Sea Ledger, September 2005

2005-09-01 to 2005-09-30 · archive

issued: 335
warning-days in force: 10,395
in force at month end: 376
sea × type cells: 194

baseline: same month, previous 5 years (2004-09, 2003-09, 2002-09, 2001-09, 2000-09)

By type

type	issued	warning-days	in force at end
Exercises	84	877.9	31
Incidents	52	1,085.2	46
Nav aids	44	3,225.8	119
Surveys	34	1,474.9	54
Quakes	34	114	5
Cable ops	25	788.2	26
Spills	16	220	2
Wrecks	12	1,118.6	39
Derelicts	9	51	3
Icebergs	6	37.6	2
Debris	5	141.7	7
Missiles	4	60	2
Ordnance	4	322.6	11
Containers	3	21.8	1
Other	2	523.8	17
Structures	1	64.5	3
Restricted	0	110.7	3
War risk	0	30	1
Volcanic	0	60	2
Piracy	0	60	2
Towing	0	6.5	0

By sea and type · 194 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Spills · Gulf of Mexicosurge	16	220	2	32	7.3× / 2.2
Incidents · Philippine Seasurge	12	128.3	8	28	2.2× / 5.4
Exercises · South Atlantic Oceansurge	12	76.6	2	43	5.0× / 2.4
Exercises · Laccadive Seasurge	12	47.9	5	31	2.1× / 5.6
Exercises · North Pacific Ocean	11	94.4	2	56	1.4× / 8
Exercises · North Atlantic Ocean	8	93.8	2	268	0.8× / 10
Cable ops · South Atlantic Ocean	8	62.1	2	177	0.3× / 28.8
Quakes · South Pacific Ocean	8	42.6	1	29	0.6× / 12.8
Incidents · Indian Ocean	7	107.4	5	167	1.8× / 4
Quakes · Solomon Seasurge	7	10.5	4	20	3.5× / 2
Incidents · South China Sea	6	147.3	5	57	1.9× / 3.2
Icebergs · Southern Oceansurge	6	37.6	2	30	10× / 0.6
Surveys · Celtic Seasurge	6	34.7	2	65	10× / 0.6
Nav aids · North Sea	5	302.5	11	318	1.1× / 4.4
Nav aids · South Atlantic Ocean	5	205.3	9	293	1.4× / 3.6
Exercises · Aegean Sea	5	142.9	5	270	1.4× / 3.6
Nav aids · Celtic Sea	5	113.5	4	328	1.9× / 2.6
Debris · Gulf of Mexicosurge	5	80.7	5	23	25× / 0.2
Incidents · South Atlantic Ocean	5	32	3	35	1.5× / 3.4
Derelicts · South China Seasurge	5	21.6	1	29	5.0× / 1
Exercises · Arabian Seasurge	5	8	1	28	2.1× / 2.4
Ordnance · North Seanew	4	292.6	10	134	new / 0
Incidents · South Pacific Oceanlong running	4	149.9	6	459	0.8× / 5.2
Nav aids · South Pacific Ocean	4	149.4	8	248	1.2× / 3.4
Wrecks · English Channelsurge	4	133.9	5	115	20× / 0.2
Surveys · Gulf of Mexicosurge	4	133.1	8	46	10× / 0.4
Nav aids · Gulf of Mexicosurge	4	97.8	4	172	6.7× / 0.6
Exercises · Japan Sea	4	80.5	2	35	1.7× / 2.4
Exercises · Yellow Seasurge	4	76.1	4	35	10× / 0.4
Wrecks · Gulf of Mexicosurgelong running	4	66.8	3	368	20× / 0.2
Missiles · North Pacific Ocean	4	60	2	33	0.8× / 4.8
Incidents · Bay of Bengalsurge	4	43.3	4	13	5.0× / 0.8
Surveys · English Channelsurge	4	39.3	1	35	3.3× / 1.2
Surveys · Mediterranean Sea - Eastern Basin	4	31.2	2	23	1.8× / 2.2
Surveys · Coral Seanew	4	30.6	0	—	new / 0
Quakes · Coral Seasurge	4	12	0	—	3.3× / 1.2
Incidents · North Pacific Ocean	3	147	3	58	0.3× / 9.8
Nav aids · English Channelsurge	3	131.8	6	290	3.0× / 1
Cable ops · South China Sea	3	97.1	4	173	1.5× / 2
Nav aids · Irish Sea and St. George's Channel	3	91.7	3	148	1.1× / 2.8
Cable ops · Persian Gulfsurge	3	72.9	3	54	3.0× / 1
Incidents · North Atlantic Ocean	3	61	2	45	0.8× / 3.8
Incidents · Mediterranean Sea - Eastern Basinsurge	3	58	3	164	3.0× / 1
Surveys · North Atlantic Ocean	3	55.3	2	137	1.9× / 1.6
Exercises · Black Sea	3	26.3	1	28	0.3× / 8.6
Exercises · Sea of Okhotsksurge	3	16.3	1	28	7.5× / 0.4
Exercises · Bay of Bengal	3	12.8	0	—	0.8× / 3.6
Quakes · South Atlantic Ocean	3	11.1	0	—	1.0× / 3
Quakes · Indian Ocean	3	9	0	—	0.9× / 3.2
Exercises · Indian Ocean	3	5.7	0	—	1.7× / 1.8
Nav aids · Coral Sealong running	2	176	6	466	1.1× / 1.8
Wrecks · South China Sealong running	2	106.6	4	398	10× / 0.2
Cable ops · Mediterranean Sea - Eastern Basin	2	94.9	4	113	1.7× / 1.2
Nav aids · Mediterranean Sea - Western Basin	2	77.4	2	283	2.0× / 1
Nav aids · North Atlantic Ocean	2	64.7	3	132	0.5× / 4.2
Exercises · South Pacific Ocean	2	14.4	0	—	1.0× / 2
Containers · Eastern China Seanew	2	13.4	0	—	new / 0
Quakes · Philippine Sea	2	6	0	—	0.6× / 3.4
Cable ops · Timor Sea	2	0.9	0	—	5.0× / 0.4
Exercises · North Seanew	2	0.6	0	—	new / 0
Nav aids · Indian Ocean	1	171.8	5	174	0.6× / 1.8
Nav aids · Bay of Bengal	1	150.4	6	219	2.5× / 0.4
Nav aids · North Pacific Oceanlong running	1	123.4	5	405	new / 0
Wrecks · North Sea	1	93.2	4	343	new / 0
Exercises · Ionian Sea	1	91.4	3	270	0.5× / 2.2
Wrecks · Mediterranean Sea - Eastern Basinlong running	1	90.4	3	459	new / 0
Nav aids · Mozambique Channel	1	90	3	171	2.5× / 0.4
Incidents · Tasman Sea	1	87.9	2	51	0.5× / 2
Cable ops · Arabian Sea	1	82.8	2	39	1.3× / 0.8
Surveys · Philippine Sea	1	63.6	2	146	0.6× / 1.8
Surveys · North Sea	1	62.7	1	53	0.4× / 2.4
Cable ops · North Sea	1	61.6	2	157	0.5× / 2
Surveys · North Pacific Ocean	1	56.6	1	60	1.3× / 0.8
Surveys · South Atlantic Ocean	1	55.3	2	40	0.5× / 2
Surveys · Eastern China Sea	1	40.6	2	53	new / 0
Surveys · South China Sea	1	39.6	2	42	new / 0
Nav aids · Gulf of Suez	1	34.6	2	307	2.5× / 0.4
Cable ops · Black Sea	1	33.6	1	143	1.7× / 0.6
Exercises · Malacca Strait	1	32.3	1	34	1.7× / 0.6
Cable ops · North Atlantic Ocean	1	31.4	1	70	0.1× / 7.2
Other · North Atlantic Ocean	1	31.2	2	42	0.6× / 1.6
Nav aids · Arafura Sea	1	30.2	1	106	1.7× / 0.6
Exercises · Red Sea	1	27.3	0	—	2.5× / 0.4
Other · Gulf of Mexico	1	23.5	1	23	new / 0
Incidents · Great Australian Bight	1	22.2	1	22	new / 0
Cable ops · Bass Strait	1	21.7	1	37	2.5× / 0.4
Surveys · Black Sea	1	21.5	1	21	1.3× / 0.8
Cable ops · Irish Sea and St. George's Channel	1	14.5	1	14	0.8× / 1.2
Nav aids · Laccadive Sea	1	13.2	0	—	1.3× / 0.8
Exercises · Mediterranean Sea - Western Basin	1	10.3	1	10	0.4× / 2.6
Exercises · Tyrrhenian Sea	1	10.3	1	10	0.3× / 3.4
Nav aids · Black Sea	1	8.5	1	8	new / 0
Exercises · Bering Sea	1	6.9	0	—	5.0× / 0.2
Incidents · Persian Gulf	1	6.8	0	—	1.3× / 0.8
Derelicts · Gulf of Mexico	1	6.4	0	—	0.8× / 1.2
Derelicts · Mediterranean Sea - Eastern Basin	1	6.2	0	—	1.3× / 0.8
Derelicts · South Pacific Ocean	1	5.6	1	5	1.7× / 0.6
Derelicts · Indian Ocean	1	5.2	1	5	1.7× / 0.6
Quakes · North Pacific Ocean	1	4.8	0	—	0.2× / 6
Structures · Mediterranean Sea - Eastern Basin	1	4.5	1	4	5.0× / 0.2
Containers · Arabian Sea	1	4.4	1	4	new / 0
Cable ops · Balearic (Iberian Sea)	1	4.1	0	—	new / 0
Surveys · Adriatic Sea	1	3.5	1	3	1.3× / 0.8
Incidents · Mozambique Channel	1	3.2	0	—	2.5× / 0.4
Quakes · Banda Sea	1	3	0	—	2.5× / 0.4
Quakes · Bay of Bengal	1	3	0	—	new / 0
Quakes · Caribbean Sea	1	3	0	—	5.0× / 0.2
Quakes · Celebes Sea	1	3	0	—	5.0× / 0.2
Quakes · Molukka Sea	1	3	0	—	5.0× / 0.2
Quakes · Sea of Okhotsk	1	3	0	—	5.0× / 0.2
Exercises · Andaman or Burma Sea	1	1.8	0	—	2.5× / 0.4
Nav aids · Malacca Strait	1	1.6	1	1	new / 0
Incidents · Arabian Sea	1	0.9	1	0	0.8× / 1.2
Surveys · Gulf of Guinea	1	0.3	1	0	2.5× / 0.4
Nav aids · Arabian Sealong running	0	180	6	408	0.0× / 0.4
Nav aids · Tasman Sealong running	0	180	6	404	0.0× / 1.2
Wrecks · Arabian Sealong running	0	150	5	395	0.0× / 0.2
Surveys · Baffin Baylong running	0	150	5	729	— / 0
Nav aids · Tyrrhenian Sea	0	150	5	316	0.0× / 2.8
Nav aids · Caribbean Sea	0	120	4	287	— / 0
Nav aids · Inner Seas off the West Coast of Scotland	0	120	4	113	0.0× / 1.4
Wrecks · Irish Sea and St. George's Channellong running	0	120	4	389	0.0× / 0.4
Other · North Sea	0	120	4	164	0.0× / 1
Surveys · Arctic Oceanlong running	0	117	3	631	— / 0
Other · Bay of Bengal	0	90	3	212	— / 0
Surveys · Bay of Bengal	0	90	3	332	— / 0
Surveys · Beaufort Sealong running	0	90	3	631	— / 0
Nav aids · Great Australian Bight	0	90	3	300	0.0× / 0.4
Nav aids · Red Sealong running	0	90	3	424	0.0× / 0.4
Cable ops · Sea of Okhotsk	0	75	2	78	0.0× / 0.2
Nav aids · Persian Gulf	0	60	2	93	0.0× / 0.4
Piracy · Persian Gulf	0	60	2	234	— / 0
Surveys · Sea of Okhotsk	0	60	2	113	0.0× / 0.4
Wrecks · South Atlantic Ocean	0	60	2	201	— / 0
Wrecks · South Pacific Oceanlong running	0	60	2	488	— / 0
Surveys · Tasman Sea	0	60	2	248	— / 0
Wrecks · Yellow Sealong running	0	60	2	471	— / 0
Nav aids · Bass Strait	0	36.9	1	234	0.0× / 0.4
Debris · North Pacific Ocean	0	31	1	107	0.0× / 1
Other · Caribbean Sea	0	30.1	0	—	— / 0
Nav aids · Andaman or Burma Sea	0	30	1	261	0.0× / 0.6
Volcanic · Andaman or Burma Sea	0	30	1	116	— / 0
Other · Arabian Sea	0	30	1	102	— / 0
Surveys · Arabian Sea	0	30	1	195	— / 0
Debris · Arctic Ocean	0	30	1	283	— / 0
Surveys · Bass Strait	0	30	1	132	— / 0
Cable ops · Bay of Bengal	0	30	1	155	0.0× / 1
Incidents · Bay of Biscay	0	30	1	41	— / 0
Restricted · Black Sea	0	30	1	80	— / 0
Structures · Black Sea	0	30	1	36	— / 0
Wrecks · Caribbean Sea	0	30	1	254	— / 0
Surveys · Chukchi Sea	0	30	1	164	— / 0
Surveys · Greenland Sealong running	0	30	1	947	— / 0
Ordnance · Gulf of Omanlong running	0	30	1	458	— / 0
Other · Indian Ocean	0	30	1	135	0.0× / 0.4
Restricted · Indian Ocean	0	30	1	159	0.0× / 0.4
Surveys · Indian Ocean	0	30	1	270	0.0× / 0.2
Wrecks · Indian Ocean	0	30	1	298	— / 0
Nav aids · Ionian Sea	0	30	1	93	0.0× / 0.6
Restricted · Irish Sea and St. George's Channel	0	30	1	98	— / 0
Cable ops · Labrador Sea	0	30	1	98	0.0× / 0.4
Cable ops · Laccadive Sea	0	30	1	72	0.0× / 0.2
Incidents · Laccadive Sea	0	30	1	31	— / 0
Wrecks · Malacca Strait	0	30	1	357	— / 0
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	30	1	406	0.0× / 0.8
Other · North Pacific Ocean	0	30	1	249	0.0× / 0.4
Wrecks · North Pacific Ocean	0	30	1	249	— / 0
Other · Persian Gulf	0	30	1	93	0.0× / 0.8
Structures · Persian Gulf	0	30	1	347	— / 0
Surveys · Persian Gulf	0	30	1	32	— / 0
War risk · Persian Gulflong running	0	30	1	515	— / 0
Nav aids · Philippine Sea	0	30	1	73	0.0× / 0.2
Volcanic · Philippine Sea	0	30	1	72	0.0× / 0.2
Other · Sea of Okhotsk	0	30	1	78	— / 0
Nav aids · Singapore Strait	0	30	1	208	0.0× / 0.2
Wrecks · Singapore Straitlong running	0	30	1	494	— / 0
Other · South Pacific Ocean	0	30	1	155	0.0× / 0.2
Surveys · Strait of Gibraltar	0	30	1	125	— / 0
Other · Tasman Sea	0	30	1	325	— / 0
Surveys · Timor Sea	0	30	1	85	— / 0
Incidents · Yellow Sea	0	30	1	41	— / 0
Wrecks · Bay of Bengal	0	27.7	0	—	— / 0
Cable ops · Inner Seas off the West Coast of Scotland	0	27.5	0	—	0.0× / 0.4
Restricted · North Atlantic Ocean	0	20.7	0	—	— / 0
Cable ops · South Pacific Ocean	0	18.1	0	—	— / 0
Nav aids · Rio de La Plata	0	15.1	0	—	— / 0
Other · Coral Sea	0	14.5	0	—	0.0× / 0.2
Towing · Black Sea	0	6.5	0	—	0.0× / 0.2
Derelicts · Tyrrhenian Sea	0	6	0	—	0.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	0	4.5	0	—	0.0× / 1
Containers · South Atlantic Ocean	0	4	0	—	— / 0
Exercises · Philippine Sea	0	1.3	0	—	0.0× / 0.6
Exercises · Mediterranean Sea - Eastern Basin	0	0	0	—	0.0× / 3
Surveys · Yellow Sea	0	0	0	—	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2005-09, 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.