Sea Ledger, September 2014

2014-09-01 to 2014-09-30 · archive

issued: 597
warning-days in force: 10,313
in force at month end: 316
sea × type cells: 240

baseline: same month, previous 5 years (2013-09, 2012-09, 2011-09, 2010-09, 2009-09)

By type

type	issued	warning-days	in force at end
Incidents	170	989.5	26
Exercises	130	1,098.7	28
Cable ops	53	1,290.2	44
Nav aids	52	2,750.1	88
Icebergs	36	48.1	2
Missiles	34	242.1	2
Surveys	28	1,290.1	37
Quakes	25	70.2	3
Other	20	605.2	27
Derelicts	17	104.5	2
Spills	12	166	4
Piracy	6	50.2	1
Wrecks	4	907.5	30
Debris	3	9	0
Restricted	2	165.1	5
Towing	2	77.2	1
Ordnance	2	107.8	4
Structures	1	191.6	7
Mines	0	30	1
War risk	0	60	2
Containers	0	0.2	0
Volcanic	0	60	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Incidents · North Pacific Ocean	38	168.6	2	70	1.8× / 21.4
Icebergs · Labrador Seasurge	31	33.1	2	31	2.5× / 12.2
Incidents · Mediterranean Sea - Eastern Basinsurge	26	138.4	3	37	3.9× / 6.6
Exercises · North Pacific Ocean	22	115.7	4	34	1.9× / 11.8
Incidents · South China Sea	15	55.5	1	33	1.7× / 8.6
Exercises · Yellow Sea	13	99.2	3	34	1.8× / 7.2
Exercises · North Atlantic Oceansurge	13	66.3	2	34	2.6× / 5
Incidents · North Atlantic Ocean	12	162	3	67	1.3× / 9.2
Exercises · Black Seasurge	12	71.8	1	32	3.8× / 3.2
Quakes · South Pacific Ocean	11	29.8	2	27	0.9× / 12
Cable ops · South Atlantic Ocean	9	89.8	4	47	0.4× / 21.6
Incidents · Indian Ocean	9	23.6	4	35	1.1× / 8
Cable ops · North Atlantic Ocean	8	235.9	8	192	1.1× / 7.6
Incidents · South Atlantic Ocean	8	117.7	3	34	0.9× / 8.8
Exercises · South China Seasurge	8	108.5	5	35	2.2× / 3.6
Exercises · South Atlantic Ocean	8	69	2	33	0.9× / 8.6
Missiles · North Pacific Ocean	8	61.6	0	—	0.8× / 9.4
Exercises · Arabian Sea	8	57.3	1	35	1.7× / 4.8
Missiles · North Atlantic Ocean	8	35.5	1	27	1.9× / 4.2
Nav aids · North Sealong running	7	400.8	12	668	0.7× / 9.8
Incidents · Caribbean Seasurge	7	72.4	2	57	3.9× / 1.8
Exercises · Baltic Sea	7	20.6	1	29	1.8× / 3.8
Incidents · South Pacific Ocean	7	6.7	0	—	1.9× / 3.6
Nav aids · North Pacific Oceansurgelong running	6	210	7	663	2.7× / 2.2
Nav aids · South Atlantic Ocean	6	145.6	6	203	0.9× / 7
Nav aids · Inner Seas off the West Coast of Scotlandsurgelong running	6	105.7	3	453	3.3× / 1.8
Exercises · Gulf of Mexicosurge	6	19.9	1	26	15× / 0.4
Incidents · Davis Straitsurge	6	6	1	29	7.5× / 0.8
Incidents · Gulf of Mexicosurge	5	46.9	1	29	4.2× / 1.2
Derelicts · South Pacific Oceansurgelong running	5	45	1	825	8.3× / 0.6
Exercises · South Pacific Ocean	5	35	0	—	0.8× / 6
Incidents · Philippine Sea	5	18.1	0	—	1.6× / 3.2
Exercises · Mediterranean Sea - Eastern Basin	5	11.2	0	—	1.8× / 2.8
Incidents · Coral Sea	5	4.7	0	—	1.7× / 3
Nav aids · North Atlantic Oceanlong running	4	337.6	11	544	0.5× / 8
Nav aids · Gulf of Mexicolong running	4	147.7	6	1,057	1.5× / 2.6
Surveys · North Atlantic Oceansurge	4	99	4	119	2.2× / 1.8
Exercises · Bay of Bengal	4	80.1	1	35	0.6× / 7.2
Cable ops · North Sea	4	74	2	63	1.1× / 3.8
Cable ops · Caribbean Seasurge	4	40.7	1	136	2.9× / 1.4
Missiles · Laptev Seanew	4	32.2	0	—	new / 0
Icebergs · South Atlantic Ocean	4	12	0	—	1.3× / 3.2
Surveys · Labrador Seanew	4	3.2	0	—	new / 0
Surveys · Kara Seasurge	3	194.9	4	69	15× / 0.2
Exercises · Aegean Seasurge	3	70.9	3	271	2.1× / 1.4
Nav aids · Irish Sea and St. George's Channel	3	61.8	2	157	1.1× / 2.8
Spills · Gulf of Mexico	3	51	1	38	0.8× / 3.8
Cable ops · Eastern China Seasurge	3	45.4	1	24	15× / 0.2
Incidents · Japan Seasurge	3	37.6	1	28	7.5× / 0.4
Nav aids · Gulf of Alaska	3	35.5	1	83	1.1× / 2.6
Cable ops · Laptev Seasurge	3	33	2	28	3.8× / 0.8
Spills · North Atlantic Oceansurge	3	33	2	33	3.0× / 1
Cable ops · Inner Seas off the West Coast of Scotlandnew	3	28.4	1	33	new / 0
Piracy · South China Sea	3	24.3	1	12	1.3× / 2.4
Missiles · Barentsz Sea	3	23.1	0	—	1.3× / 2.4
Missiles · Arabian Seanew	3	16.7	0	—	new / 0
Incidents · Arabian Seasurge	3	15.6	1	26	2.5× / 1.2
Exercises · Indian Ocean	3	13.3	0	—	0.9× / 3.4
Incidents · Java Seasurge	3	10.1	0	—	7.5× / 0.4
Exercises · Bering Seasurge	3	9	0	—	2.5× / 1.2
Quakes · Molukka Seasurge	3	9	0	—	7.5× / 0.4
Quakes · Solomon Seasurge	3	9	0	—	3.0× / 1
Derelicts · Gulf of Mexicosurge	3	7.6	0	—	15× / 0.2
Missiles · Black Sea	3	7.1	0	—	0.9× / 3.2
Surveys · Mediterranean Sea - Western Basinnew	3	6.8	0	—	new / 0
Incidents · Bay of Bengalsurge	3	4.4	1	21	3.8× / 0.8
Cable ops · South China Sea	2	172.5	5	131	0.4× / 4.6
Cable ops · Kara Sea	2	168.6	4	311	10× / 0.2
Surveys · South Atlantic Ocean	2	121.8	4	77	0.8× / 2.6
Other · South China Sealong running	2	117.9	5	405	5.0× / 0.4
Exercises · Philippine Sea	2	117.8	2	42	0.3× / 5.8
Other · North Sealong running	2	85.9	4	748	1.7× / 1.2
Nav aids · Celtic Sealong running	2	62.8	3	705	10× / 0.2
Nav aids · Coral Sea	2	62.7	2	165	0.5× / 4.2
Nav aids · Bay of Bengal	2	61.8	4	207	2.0× / 1
Cable ops · Philippine Sea	2	47.5	2	49	5.0× / 0.4
Cable ops · Gulf of Mexico	2	43.4	3	242	0.8× / 2.4
Derelicts · North Atlantic Ocean	2	36.6	1	41	0.8× / 2.4
Cable ops · Mediterranean Sea - Eastern Basin	2	30	1	39	0.7× / 2.8
Other · Hudson Strait	2	28.6	2	14	5.0× / 0.4
Other · Mediterranean Sea - Eastern Basin	2	28.4	1	167	1.1× / 1.8
Spills · The Coastal Waters of Southeast Alaska and British Columbia	2	28	0	—	5.0× / 0.4
Cable ops · Banda Seanew	2	27	1	27	new / 0
Other · Black Sea	2	25.9	1	22	2.0× / 1
Restricted · Barentsz Seanew	2	15.1	0	—	new / 0
Exercises · Red Sea	2	12.5	0	—	2.5× / 0.8
Incidents · Mozambique Channel	2	11.8	0	—	1.1× / 1.8
Surveys · North Sea	2	6.4	1	5	1.0× / 2
Derelicts · Mediterranean Sea - Eastern Basinnew	2	6	0	—	new / 0
Derelicts · North Pacific Ocean	2	6	0	—	0.8× / 2.4
Quakes · North Pacific Ocean	2	6	0	—	0.2× / 8.8
Quakes · Philippine Sea	2	6	0	—	3.3× / 0.6
Nav aids · Bay of Biscaynew	2	4.7	0	—	new / 0
Exercises · Gulf of Alaska	2	4.4	0	—	10× / 0.2
Incidents · Tasman Sea	2	0.5	0	—	2.0× / 1
Incidents · The Northwestern Passages	2	0.4	0	—	2.5× / 0.8
Nav aids · Caribbean Sealong running	1	228.7	4	492	new / 0
Surveys · Arctic Oceanlong running	1	156.8	6	1,436	1.7× / 0.6
Nav aids · Arabian Sealong running	1	131.4	4	1,208	0.6× / 1.6
Nav aids · Kara Sealong running	1	70.1	2	1,119	5.0× / 0.2
Surveys · Caribbean Sea	1	66.3	2	97	new / 0
Wrecks · North Atlantic Oceanlong running	1	64.2	3	1,088	2.5× / 0.4
Nav aids · English Channellong running	1	62.8	2	908	0.3× / 3.6
Other · Indian Ocean	1	61	3	233	1.7× / 0.6
Surveys · Black Sea	1	60.3	2	108	1.0× / 1
Wrecks · Coral Sea	1	58.7	2	307	2.5× / 0.4
Towing · Barentsz Sea	1	47.4	1	113	new / 0
Exercises · Laccadive Sea	1	44.6	0	—	0.3× / 3.6
Incidents · Mediterranean Sea - Western Basin	1	44.1	0	—	5.0× / 0.2
Ordnance · North Sealong running	1	43.6	2	1,042	1.7× / 0.6
Surveys · North Pacific Ocean	1	40.6	0	—	2.5× / 0.4
Cable ops · Barentsz Sea	1	40.2	2	112	0.8× / 1.2
Other · Persian Gulf	1	36.5	2	125	2.5× / 0.4
Cable ops · Bay of Bengal	1	30	1	43	new / 0
Surveys · Sea of Azov	1	30	1	81	new / 0
Surveys · Chukchi Sealong running	1	29.9	1	666	5.0× / 0.2
Surveys · Mediterranean Sea - Eastern Basin	1	27.6	1	27	1.0× / 1
Cable ops · Sulu Sea	1	21.8	1	21	new / 0
Incidents · Bay of Biscay	1	21.2	1	21	1.7× / 0.6
Cable ops · Norwegian Sea	1	18.9	0	—	1.7× / 0.6
Incidents · English Channel	1	14.5	1	14	new / 0
Spills · Bering Sea	1	14	0	—	2.5× / 0.4
Spills · Gulf of Alaska	1	14	0	—	new / 0
Spills · Philippine Sea	1	14	0	—	2.5× / 0.4
Cable ops · East Siberian Sea	1	12.4	1	12	1.7× / 0.6
Missiles · Laccadive Sea	1	11.8	0	—	2.5× / 0.4
Structures · Persian Gulf	1	11.6	1	11	new / 0
Other · Arctic Ocean	1	11.2	1	11	new / 0
Surveys · Persian Gulf	1	10.6	0	—	new / 0
Piracy · Gulf of Guinea	1	9.9	0	—	2.5× / 0.4
Piracy · Bay of Bengal	1	9.1	0	—	new / 0
Spills · Caribbean Sea	1	8	1	8	5.0× / 0.2
Other · English Channel	1	7.6	0	—	5.0× / 0.2
Surveys · Andaman or Burma Sea	1	7.4	0	—	new / 0
Cable ops · Arctic Ocean	1	7.4	1	7	1.3× / 0.8
Piracy · Malacca Strait	1	6.9	0	—	new / 0
Nav aids · South Pacific Ocean	1	6.8	0	—	0.8× / 1.2
Exercises · Timor Sea	1	6.4	0	—	new / 0
Missiles · White Sea	1	6	0	—	1.7× / 0.6
Missiles · South Pacific Ocean	1	5.7	0	—	5.0× / 0.2
Wrecks · Mediterranean Sea - Eastern Basin	1	4.8	0	—	new / 0
Other · Irish Sea and St. George's Channel	1	4.6	1	4	new / 0
Missiles · Persian Gulf	1	4.4	0	—	new / 0
Cable ops · Arabian Sea	1	4.3	1	4	new / 0
Ordnance · North Pacific Ocean	1	4.2	0	—	5.0× / 0.2
Exercises · Gulf of Finland	1	3.2	0	—	new / 0
Quakes · Andaman or Burma Sea	1	3	0	—	5.0× / 0.2
Debris · Caribbean Sea	1	3	0	—	new / 0
Debris · Coral Sea	1	3	0	—	new / 0
Icebergs · Davis Strait	1	3	0	—	new / 0
Debris · Kara Sea	1	3	0	—	new / 0
Incidents · Red Sea	1	3	0	—	5.0× / 0.2
Quakes · Sea of Okhotsk	1	3	0	—	new / 0
Quakes · South Atlantic Ocean	1	3	0	—	1.7× / 0.6
Missiles · Bay of Bengal	1	2.9	0	—	1.3× / 0.8
Derelicts · Irish Sea and St. George's Channel	1	2.9	0	—	new / 0
Surveys · Celtic Sea	1	2.8	0	—	5.0× / 0.2
Wrecks · Philippine Sea	1	2.7	0	—	new / 0
Exercises · Caribbean Sea	1	2	0	—	5.0× / 0.2
Other · Coral Sea	1	2	1	2	1.7× / 0.6
Quakes · Indian Ocean	1	1.2	1	32	0.4× / 2.6
Other · Labrador Sea	1	1.1	0	—	new / 0
Towing · Kara Sea	1	1	0	—	new / 0
Incidents · Savu Sea	1	0.7	0	—	5.0× / 0.2
Incidents · Bismarck Sea	1	0.5	1	0	2.5× / 0.4
Other · The Northwestern Passages	1	0.5	0	—	5.0× / 0.2
Other · Gulf of Alaska	1	0.4	0	—	new / 0
Incidents · Timor Sea	1	0.3	0	—	1.0× / 1
Incidents · Arafura Sea	1	0.2	0	—	0.8× / 1.2
Derelicts · Indian Ocean	1	0.2	0	—	0.5× / 2.2
Other · Philippine Sea	1	0.2	0	—	5.0× / 0.2
Incidents · Solomon Sea	1	0.2	0	—	1.7× / 0.6
Derelicts · South China Sea	1	0.2	0	—	0.8× / 1.2
Wrecks · Arabian Sealong running	0	181.5	6	530	0.0× / 1
Surveys · Beaufort Sealong running	0	150	5	1,511	0.0× / 0.2
Structures · North Sealong running	0	120	4	1,142	0.0× / 0.2
Wrecks · North Sealong running	0	120	4	568	— / 0
Nav aids · South China Sealong running	0	120	4	1,142	— / 0
Restricted · North Sealong running	0	90	3	1,135	0.0× / 0.2
Surveys · The Northwestern Passageslong running	0	85	1	785	0.0× / 0.8
Wrecks · Persian Gulflong running	0	72.4	2	659	0.0× / 0.8
Nav aids · Gulf of Californialong running	0	64.7	2	503	0.0× / 0.4
Nav aids · Indian Oceanlong running	0	60	2	467	0.0× / 1.6
Exercises · Ionian Sea	0	60	2	271	0.0× / 0.4
Nav aids · Laccadive Sealong running	0	60	2	522	0.0× / 0.6
War risk · Mediterranean Sea - Eastern Basinlong running	0	60	2	1,224	— / 0
Other · North Pacific Oceanlong running	0	60	2	897	0.0× / 1
Nav aids · Persian Gulflong running	0	60	2	447	— / 0
Volcanic · Philippine Sealong running	0	60	2	884	— / 0
Nav aids · Sea of Okhotsklong running	0	60	2	1,015	0.0× / 0.2
Nav aids · Singapore Straitlong running	0	60	2	428	— / 0
Surveys · South China Sea	0	60	1	91	— / 0
Wrecks · South China Sea	0	60	2	141	0.0× / 0.2
Wrecks · South Pacific Oceanlong running	0	60	2	366	0.0× / 0.2
Nav aids · Southern Ocean	0	38.9	0	—	— / 0
Cable ops · Persian Gulf	0	33	1	126	0.0× / 1.2
Cable ops · Sea of Okhotsk	0	32	0	—	0.0× / 0.8
Missiles · Aegean Sea	0	30	1	271	0.0× / 0.2
Nav aids · Andaman or Burma Sea	0	30	1	175	0.0× / 0.2
Structures · Arabian Sea	0	30	1	69	— / 0

Cite: seahazards.com Sea Ledger, 2014-09, 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.