Sea Ledger, May 2014

2014-05-01 to 2014-05-31 · archive

issued: 544
warning-days in force: 9,277
in force at month end: 298
sea × type cells: 235

baseline: same month, previous 5 years (2013-05, 2012-05, 2011-05, 2010-05, 2009-05)

By type

type	issued	warning-days	in force at end
Incidents	133	901.9	26
Exercises	96	857.7	27
Nav aids	51	2,765.8	87
Quakes	50	145.5	4
Cable ops	46	1,360.7	49
Icebergs	37	45.5	2
Missiles	35	193.7	4
Surveys	33	954.9	32
Derelicts	14	69	1
Other	12	567.3	19
Spills	11	128	6
Containers	9	21.9	1
Piracy	4	47.4	1
Debris	4	11.1	0
Wrecks	3	644.9	21
Ordnance	2	148	5
Volcanic	2	86	2
Restricted	1	124	4
Structures	1	110.6	4
Mines	0	31	1
War risk	0	62	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Incidents · North Pacific Oceansurge	38	144.3	3	45	2.8× / 13.8
Icebergs · North Atlantic Oceansurge	25	25.3	2	31	63× / 0.4
Incidents · North Atlantic Ocean	23	237.7	8	66	1.5× / 15.4
Exercises · North Pacific Oceansurge	22	68.3	1	67	2.2× / 10.2
Quakes · South Pacific Ocean	17	47.9	2	30	1.6× / 10.4
Exercises · Yellow Seasurge	16	117.4	3	38	2.9× / 5.6
Incidents · South China Seasurge	13	67.6	3	41	2.3× / 5.6
Surveys · North Atlantic Oceansurge	13	54.2	2	32	33× / 0.4
Nav aids · North Sealong running	11	329.9	9	546	1.4× / 7.6
Exercises · Black Seasurge	11	86.6	2	31	7.9× / 1.4
Incidents · Mediterranean Sea - Eastern Basinsurge	11	71.1	1	33	6.9× / 1.6
Incidents · South Pacific Ocean	10	39	2	53	1.4× / 7.4
Quakes · North Pacific Ocean	10	27.5	1	29	1.4× / 7.2
Missiles · North Atlantic Ocean	9	24.1	1	26	1.5× / 6
Icebergs · Labrador Sea	9	8.7	0	—	0.8× / 12
Cable ops · North Seasurge	8	140.6	5	140	5.0× / 1.6
Missiles · North Pacific Ocean	8	41.1	1	21	1.1× / 7
Cable ops · North Atlantic Ocean	7	173.8	7	85	1.5× / 4.6
Nav aids · South Atlantic Oceanlong running	6	517	16	1,165	0.8× / 7.2
Nav aids · North Atlantic Oceanlong running	6	256.6	8	422	1.3× / 4.6
Cable ops · South Atlantic Ocean	6	151.7	6	179	0.2× / 31.8
Incidents · Caribbean Sea	6	99.9	2	45	1.9× / 3.2
Surveys · South Atlantic Oceansurge	6	97.1	3	260	2.5× / 2.4
Exercises · Arabian Sea	6	60.7	1	35	1.0× / 5.8
Containers · Celtic Seasurge	6	12.9	1	20	15× / 0.4
Exercises · Aegean Seasurge	5	87.2	6	149	25× / 0.2
Exercises · South China Sea	5	62.8	3	35	1.6× / 3.2
Cable ops · South China Sea	4	142.6	6	190	1.1× / 3.6
Nav aids · North Pacific Oceanlong running	4	104.9	5	541	1.3× / 3.2
Exercises · Bay of Bengal	4	84.1	2	35	0.7× / 5.8
Cable ops · Norwegian Seasurge	4	77.5	3	28	3.3× / 1.2
Nav aids · Coral Sea	4	70	3	43	1.1× / 3.6
Spills · Gulf of Mexico	4	47	2	37	0.9× / 4.4
Nav aids · Irish Sea and St. George's Channelsurge	4	39	1	35	2.2× / 1.8
Incidents · Indian Ocean	4	33.2	1	61	0.5× / 8.6
Incidents · Mozambique Channelsurge	4	26.5	1	23	4.0× / 1
Quakes · Indian Ocean	4	12	0	—	1.5× / 2.6
Incidents · Coral Sea	4	0.3	0	—	0.9× / 4.4
Nav aids · Gulf of Mexicolong running	3	129.5	4	935	0.6× / 5.2
Exercises · Philippine Sea	3	47.6	2	35	0.5× / 5.6
Exercises · Gulf of Mexicosurge	3	35.9	3	11	2.5× / 1.2
Incidents · Gulf of Mexico	3	31	1	30	0.9× / 3.2
Incidents · South Atlantic Ocean	3	26.5	0	—	0.6× / 5.2
Spills · North Pacific Ocean	3	25	3	11	1.7× / 1.8
Missiles · Arctic Oceansurge	3	19.4	0	—	7.5× / 0.4
Missiles · Barentsz Seasurge	3	18.5	0	—	3.0× / 1
Exercises · South Pacific Ocean	3	13.2	0	—	0.7× / 4.4
Quakes · South Atlantic Oceansurge	3	11.7	0	—	3.8× / 0.8
Icebergs · Southern Oceansurge	3	11.5	0	—	2.1× / 1.4
Quakes · North Atlantic Oceansurge	3	9	0	—	5.0× / 0.6
Debris · North Pacific Oceansurge	3	8.1	0	—	7.5× / 0.4
Quakes · Philippine Sea	3	7.4	1	10	1.3× / 2.4
Derelicts · North Atlantic Ocean	3	7.1	0	—	0.8× / 3.8
Exercises · Bering Sea	3	6	0	—	1.5× / 2
Surveys · Celtic Seanew	3	2.8	0	—	new / 0
Surveys · Black Sea	2	134.3	4	58	1.7× / 1.2
Other · North Sealong running	2	102	3	626	1.4× / 1.4
Nav aids · Indian Ocean	2	93.7	3	345	2.0× / 1
Other · South China Sea	2	78.3	4	283	5.0× / 0.4
Cable ops · South Pacific Ocean	2	68	2	112	5.0× / 0.4
Cable ops · Persian Gulf	2	66.5	3	211	1.7× / 1.2
Nav aids · English Channellong running	2	65.5	2	786	0.8× / 2.4
Cable ops · Gulf of Mexico	2	59.4	2	140	0.6× / 3.2
Cable ops · Mediterranean Sea - Eastern Basin	2	46	1	116	1.1× / 1.8
Exercises · Laccadive Sea	2	35.1	1	33	0.6× / 3.6
Exercises · Red Seanew	2	16.5	0	—	new / 0
Piracy · South China Sea	2	16.1	0	—	2.5× / 0.8
Missiles · Kara Seanew	2	11	0	—	new / 0
Exercises · Mediterranean Sea - Eastern Basin	2	10.3	0	—	0.6× / 3.4
Incidents · Philippine Sea	2	9.1	1	27	0.8× / 2.6
Exercises · Baltic Sea	2	9	0	—	1.3× / 1.6
Exercises · North Atlantic Ocean	2	6.1	0	—	0.3× / 6.2
Missiles · Black Sea	2	5.5	0	—	3.3× / 0.6
Missiles · Norwegian Sea	2	5.4	0	—	3.3× / 0.6
Exercises · Adriatic Sea	2	4.3	0	—	3.3× / 0.6
Derelicts · Laccadive Sea	2	4.1	0	—	10× / 0.2
Nav aids · The Coastal Waters of Southeast Alaska and British Columbia	2	1.8	0	—	1.1× / 1.8
Incidents · Tasman Sea	2	0.6	1	0	0.9× / 2.2
Incidents · Timor Sea	2	0.2	0	—	3.3× / 0.6
Other · South Atlantic Ocean	1	119.4	2	208	1.0× / 1
Nav aids · South China Sealong running	1	111	4	1,020	new / 0
Cable ops · Arabian Sea	1	108	2	57	0.4× / 2.4
Nav aids · Inner Seas off the West Coast of Scotland	1	93	3	331	0.5× / 2
Structures · North Sealong running	1	79.6	3	1,020	new / 0
Surveys · Arabian Sealong running	1	79.4	2	513	new / 0
Volcanic · Philippine Sealong running	1	62.1	2	762	5.0× / 0.2
Cable ops · Barentsz Sea	1	62	2	70	5.0× / 0.2
Ordnance · North Sealong running	1	62	2	920	1.7× / 0.6
Nav aids · Mediterranean Sea - Western Basin	1	48	1	65	2.5× / 0.4
Cable ops · Eastern China Sea	1	37.6	2	33	5.0× / 0.2
Wrecks · North Atlantic Oceanlong running	1	34.7	1	966	5.0× / 0.2
Cable ops · Baltic Sea	1	31	1	51	new / 0
Restricted · Sea of Okhotsklong running	1	31	1	961	5.0× / 0.2
Cable ops · Timor Sea	1	24.6	1	24	new / 0
Volcanic · North Pacific Ocean	1	23.9	0	—	new / 0
Wrecks · Japan Sea	1	23.6	1	23	new / 0
Other · Sea of Azov	1	23.5	1	23	new / 0
Surveys · Mediterranean Sea - Eastern Basin	1	23	0	—	0.4× / 2.6
Other · Celtic Sea	1	21.5	1	61	new / 0
Wrecks · South China Sea	1	19.2	1	19	5.0× / 0.2
Incidents · Laccadive Sea	1	17.2	1	54	5.0× / 0.2
Incidents · Bay of Bengal	1	17	0	—	1.0× / 1
Surveys · Andaman or Burma Sea	1	16.4	1	16	new / 0
Exercises · South Atlantic Ocean	1	15.2	0	—	0.1× / 10.4
Cable ops · Caribbean Sea	1	14.7	1	14	5.0× / 0.2
Surveys · Persian Gulf	1	14.4	1	14	5.0× / 0.2
Spills · Bering Sea	1	14	0	—	5.0× / 0.2
Spills · North Atlantic Ocean	1	14	0	—	0.5× / 2
Spills · Philippine Sea	1	14	0	—	new / 0
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	14	1	14	1.7× / 0.6
Exercises · Caribbean Sea	1	12	1	11	2.5× / 0.4
Surveys · Sea of Azov	1	11.2	1	11	5.0× / 0.2
Cable ops · Sea of Okhotsk	1	10.6	1	10	new / 0
Incidents · Banda Sea	1	9.2	0	—	new / 0
Missiles · Laccadive Sea	1	7.9	0	—	1.7× / 0.6
Ordnance · English Channel	1	7.6	1	7	new / 0
Missiles · Sea of Okhotsk	1	7.3	0	—	new / 0
Cable ops · Irish Sea and St. George's Channel	1	6.7	0	—	1.3× / 0.8
Missiles · Bay of Bengal	1	6.6	1	6	5.0× / 0.2
Missiles · Indian Ocean	1	6.3	0	—	1.7× / 0.6
Piracy · Red Sea	1	6.1	0	—	1.3× / 0.8
Cable ops · North Pacific Ocean	1	5.5	1	5	new / 0
Missiles · Philippine Sea	1	5.2	0	—	5.0× / 0.2
Nav aids · Gulf of Alaska	1	4.5	0	—	1.0× / 1
Other · Arabian Sea	1	4.4	1	4	new / 0
Missiles · Arabian Sea	1	4	0	—	5.0× / 0.2
Incidents · Andaman or Burma Sea	1	3.9	0	—	2.5× / 0.4
Surveys · Gulf of Suez	1	3.7	1	3	1.7× / 0.6
Other · Persian Gulf	1	3.7	1	3	5.0× / 0.2
Nav aids · Mozambique Channel	1	3.5	1	3	new / 0
Nav aids · South Pacific Ocean	1	3.3	0	—	0.6× / 1.6
Derelicts · Indian Ocean	1	3.1	0	—	0.3× / 3.8
Quakes · Aegean Sea	1	3	0	—	new / 0
Quakes · Banda Sea	1	3	0	—	5.0× / 0.2
Quakes · Bay of Bengal	1	3	0	—	new / 0
Containers · Bay of Biscay	1	3	0	—	new / 0
Quakes · Bismarck Sea	1	3	0	—	1.7× / 0.6
Debris · Caribbean Sea	1	3	0	—	1.7× / 0.6
Quakes · Caribbean Sea	1	3	0	—	1.7× / 0.6
Derelicts · Coral Sea	1	3	0	—	2.5× / 0.4
Quakes · Coral Sea	1	3	0	—	0.5× / 2
Containers · English Channel	1	3	0	—	5.0× / 0.2
Derelicts · Gulf of Aden	1	3	0	—	new / 0
Quakes · Gulf of Alaska	1	3	0	—	1.3× / 0.8
Derelicts · Gulf of Mexico	1	3	0	—	1.3× / 0.8
Quakes · Gulf of Mexico	1	3	0	—	new / 0
Containers · North Pacific Ocean	1	3	0	—	5.0× / 0.2
Quakes · Solomon Sea	1	3	0	—	0.8× / 1.2
Derelicts · South China Sea	1	3	0	—	2.5× / 0.4
Quakes · Sulu Sea	1	3	0	—	new / 0
Derelicts · Tasman Sea	1	3	0	—	2.5× / 0.4
Derelicts · Timor Sea	1	3	0	—	5.0× / 0.2
Nav aids · Mediterranean Sea - Eastern Basin	1	2.8	0	—	5.0× / 0.2
Surveys · Tyrrhenian Sea	1	2.5	1	2	new / 0
Exercises · Coral Sea	1	2.4	0	—	1.3× / 0.8
Piracy · Singapore Strait	1	1.8	1	1	new / 0
Other · Bay of Biscay	1	1.5	0	—	new / 0
Derelicts · North Pacific Ocean	1	1.4	0	—	0.7× / 1.4
Incidents · Bismarck Sea	1	0.7	0	—	5.0× / 0.2
Other · Timor Sea	1	0.6	0	—	new / 0
Surveys · English Channel	1	0.5	0	—	5.0× / 0.2
Surveys · Aegean Sea	1	0.4	0	—	new / 0
Incidents · Java Sea	1	0.4	0	—	new / 0
Derelicts · Banda Sea	1	0.3	0	—	new / 0
Incidents · Aegean Sea	1	0.2	0	—	new / 0
Incidents · Davis Strait	1	0.1	0	—	1.0× / 1
Other · Arafura Sea	1	0	0	—	new / 0
Nav aids · Arabian Sealong running	0	181.6	5	1,086	0.0× / 0.4
Surveys · Arctic Oceanlong running	0	155	5	1,314	— / 0
Wrecks · Arabian Sealong running	0	124	4	408	0.0× / 0.2
Surveys · Beaufort Sealong running	0	124	4	1,389	— / 0
Nav aids · Caribbean Sealong running	0	121.2	3	370	0.0× / 0.4
Wrecks · Persian Gulflong running	0	93	3	537	0.0× / 0.2
Surveys · The Northwestern Passageslong running	0	93	3	663	— / 0
Other · North Pacific Oceanlong running	0	77.8	2	775	0.0× / 0.4
Cable ops · Bay of Bengal	0	62	2	88	0.0× / 3.2
Nav aids · Celtic Sealong running	0	62	2	583	0.0× / 1.2
Nav aids · Gulf of Californialong running	0	62	2	381	0.0× / 0.2
Exercises · Ionian Sea	0	62	2	149	— / 0
Nav aids · Kara Sealong running	0	62	2	997	— / 0
War risk · Mediterranean Sea - Eastern Basinlong running	0	62	2	1,102	0.0× / 1
Restricted · North Sealong running	0	62	2	1,013	0.0× / 0.2
Wrecks · North Sealong running	0	62	2	446	0.0× / 0.2
Nav aids · Persian Gulf	0	62	2	325	— / 0
Nav aids · Sea of Okhotsklong running	0	62	2	893	— / 0
Nav aids · Singapore Strait	0	62	2	306	— / 0
Nav aids · Southern Ocean	0	62	2	190	— / 0
Ordnance · Black Sea	0	47.4	1	337	0.0× / 0.2
Incidents · Gulf of Aden	0	32.8	0	—	0.0× / 0.2
Other · Caribbean Sea	0	31.6	1	162	— / 0
Cable ops · Gulf of Guinea	0	31.4	0	—	0.0× / 1.2
Missiles · Aegean Sea	0	31	1	149	0.0× / 0.6
Nav aids · Andaman or Burma Sea	0	31	1	53	0.0× / 0.2
Wrecks · Arctic Ocean	0	31	1	281	— / 0
Surveys · Baltic Sea	0	31	1	50	0.0× / 0.2
Wrecks · Barentsz Sea	0	31	1	38	— / 0
Nav aids · Bass Straitlong running	0	31	1	425	0.0× / 0.2
Nav aids · Bay of Bengal	0	31	1	85	0.0× / 0.6
Wrecks · Bay of Bengal	0	31	1	305	0.0× / 0.2
Surveys · Bering Sea	0	31	1	309	— / 0

Cite: seahazards.com Sea Ledger, 2014-05, 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.