9	0	—	— / 0
Derelicts · Red Sea	0	19.9	0	—	— / 0
Cable ops · Ionian Sea	0	16.3	0	—	— / 0
Derelicts · South China Sea	0	12.6	0	—	0.0× / 0.8
Cable ops · Java Sea	0	10	0	—	— / 0
Spills · The Coastal Waters of Southeast Alaska and British Columbia	0	9	0	—	0.0× / 0.6
Cable ops · Gulf of Mexico	0	7	0	—	— / 0
Debris · Caribbean Sea	0	3	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2005-05, 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.