Sea Ledger, November 2014

2014-11-01 to 2014-11-30 · archive

issued: 547
warning-days in force: 10,339
in force at month end: 338
sea × type cells: 248

baseline: same month, previous 5 years (2013-11, 2012-11, 2011-11, 2010-11, 2009-11)

By type

type	issued	warning-days	in force at end
Incidents	146	856.4	32
Exercises	104	985.8	26
Nav aids	62	2,744.1	90
Cable ops	53	1,450.7	48
Missiles	35	197.5	9
Quakes	32	94.2	2
Icebergs	30	43.3	2
Derelicts	22	113.6	5
Surveys	20	1,255.1	37
Other	16	650.3	21
Piracy	7	57	2
Spills	5	81	3
Debris	5	16	1
Wrecks	4	1,144.2	37
Containers	3	8.5	1
Structures	1	227.6	8
Ordnance	1	125	4
Towing	1	18.3	1
Restricted	0	150	5
War risk	0	60	2
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	174.6	3	76	1.5× / 25.8
Cable ops · South Atlantic Ocean	24	258.9	8	108	0.8× / 28.2
Incidents · North Atlantic Ocean	22	154.3	8	72	1.6× / 13.6
Incidents · South China Sea	18	97.8	4	25	1.5× / 12
Exercises · North Pacific Ocean	16	119.9	4	37	1.6× / 10
Icebergs · Labrador Seasurge	15	15.5	2	22	3.4× / 4.4
Nav aids · North Sealong running	14	368.4	15	729	1.1× / 12.4
Exercises · Yellow Sea	13	101.4	3	30	1.8× / 7.2
Incidents · Mediterranean Sea - Eastern Basinsurge	11	60.7	1	34	3.2× / 3.4
Exercises · Bay of Bengal	10	80.2	3	34	1.1× / 9
Exercises · South Atlantic Ocean	10	50.3	1	25	0.8× / 12.2
Incidents · South Pacific Ocean	10	22.1	2	31	1.7× / 6
Quakes · South Pacific Ocean	9	27	0	—	1.0× / 8.8
Quakes · Molukka Seasurge	9	25.2	1	15	15× / 0.6
Incidents · Caribbean Seasurge	8	71.2	1	54	5.0× / 1.6
Exercises · Arabian Sea	8	55.2	1	30	1.1× / 7.2
Derelicts · North Atlantic Ocean	7	47.2	2	102	1.5× / 4.6
Missiles · North Pacific Ocean	7	42.1	1	37	1.1× / 6.6
Missiles · Arabian Seasurge	7	26.6	0	—	35× / 0.2
Cable ops · North Atlantic Ocean	6	169.8	7	253	0.9× / 7
Nav aids · South Atlantic Ocean	6	138.4	4	264	0.7× / 8.2
Nav aids · Irish Sea and St. George's Channel	5	73.9	3	121	1.3× / 4
Nav aids · Coral Sea	5	69.8	2	226	1.8× / 2.8
Exercises · North Atlantic Ocean	5	48.4	1	95	0.9× / 5.8
Exercises · South Pacific Ocean	5	33.5	1	30	1.0× / 5
Incidents · South Atlantic Ocean	5	16.2	2	47	1.0× / 5.2
Surveys · Celtic Seanew	5	12.5	0	—	new / 0
Icebergs · Hudson Baynew	5	5.4	0	—	new / 0
Other · North Seasurgelong running	4	166.5	5	809	5.0× / 0.8
Exercises · South China Sea	4	93.8	2	31	0.9× / 4.6
Exercises · Black Sea	4	75.6	1	30	1.5× / 2.6
Nav aids · Celtic Seasurgelong running	4	72.7	2	766	2.0× / 2
Piracy · Gulf of Guineasurge	4	40.2	1	26	20× / 0.2
Missiles · Norwegian Seasurge	4	29.3	2	14	20× / 0.2
Incidents · Gulf of Mexicosurge	4	26.2	1	21	4.0× / 1
Missiles · Barentsz Sea	4	24.4	0	—	1.3× / 3.2
Exercises · Baltic Seasurge	4	15.5	1	30	2.9× / 1.4
Icebergs · South Atlantic Ocean	4	12	0	—	1.8× / 2.2
Missiles · Indian Oceansurge	4	10.4	1	27	20× / 0.2
Exercises · Mediterranean Sea - Eastern Basin	4	10.2	0	—	1.3× / 3.2
Debris · Timor Seasurge	4	9.9	1	16	10× / 0.4
Icebergs · Hudson Strait	4	4.4	0	—	1.3× / 3.2
Incidents · Coral Sea	4	4.3	0	—	1.4× / 2.8
Nav aids · North Atlantic Oceanlong running	3	369.4	13	605	0.6× / 5.2
Cable ops · South China Sea	3	215.9	5	86	1.4× / 2.2
Surveys · South Atlantic Ocean	3	160.6	5	123	1.1× / 2.8
Nav aids · Gulf of Mexicolong running	3	138.6	4	1,118	0.7× / 4.2
Exercises · Aegean Sea	3	75.1	2	332	1.5× / 2
Spills · Gulf of Mexico	3	52	1	42	1.7× / 1.8
Surveys · Gulf of Suezsurge	3	50.8	2	17	3.8× / 0.8
Derelicts · South Pacific Oceansurgelong running	3	36.6	3	886	2.5× / 1.2
Exercises · Gulf of Mexicosurge	3	34.5	0	—	3.8× / 0.8
Exercises · Laccadive Sea	3	31.8	1	28	0.9× / 3.4
Cable ops · Inner Seas off the West Coast of Scotlandnew	3	25.8	0	—	new / 0
Cable ops · North Pacific Oceansurge	3	24.7	2	32	15× / 0.2
Incidents · Bay of Bengalsurge	3	16.3	2	13	3.0× / 1
Quakes · Indian Oceansurge	3	9	0	—	2.1× / 1.4
Quakes · Solomon Sea	3	9	0	—	1.5× / 2
Incidents · Philippine Sea	3	4.9	0	—	1.3× / 2.4
Missiles · North Atlantic Ocean	3	3.6	3	1	1.1× / 2.8
Incidents · Gulf of Thailandsurge	3	2.1	0	—	3.8× / 0.8
Nav aids · English Channellong running	2	142.7	4	969	0.6× / 3.4
Wrecks · North Sealong running	2	122.9	4	629	3.3× / 0.6
Nav aids · North Pacific Oceanlong running	2	111.1	3	724	0.8× / 2.6
Incidents · Arabian Sea	2	106.5	1	40	1.4× / 1.4
Nav aids · Mediterranean Sea - Western Basin	2	66.1	3	45	1.7× / 1.2
Other · North Atlantic Oceanlong running	2	61	3	384	0.8× / 2.4
Nav aids · Indian Oceanlong running	2	49.8	1	528	1.7× / 1.2
Exercises · Philippine Sea	2	39.4	1	32	0.4× / 5.6
Surveys · North Pacific Ocean	2	38	0	—	1.4× / 1.4
Other · South China Sealong running	2	36.1	2	466	5.0× / 0.4
Cable ops · Philippine Seanew	2	35.3	2	26	new / 0
Cable ops · Arabian Sea	2	33.1	2	19	2.0× / 1
Cable ops · Eastern China Sea	2	32	2	23	5.0× / 0.4
Nav aids · Hudson Bay	2	19.9	2	9	2.5× / 0.8
Cable ops · Indian Ocean	2	17.4	0	—	3.3× / 0.6
Exercises · Caribbean Sea	2	16.6	0	—	10× / 0.2
Cable ops · Irish Sea and St. George's Channel	2	10.8	0	—	5.0× / 0.4
Exercises · Bering Sea	2	7.2	0	—	2.5× / 0.8
Quakes · North Pacific Ocean	2	6	0	—	0.3× / 6.2
Derelicts · South China Sea	2	6	0	—	0.8× / 2.4
Icebergs · Southern Oceannew	2	6	0	—	new / 0
Derelicts · Mediterranean Sea - Eastern Basinnew	2	3.8	0	—	new / 0
Incidents · Eastern China Seanew	2	3.3	2	2	new / 0
Surveys · Mediterranean Sea - Western Basinnew	2	2.4	1	2	new / 0
Nav aids · The Coastal Waters of Southeast Alaska and British Columbia	2	0.8	0	—	2.5× / 0.8
Nav aids · Arabian Sealong running	1	98.2	3	884	new / 0
Surveys · North Atlantic Ocean	1	96.5	3	180	2.5× / 0.4
Nav aids · Inner Seas off the West Coast of Scotlandlong running	1	90.2	3	514	0.2× / 4.4
Cable ops · Gulf of Guinea	1	80.6	2	56	0.3× / 3
Surveys · Indian Ocean	1	69.5	1	39	5.0× / 0.2
Cable ops · Caribbean Sea	1	68.7	3	68	1.0× / 1
Exercises · Ionian Sea	1	64.4	3	332	2.5× / 0.4
Surveys · Mediterranean Sea - Eastern Basin	1	63	1	88	0.5× / 2
Other · North Pacific Oceanlong running	1	61.4	3	958	1.3× / 0.8
Wrecks · Coral Sealong running	1	52.8	1	368	1.7× / 0.6
Other · Mediterranean Sea - Eastern Basin	1	49.3	2	88	1.0× / 1
Surveys · Sea of Azov	1	44	1	60	5.0× / 0.2
Nav aids · Bay of Bengal	1	41.1	1	268	0.8× / 1.2
Nav aids · Mediterranean Sea - Eastern Basin	1	33.3	1	32	new / 0
Nav aids · Bass Straitlong running	1	30.5	1	608	5.0× / 0.2
Other · Gulf of Mexico	1	26.1	0	—	2.5× / 0.4
Cable ops · Singapore Strait	1	24.7	0	—	5.0× / 0.2
Wrecks · Kara Sea	1	24.4	1	24	new / 0
Nav aids · Sea of Azov	1	24.4	1	24	new / 0
Other · Hudson Strait	1	20.3	0	—	new / 0
Incidents · Flores Sea	1	19.6	1	31	new / 0
Incidents · Celtic Sea	1	19	0	—	2.5× / 0.4
Towing · Barentsz Sea	1	18.3	1	18	new / 0
Structures · Gulf of Suez	1	17.6	1	17	new / 0
Exercises · Persian Gulf	1	12.3	0	—	new / 0
Incidents · Andaman or Burma Sea	1	11.9	0	—	2.5× / 0.4
Exercises · English Channel	1	11.2	0	—	new / 0
Spills · Caribbean Sea	1	11	1	38	new / 0
Spills · North Atlantic Ocean	1	11	1	42	0.8× / 1.2
Incidents · Mozambique Channel	1	9.2	0	—	2.5× / 0.4
Cable ops · North Sea	1	8.6	1	45	0.4× / 2.4
Piracy · South China Sea	1	7.2	1	39	0.8× / 1.2
Nav aids · Gulf of Suez	1	6.5	0	—	5.0× / 0.2
Piracy · Singapore Strait	1	6.5	0	—	new / 0
Missiles · Bay of Bengal	1	6.3	0	—	1.0× / 1
Missiles · Laccadive Sea	1	5.9	0	—	1.3× / 0.8
Missiles · South Pacific Ocean	1	5.9	0	—	1.3× / 0.8
Missiles · Arctic Ocean	1	5.2	0	—	2.5× / 0.4
Ordnance · North Pacific Ocean	1	5	0	—	5.0× / 0.2
Exercises · Coral Sea	1	4.9	0	—	0.4× / 2.6
Missiles · Southern Ocean	1	4.6	1	4	5.0× / 0.2
Missiles · South Atlantic Ocean	1	3.2	0	—	0.5× / 2.2
Piracy · Arabian Sea	1	3.1	0	—	0.1× / 8.4
Quakes · Andaman or Burma Sea	1	3	0	—	2.5× / 0.4
Containers · Arafura Sea	1	3	0	—	new / 0
Derelicts · Bay of Bengal	1	3	0	—	1.3× / 0.8
Debris · Caribbean Sea	1	3	0	—	5.0× / 0.2
Derelicts · Caribbean Sea	1	3	0	—	5.0× / 0.2
Derelicts · Gulf of Mexico	1	3	0	—	0.8× / 1.2
Derelicts · Indian Ocean	1	3	0	—	0.4× / 2.8
Derelicts · Ionian Sea	1	3	0	—	new / 0
Quakes · Japan Sea	1	3	0	—	new / 0
Containers · North Atlantic Ocean	1	3	0	—	5.0× / 0.2
Quakes · North Atlantic Ocean	1	3	0	—	1.3× / 0.8
Derelicts · North Pacific Ocean	1	3	0	—	0.4× / 2.8
Quakes · South China Sea	1	3	0	—	1.7× / 0.6
Quakes · Southern Ocean	1	3	0	—	0.6× / 1.8
Incidents · Solomon Sea	1	2.9	0	—	new / 0
Other · Irish Sea and St. George's Channel	1	2.6	0	—	5.0× / 0.2
Containers · Celtic Sea	1	2.5	1	2	new / 0
Exercises · Indian Ocean	1	2.4	1	2	1.0× / 1
Exercises · Celtic Sea	1	2	0	—	new / 0
Other · Caribbean Sea	1	1.8	1	35	5.0× / 0.2
Derelicts · South Atlantic Ocean	1	1.8	0	—	0.6× / 1.6
Incidents · Indian Ocean	1	1.6	1	72	0.1× / 8
Quakes · Arabian Sea	1	1.5	1	1	2.5× / 0.4
Other · Timor Sea	1	1.1	0	—	new / 0
Surveys · North Sea	1	0.9	0	—	1.0× / 1
Nav aids · South Pacific Ocean	1	0.9	0	—	5.0× / 0.2
Incidents · Tyrrhenian Sea	1	0.6	1	0	2.5× / 0.4
Other · Arafura Sea	1	0.5	0	—	new / 0
Nav aids · Gulf of Alaska	1	0.5	0	—	0.5× / 2
Incidents · Arafura Sea	1	0.4	0	—	1.7× / 0.6
Nav aids · Great Australian Bight	1	0.3	0	—	1.3× / 0.8
Incidents · Tasman Sea	1	0.3	0	—	1.3× / 0.8
Incidents · Bass Strait	1	0.2	0	—	1.7× / 0.6
Derelicts · Philippine Sea	1	0.2	0	—	2.5× / 0.4
Incidents · Bay of Biscay	1	0.1	1	0	5.0× / 0.2
Incidents · Java Sea	1	0.1	0	—	new / 0
Incidents · Davis Strait	1	0	0	—	1.3× / 0.8
Wrecks · Arabian Sealong running	0	276.5	9	591	0.0× / 0.2
Nav aids · Caribbean Sealong running	0	236.8	7	553	0.0× / 0.4
Surveys · Arctic Oceanlong running	0	210	7	1,497	— / 0
Cable ops · Gulf of Mexico	0	180.4	6	303	0.0× / 2
Surveys · Beaufort Sealong running	0	150	5	1,572	— / 0
Structures · North Sealong running	0	120	4	1,203	— / 0
Nav aids · South China Sealong running	0	120	4	1,203	0.0× / 0.2
Surveys · Coral Sealong running	0	90	3	403	— / 0
Wrecks · North Atlantic Oceanlong running	0	90	3	1,149	— / 0
Ordnance · North Sealong running	0	90	3	1,103	0.0× / 0.8
Restricted · North Sealong running	0	90	3	1,196	— / 0
Wrecks · South China Sea	0	90	3	202	0.0× / 0.4
Other · Indian Ocean	0	80.3	2	294	0.0× / 0.2
Surveys · Caribbean Sea	0	69.9	2	158	0.0× / 0.2
Nav aids · Gulf of Californialong running	0	60	2	564	0.0× / 1
Nav aids · Kara Sealong running	0	60	2	1,180	— / 0
War risk · Mediterranean Sea - Eastern Basinlong running	0	60	2	1,285	— / 0
Nav aids · Persian Gulflong running	0	60	2	508	0.0× / 0.2
Volcanic · Philippine Sealong running	0	60	2	945	0.0× / 0.4
Nav aids · Sea of Okhotsklong running	0	60	2	1,076	— / 0
Nav aids · Singapore Straitlong running	0	60	2	489	— / 0
Other · Persian Gulf	0	58	1	67	0.0× / 0.2
Nav aids · Andaman or Burma Sea	0	46.6	1	236	— / 0
Nav aids · Laccadive Sealong running	0	46.6	1	583	0.0× / 0.6
Other · English Channel	0	32.5	1	36	0.0× / 0.4
Missiles · Aegean Sea	0	30	1	332	0.0× / 0.6
Structures · Arabian Sea	0	30	1	130	— / 0
Surveys · Arabian Sealong running	0	30	1	618	0.0× / 0.8
Wrecks · Arctic Oceanlong running	0	30	1	464	— / 0
Incidents · Baffin Bay	0	30	1	31	— / 0
Cable ops · Barentsz Sea	0	30	1	71	— / 0
Wrecks · Barentsz Sea	0	30	1	221	— / 0
Cable ops · Bay of Bengal	0	30	1	88	0.0× / 1.8
Wrecks · Bay of Bengal	0	30	1	110	— / 0

Cite: seahazards.com Sea Ledger, 2014-11, 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.