Sea Ledger, December 2014

2014-12-01 to 2014-12-31 · archive

issued: 502
warning-days in force: 9,997
in force at month end: 296
sea × type cells: 244

baseline: same month, previous 5 years (2013-12, 2012-12, 2011-12, 2010-12, 2009-12)

By type

type	issued	warning-days	in force at end
Incidents	141	974.9	36
Exercises	95	847	18
Nav aids	56	2,793.6	85
Icebergs	39	53.8	4
Cable ops	34	1,326.6	37
Quakes	30	85.8	5
Derelicts	24	118.5	4
Other	21	678.4	17
Missiles	19	149.8	1
Surveys	13	1,038.9	33
Debris	11	35.1	0
Spills	10	138	2
Containers	3	6.7	0
Restricted	2	132.5	4
Piracy	2	20.5	0
Structures	1	231.6	8
Towing	1	17.5	0
Wrecks	0	1,100.1	34
War risk	0	62	2
Ordnance	0	124	4
Volcanic	0	62	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Icebergs · Labrador Seasurge	30	32.6	2	32	3.3× / 9
Incidents · North Pacific Ocean	27	158.3	2	41	1.2× / 21.8
Incidents · South China Sea	24	117.4	6	52	1.8× / 13.6
Exercises · North Pacific Ocean	21	91.7	2	65	1.7× / 12.2
Incidents · North Atlantic Ocean	19	299.3	11	55	1.2× / 16.2
Exercises · Yellow Seasurge	15	118.3	6	35	2.1× / 7.2
Incidents · Mediterranean Sea - Eastern Basinsurge	15	74.5	1	33	5.8× / 2.6
Cable ops · South Atlantic Ocean	13	198.6	5	139	0.3× / 39.4
Exercises · South Atlantic Ocean	11	59.7	0	—	1.3× / 8.2
Nav aids · North Atlantic Oceanlong running	10	403.8	8	636	1.2× / 8.2
Incidents · South Pacific Ocean	10	67.1	2	33	1.9× / 5.2
Nav aids · North Sealong running	8	473.1	15	760	0.4× / 18.6
Derelicts · Ionian Seasurge	8	11.7	1	25	40× / 0.2
Incidents · Caribbean Sea	7	64.1	4	33	1.7× / 4.2
Quakes · North Pacific Ocean	7	21	0	—	1.3× / 5.4
Icebergs · South Atlantic Ocean	7	17.4	1	29	1.8× / 4
Other · North Seasurgelong running	6	178.2	6	840	7.5× / 0.8
Nav aids · South Atlantic Ocean	6	137.8	5	295	1.0× / 6
Exercises · Arabian Sea	6	61.9	1	36	0.9× / 7
Quakes · South Pacific Ocean	6	16.1	1	19	0.7× / 9.2
Nav aids · Inner Seas off the West Coast of Scotlandlong running	5	125	4	545	0.9× / 5.4
Nav aids · Irish Sea and St. George's Channelsurge	5	77.7	2	152	3.1× / 1.6
Exercises · Bay of Bengal	5	77	2	35	0.6× / 7.8
Spills · Gulf of Mexicosurge	5	49	2	44	3.1× / 1.6
Exercises · North Atlantic Ocean	5	46.8	0	—	1.3× / 4
Missiles · North Atlantic Ocean	5	30.8	0	—	1.9× / 2.6
Exercises · Gulf of Mexiconew	5	10.8	0	—	new / 0
Exercises · Mediterranean Sea - Eastern Basin	5	7.8	0	—	1.6× / 3.2
Incidents · Coral Sea	5	3.2	0	—	1.1× / 4.6
Incidents · Philippine Seasurge	5	1.3	0	—	2.5× / 2
Surveys · South Atlantic Ocean	4	188.5	6	154	1.0× / 4
Cable ops · North Pacific Oceansurge	4	83	1	37	6.7× / 0.6
Exercises · Black Seasurge	4	46.4	0	—	2.5× / 1.6
Nav aids · Great Australian Bightsurge	4	28.7	1	29	5.0× / 0.8
Missiles · Bay of Bengalsurge	4	18.6	0	—	6.7× / 0.6
Cable ops · North Atlantic Ocean	3	176.9	5	284	0.7× / 4.6
Cable ops · South China Sea	3	170.8	5	117	1.7× / 1.8
Surveys · Gulf of Suezsurge	3	44.2	2	48	15× / 0.2
Derelicts · North Atlantic Ocean	3	39.5	1	133	0.8× / 4
Exercises · South China Sea	3	33.8	3	40	1.1× / 2.8
Missiles · North Pacific Ocean	3	18.7	0	—	0.6× / 5.4
Cable ops · Aegean Seasurge	3	12	1	9	15× / 0.2
Incidents · Java Seasurge	3	11.8	1	26	15× / 0.2
Debris · Timor Seanew	3	11.1	0	—	new / 0
Quakes · South Atlantic Oceansurge	3	8.3	1	20	2.1× / 1.4
Containers · South China Seasurge	3	6.2	0	—	15× / 0.2
Incidents · Indian Ocean	3	2.9	0	—	0.4× / 7.2
Incidents · Mozambique Channelsurge	3	1.7	2	12	2.5× / 1.2
Nav aids · Gulf of Mexico	2	124.4	4	319	0.8× / 2.6
Nav aids · North Pacific Oceanlong running	2	107.3	4	755	0.8× / 2.6
Nav aids · Celtic Sealong running	2	68.2	3	797	0.6× / 3.2
Other · North Atlantic Oceanlong running	2	58.8	1	415	2.5× / 0.8
Exercises · Philippine Sea	2	40.4	1	35	0.8× / 2.6
Incidents · Arabian Sea	2	27.1	1	64	1.7× / 1.2
Exercises · Red Sea	2	19	0	—	10× / 0.2
Incidents · Ionian Sea	2	16	0	—	5.0× / 0.4
Piracy · South China Sea	2	15	0	—	5.0× / 0.4
Other · Gulf of Mexiconew	2	12	0	—	new / 0
Exercises · Indian Ocean	2	11.3	0	—	1.4× / 1.4
Exercises · Alboran Sea	2	8.7	0	—	10× / 0.2
Restricted · Barentsz Seanew	2	8.5	0	—	new / 0
Missiles · Barentsz Sea	2	7.8	0	—	0.7× / 2.8
Quakes · Molukka Sea	2	7.8	0	—	2.5× / 0.8
Quakes · Banda Sea	2	6	0	—	1.3× / 1.6
Derelicts · Chukchi Seanew	2	6	0	—	new / 0
Derelicts · Coral Sea	2	6	0	—	3.3× / 0.6
Quakes · Solomon Sea	2	6	0	—	2.0× / 1
Debris · South Pacific Ocean	2	6	0	—	2.5× / 0.8
Exercises · South Pacific Ocean	2	6	0	—	1.7× / 1.2
Derelicts · Tasman Sea	2	6	0	—	5.0× / 0.4
Incidents · Adriatic Sea	2	5.1	2	3	5.0× / 0.4
Icebergs · Southern Ocean	2	3.8	1	6	1.4× / 1.4
Nav aids · The Coastal Waters of Southeast Alaska and British Columbia	2	2.2	0	—	2.0× / 1
Derelicts · Mediterranean Sea - Eastern Basinnew	2	2.1	1	26	new / 0
Incidents · Davis Strait	2	0	0	—	3.3× / 0.6
Nav aids · Caribbean Sealong running	1	200	7	584	5.0× / 0.2
Cable ops · Gulf of Mexico	1	186	6	334	0.8× / 1.2
Nav aids · Arabian Sealong running	1	116.5	4	915	1.0× / 1
Nav aids · English Channellong running	1	93.8	2	1,000	0.6× / 1.8
Nav aids · Coral Sea	1	88.6	3	257	0.5× / 2
Exercises · Aegean Sea	1	83.8	1	363	0.2× / 4.2
Exercises · Ionian Sea	1	71.6	2	363	5.0× / 0.2
Cable ops · Caribbean Sea	1	70.9	3	99	0.7× / 1.4
Nav aids · Mediterranean Sea - Western Basin	1	67.9	1	76	5.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	1	67.6	2	119	1.7× / 0.6
Nav aids · Kara Sealong running	1	64.4	3	1,211	5.0× / 0.2
Cable ops · Arabian Sea	1	59.6	1	50	0.4× / 2.6
Nav aids · Indian Ocean	1	54.4	2	315	0.8× / 1.2
Exercises · Laccadive Sea	1	38.6	0	—	0.5× / 2
Cable ops · Eastern China Sea	1	38.5	1	54	1.7× / 0.6
Other · Indian Ocean	1	34.7	1	325	1.3× / 0.8
Surveys · Mediterranean Sea - Western Basin	1	33.3	1	31	5.0× / 0.2
Nav aids · Eastern China Sealong running	1	31.4	1	1,051	new / 0
Surveys · Mediterranean Sea - Eastern Basin	1	31	1	41	0.6× / 1.8
Surveys · Indian Ocean	1	28	1	54	1.3× / 0.8
Spills · North Atlantic Ocean	1	24	0	—	0.8× / 1.2
Surveys · Andaman or Burma Sea	1	19.5	1	19	2.5× / 0.4
Incidents · Bay of Bengal	1	18.5	1	41	0.7× / 1.4
Other · Mediterranean Sea - Western Basin	1	18.5	0	—	5.0× / 0.2
Towing · Barentsz Sea	1	17.5	0	—	new / 0
Incidents · Bering Sea	1	15.4	0	—	new / 0
Incidents · Andaman or Burma Sea	1	14.6	1	14	1.7× / 0.6
Structures · Gulf of Suez	1	14.6	1	48	5.0× / 0.2
Surveys · Persian Gulf	1	14.6	1	14	new / 0
Other · South Pacific Ocean	1	14.1	1	14	5.0× / 0.2
Spills · Bay of Bengal	1	14	0	—	new / 0
Spills · Bay of Fundy	1	14	0	—	new / 0
Spills · Bering Sea	1	14	0	—	1.0× / 1
Spills · North Pacific Ocean	1	14	0	—	2.5× / 0.4
Other · Gulf of Suez	1	13.5	0	—	new / 0
Cable ops · Andaman or Burma Sea	1	11.5	0	—	1.3× / 0.8
Incidents · Mediterranean Sea - Western Basin	1	11.5	1	11	1.7× / 0.6
Cable ops · South Pacific Ocean	1	11.3	1	11	2.5× / 0.4
Other · Bay of Biscay	1	10.2	0	—	new / 0
Incidents · Gulf of Mexico	1	9.3	0	—	1.0× / 1
Surveys · South China Sea	1	8.9	0	—	new / 0
Exercises · Coral Sea	1	7.6	0	—	1.3× / 0.8
Missiles · Indian Ocean	1	7.5	0	—	2.5× / 0.4
Incidents · Celtic Sea	1	7.2	0	—	5.0× / 0.2
Other · Philippine Sea	1	6.8	0	—	new / 0
Missiles · Philippine Sea	1	5.9	0	—	1.3× / 0.8
Exercises · Baltic Sea	1	5.8	0	—	0.8× / 1.2
Missiles · South Pacific Ocean	1	5.4	0	—	2.5× / 0.4
Missiles · Gulf of Guinea	1	5.2	0	—	new / 0
Missiles · Laccadive Sea	1	4.8	0	—	0.8× / 1.2
Cable ops · Mediterranean Sea - Western Basin	1	4.8	0	—	5.0× / 0.2
Nav aids · Gulf of Alaska	1	4.7	0	—	0.5× / 2.2
Cable ops · Indian Ocean	1	4.7	0	—	0.8× / 1.2
Incidents · South Atlantic Ocean	1	3.6	0	—	0.2× / 4.2
Incidents · Banda Sea	1	3.3	0	—	new / 0
Debris · Bay of Bengal	1	3	0	—	new / 0
Debris · Bering Sea	1	3	0	—	new / 0
Debris · Caribbean Sea	1	3	0	—	new / 0
Quakes · Caribbean Sea	1	3	0	—	new / 0
Quakes · Celebes Sea	1	3	0	—	new / 0
Other · Celtic Sea	1	3	0	—	new / 0
Other · Coral Sea	1	3	0	—	1.3× / 0.8
Quakes · Eastern China Sea	1	3	0	—	new / 0
Derelicts · Gulf of Mexico	1	3	0	—	0.8× / 1.2
Derelicts · Indian Ocean	1	3	0	—	0.4× / 2.4
Quakes · Indian Ocean	1	3	0	—	0.4× / 2.8
Debris · North Atlantic Ocean	1	3	0	—	1.7× / 0.6
Debris · North Pacific Ocean	1	3	0	—	5.0× / 0.2
Debris · North Sea	1	3	0	—	5.0× / 0.2
Derelicts · Red Sea	1	3	0	—	new / 0
Quakes · Tasman Sea	1	3	0	—	5.0× / 0.2
Other · Irish Sea and St. George's Channel	1	2.8	0	—	5.0× / 0.2
Derelicts · North Pacific Ocean	1	2.6	0	—	0.6× / 1.6
Quakes · Sulu Sea	1	2.6	1	2	new / 0
Incidents · Persian Gulf	1	2.4	1	2	5.0× / 0.2
Derelicts · Banda Sea	1	2.2	0	—	new / 0
Incidents · Flores Sea	1	2.1	0	—	new / 0
Quakes · Bismarck Sea	1	0.9	1	0	5.0× / 0.2
Nav aids · South Pacific Ocean	1	0.8	0	—	0.8× / 1.2
Quakes · Philippine Sea	1	0.6	1	0	0.5× / 2
Other · Tasman Sea	1	0.1	0	—	5.0× / 0.2
Incidents · Gulf of Thailand	1	0	0	—	5.0× / 0.2
Incidents · Tasman Sea	1	0	0	—	1.7× / 0.6
Wrecks · Arabian Sealong running	0	279	9	622	0.0× / 1
Surveys · Arctic Oceanlong running	0	206.4	6	1,528	— / 0
Surveys · Beaufort Sealong running	0	155	5	1,603	— / 0
Structures · North Sealong running	0	124	4	1,234	— / 0
Wrecks · North Sealong running	0	124	4	660	0.0× / 0.6
Nav aids · South China Sealong running	0	124	4	1,234	— / 0
Surveys · North Atlantic Ocean	0	93	3	211	0.0× / 1
Wrecks · North Atlantic Oceanlong running	0	93	3	1,180	— / 0
Ordnance · North Sealong running	0	93	3	1,134	0.0× / 0.4
Restricted · North Sealong running	0	93	3	1,227	0.0× / 0.2
Other · North Pacific Oceanlong running	0	81.5	2	989	0.0× / 0.8
Wrecks · South China Sea	0	71.6	1	233	— / 0
Surveys · Caribbean Sea	0	62	2	189	— / 0
Nav aids · Gulf of Californialong running	0	62	2	595	— / 0
Cable ops · Gulf of Guinea	0	62	2	70	0.0× / 2.4
War risk · Mediterranean Sea - Eastern Basinlong running	0	62	2	1,316	— / 0
Nav aids · Persian Gulflong running	0	62	2	539	— / 0
Volcanic · Philippine Sealong running	0	62	2	976	0.0× / 0.8
Nav aids · Sea of Okhotsklong running	0	62	2	1,107	0.0× / 0.4
Other · South China Sealong running	0	62	2	497	0.0× / 0.8
Cable ops · Philippine Sea	0	46	1	57	0.0× / 0.2
Surveys · Coral Sealong running	0	42	1	434	— / 0
Derelicts · South Pacific Oceanlong running	0	33.4	1	917	0.0× / 1.4
Nav aids · Singapore Straitlong running	0	31.5	1	520	0.0× / 0.2
Missiles · Aegean Sea	0	31	1	363	0.0× / 0.4
Nav aids · Andaman or Burma Sea	0	31	1	76	— / 0
Structures · Arabian Sea	0	31	1	161	— / 0
Wrecks · Arctic Oceanlong running	0	31	1	495	— / 0
Cable ops · Barentsz Sea	0	31	1	102	— / 0
Wrecks · Barentsz Sea	0	31	1	252	— / 0
Nav aids · Bass Straitlong running	0	31	1	639	— / 0
Nav aids · Bay of Bengal	0	31	1	299	0.0× / 0.2
Wrecks · Bay of Bengal	0	31	1	141	0.0× / 0.2
Surveys · Bering Sea	0	31	1	180	— / 0
Cable ops · Black Sea	0	31	1	90	0.0× / 1.2
Restricted · Black Sealong running	0	31	1	574	— / 0
Wrecks · Caribbean Sea	0	31	1	78	— / 0
Surveys · Chukchi Sea	0	31	1	98	0.0× / 0.4
Wrecks · Coral Sealong running	0	31	1	399	— / 0
Wrecks · East Siberian Sea	0	31	1	71	— / 0
Wrecks · Eastern China Sealong running	0	31	1	425	— / 0
Wrecks · English Channel	0	31	1	161	0.0× / 0.4

Cite: seahazards.com Sea Ledger, 2014-12, 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.