Sea Ledger, February 2019

2019-02-01 to 2019-02-28 · archive

issued: 588
warning-days in force: 10,125
in force at month end: 389
sea × type cells: 215

baseline: same month, previous 5 years (2018-02, 2017-02, 2016-02, 2015-02, 2014-02)

By type

type	issued	warning-days	in force at end
Exercises	113	1,158.6	50
Incidents	94	935.5	32
Icebergs	81	96	2
Nav aids	72	2,158	79
Surveys	66	1,974.6	78
Derelicts	37	193.2	7
Cable ops	24	222.3	11
Missiles	23	242.2	10
Quakes	20	65.6	0
Wrecks	17	2,303	86
Other	14	343.8	15
Spills	14	136	8
Piracy	4	16.6	2
Debris	4	11	0
Ordnance	2	93.5	3
Containers	2	6	0
Restricted	1	85.5	3
Structures	0	84	3

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Icebergs · Southern Oceansurge	37	36.8	0	—	3.3× / 11.2
Incidents · South China Sea	29	297.3	12	45	1.3× / 22.4
Icebergs · Labrador Sea	28	32.4	2	29	1.1× / 26.6
Surveys · South Atlantic Ocean	26	267.1	11	331	2.0× / 13.2
Nav aids · North Sea	18	278	12	62	1.3× / 14
Exercises · Mediterranean Sea - Eastern Basinsurge	18	151.6	4	119	2.7× / 6.6
Nav aids · South Atlantic Oceansurge	16	565.6	20	189	2.3× / 7
Exercises · North Pacific Ocean	16	134.7	7	56	0.7× / 21.8
Derelicts · North Atlantic Oceansurge	16	64.7	2	109	2.1× / 7.6
Exercises · South Atlantic Oceansurge	13	50	4	32	2.6× / 5
Icebergs · South Atlantic Ocean	12	14.8	0	—	1.5× / 7.8
Exercises · Aegean Seasurge	11	197.6	8	62	3.1× / 3.6
Incidents · North Pacific Ocean	10	115.1	4	45	0.4× / 23.4
Exercises · Philippine Seasurge	10	40.9	3	32	2.9× / 3.4
Exercises · Bay of Bengal	9	75.5	1	49	1.0× / 9
Exercises · Black Sea	8	73.8	5	31	0.8× / 10
Surveys · Arabian Seasurge	7	157.5	4	104	2.2× / 3.2
Surveys · Bay of Bengalsurge	7	111.2	5	42	4.4× / 1.6
Cable ops · Mediterranean Sea - Western Basinsurge	7	32.2	0	—	18× / 0.4
Missiles · North Atlantic Ocean	7	27.8	2	28	1.5× / 4.8
Exercises · Arabian Sea	6	56.6	5	34	1.0× / 6
Incidents · South Pacific Ocean	6	36	0	—	1.2× / 5
Quakes · South Pacific Ocean	6	23.6	0	—	0.9× / 6.8
Quakes · Indian Oceansurge	6	18	0	—	5.0× / 1.2
Nav aids · North Atlantic Ocean	5	237.3	9	112	1.2× / 4.2
Nav aids · Inner Seas off the West Coast of Scotlandsurge	5	72.9	2	71	2.1× / 2.4
Incidents · Coral Sea	5	28.7	1	40	0.9× / 5.6
Incidents · Indian Ocean	5	13.5	1	41	1.1× / 4.6
Wrecks · South China Seasurge	4	282.8	12	182	10× / 0.4
Surveys · North Atlantic Oceanlong running	4	219.5	7	469	1.2× / 3.4
Surveys · Persian Gulfsurge	4	183.2	8	155	20× / 0.2
Surveys · Andaman or Burma Seanew	4	88.6	5	38	new / 0
Exercises · Japan Seasurge	4	62.3	3	34	20× / 0.2
Missiles · North Pacific Ocean	4	52.9	1	349	1.1× / 3.6
Incidents · Philippine Sea	4	41.5	0	—	0.5× / 8
Incidents · South Atlantic Ocean	4	31.1	3	22	0.6× / 7.2
Spills · The Coastal Waters of Southeast Alaska and British Columbiasurge	4	31	2	27	2.9× / 1.4
Nav aids · Tasman Sea	4	29.1	1	41	1.5× / 2.6
Piracy · Gulf of Guinea	4	16.6	2	34	1.1× / 3.6
Derelicts · Indian Oceansurge	4	12	0	—	2.9× / 1.4
Incidents · North Atlantic Ocean	4	11.2	1	41	0.3× / 16
Derelicts · Bay of Bengalsurge	4	9.8	0	—	5.0× / 0.8
Missiles · Black Sea	3	95.1	3	30	0.9× / 3.2
Incidents · Arabian Sea	3	91.5	2	47	0.7× / 4.2
Exercises · South China Sea	3	86.7	3	32	1.5× / 2
Exercises · Ionian Seasurge	3	68.5	3	62	7.5× / 0.4
Nav aids · North Pacific Ocean	3	64.1	3	229	1.3× / 2.4
Nav aids · Gulf of Mexico	3	57.4	2	122	1.3× / 2.4
Incidents · Laccadive Sea	3	43.3	2	39	1.3× / 2.4
Spills · Gulf of Mexico	3	34	2	26	0.7× / 4.6
Nav aids · English Channel	3	31.2	1	62	1.3× / 2.4
Incidents · Java Seasurge	3	24.7	1	27	15× / 0.2
Spills · Bering Seasurge	3	22	3	14	5.0× / 0.6
Exercises · Yellow Sea	3	16.9	0	—	0.3× / 9.6
Cable ops · Arabian Sea	3	16.4	1	20	1.5× / 2
Exercises · South Pacific Ocean	3	8	0	—	0.9× / 3.4
Other · North Atlantic Oceansurge	3	3.9	2	8	3.0× / 1
Nav aids · Gulf of Alaskasurge	3	2.5	0	—	3.8× / 0.8
Wrecks · Caribbean Sealong running	2	647	24	773	1.3× / 1.6
Nav aids · South Pacific Ocean	2	147.3	5	115	1.4× / 1.4
Wrecks · Arabian Sea	2	130.9	4	75	1.3× / 1.6
Wrecks · North Sea	2	110	3	65	1.7× / 1.2
Ordnance · North Sea	2	87.8	3	78	1.4× / 1.4
Other · South China Sea	2	68	2	339	10× / 0.2
Nav aids · Indian Ocean	2	55.8	2	36	1.4× / 1.4
Incidents · Gulf of Thailand	2	55.7	1	30	3.3× / 0.6
Surveys · Indian Ocean	2	40.7	2	55	2.5× / 0.8
Spills · North Pacific Ocean	2	33	0	—	1.7× / 1.2
Derelicts · Coral Sea	2	32.6	2	49	5.0× / 0.4
Surveys · Bass Straitnew	2	28.5	2	24	new / 0
Cable ops · North Sea	2	28	1	55	1.4× / 1.4
Incidents · Mediterranean Sea - Eastern Basin	2	19.8	1	41	0.1× / 13.8
Incidents · Caribbean Sea	2	18.9	0	—	0.4× / 4.8
Other · South Atlantic Ocean	2	15.6	0	—	3.3× / 0.6
Incidents · Eastern China Sea	2	15.1	2	44	2.0× / 1
Surveys · Gulf of Mexico	2	13.9	1	13	1.3× / 1.6
Exercises · Barentsz Sea	2	12	0	—	10× / 0.2
Incidents · Bismarck Sea	2	10.4	0	—	0.7× / 3
Cable ops · North Atlantic Ocean	2	10.1	2	5	1.4× / 1.4
Other · Indian Ocean	2	10	1	9	5.0× / 0.4
Cable ops · Mozambique Channelnew	2	9.4	1	9	new / 0
Missiles · South Pacific Ocean	2	8.6	1	12	1.7× / 1.2
Missiles · Labrador Seanew	2	7.6	1	7	new / 0
Icebergs · Indian Ocean	2	6	0	—	3.3× / 0.6
Derelicts · Mediterranean Sea - Eastern Basin	2	6	0	—	10× / 0.2
Quakes · Molukka Sea	2	6	0	—	10× / 0.2
Quakes · North Atlantic Ocean	2	6	0	—	3.3× / 0.6
Quakes · North Pacific Ocean	2	6	0	—	0.4× / 4.6
Nav aids · Caribbean Sealong running	1	247.4	9	387	0.4× / 2.4
Wrecks · Bay of Bengal	1	61	2	191	new / 0
Nav aids · Mediterranean Sea - Western Basin	1	41.9	2	34	0.6× / 1.6
Cable ops · South Pacific Ocean	1	41.7	2	28	0.8× / 1.2
Nav aids · Arabian Sea	1	31	1	51	2.5× / 0.4
Restricted · South Atlantic Ocean	1	29.5	1	58	5.0× / 0.2
Nav aids · Great Australian Bight	1	28.7	1	69	1.0× / 1
Exercises · Laccadive Sea	1	28.1	1	30	0.5× / 2.2
Derelicts · South Pacific Ocean	1	28.1	2	59	0.4× / 2.8
Nav aids · Kara Sea	1	28	1	84	5.0× / 0.2
Surveys · Malacca Strait	1	28	1	35	new / 0
Wrecks · Philippine Sea	1	24.1	1	24	new / 0
Wrecks · English Channel	1	23.4	1	23	2.5× / 0.4
Wrecks · Kara Sea	1	20.6	1	20	new / 0
Other · English Channel	1	20	1	20	1.3× / 0.8
Incidents · Bay of Bengal	1	18.4	0	—	5.0× / 0.2
Other · Celtic Sea	1	18.4	1	18	5.0× / 0.2
Surveys · Red Sea	1	17.4	1	17	new / 0
Incidents · Aegean Sea	1	16.2	0	—	new / 0
Derelicts · Caribbean Sea	1	15.6	0	—	0.6× / 1.8
Surveys · South China Sea	1	14.5	1	14	5.0× / 0.2
Surveys · Ionian Sea	1	14.2	0	—	new / 0
Spills · North Atlantic Ocean	1	14	0	—	0.3× / 3
Nav aids · Celtic Sea	1	12.9	0	—	0.6× / 1.8
Wrecks · Singapore Strait	1	10.8	1	10	new / 0
Surveys · Bay of Biscay	1	10.3	1	10	new / 0
Surveys · Philippine Sea	1	10.1	1	56	new / 0
Incidents · Southern Ocean	1	9.6	1	9	2.5× / 0.4
Cable ops · Banda Sea	1	9	0	—	new / 0
Wrecks · Inner Seas off the West Coast of Scotland	1	8.3	1	8	new / 0
Missiles · Indian Ocean	1	7.6	1	7	1.7× / 0.6
Cable ops · South China Sea	1	5.6	0	—	0.6× / 1.8
Missiles · Barentsz Sea	1	5.3	0	—	0.5× / 2.2
Exercises · Adriatic Sea	1	5.2	0	—	5.0× / 0.2
Derelicts · Laccadive Sea	1	4.8	0	—	1.7× / 0.6
Incidents · Solomon Sea	1	4.7	0	—	1.3× / 0.8
Derelicts · Java Sea	1	4.6	1	4	new / 0
Exercises · Baltic Sea	1	4.1	0	—	0.5× / 2
Missiles · Laccadive Sea	1	3.9	0	—	1.0× / 1
Cable ops · Ligurian Sea	1	3.9	0	—	new / 0
Cable ops · North Pacific Ocean	1	3.9	0	—	2.5× / 0.4
Cable ops · Tyrrhenian Sea	1	3.5	0	—	new / 0
Debris · North Pacific Ocean	1	3.4	0	—	new / 0
Debris · Arafura Sea	1	3	0	—	5.0× / 0.2
Debris · Coral Sea	1	3	0	—	1.3× / 0.8
Other · Japan Sea	1	3	0	—	new / 0
Icebergs · Kara Sea	1	3	0	—	new / 0
Derelicts · Mediterranean Sea - Western Basin	1	3	0	—	2.5× / 0.4
Containers · North Atlantic Ocean	1	3	0	—	2.5× / 0.4
Icebergs · North Atlantic Ocean	1	3	0	—	0.5× / 2
Derelicts · Persian Gulf	1	3	0	—	new / 0
Quakes · Philippine Sea	1	3	0	—	0.6× / 1.8
Derelicts · South Atlantic Ocean	1	3	0	—	0.6× / 1.6
Quakes · South China Sea	1	3	0	—	2.5× / 0.4
Other · South Pacific Ocean	1	3	0	—	2.5× / 0.4
Derelicts · Tasman Sea	1	3	0	—	0.8× / 1.2
Incidents · Tasman Sea	1	3	0	—	1.7× / 0.6
Derelicts · Timor Sea	1	3	0	—	new / 0
Containers · Tyrrhenian Sea	1	3	0	—	new / 0
Missiles · Arctic Ocean	1	2.7	0	—	5.0× / 0.2
Missiles · South China Sea	1	2.7	0	—	5.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	1	2.1	1	2	0.8× / 1.2
Exercises · Mediterranean Sea - Western Basin	1	2.1	0	—	new / 0
Spills · Gulf of Alaska	1	2	1	2	1.0× / 1
Nav aids · Timor Sea	1	2	0	—	5.0× / 0.2
Cable ops · Adriatic Sea	1	1.3	1	1	new / 0
Surveys · Aegean Sea	1	1.3	1	1	1.0× / 1
Cable ops · Mediterranean Sea - Eastern Basin	1	1.3	1	1	0.4× / 2.8
Debris · Baltic Sea	1	0.9	0	—	new / 0
Wrecks · Laccadive Sea	1	0.6	1	0	5.0× / 0.2
Surveys · English Channel	1	0.2	0	—	new / 0
Incidents · Great Australian Bight	1	0.1	0	—	1.7× / 0.6
Incidents · Japan Sea	1	0.1	0	—	1.7× / 0.6
Nav aids · Arafura Sea	1	0	0	—	5.0× / 0.2
Incidents · Ceram Sea	1	0	0	—	5.0× / 0.2
Wrecks · North Atlantic Oceanlong running	0	252	9	759	— / 0
Surveys · Arctic Oceanlong running	0	168	6	1,682	— / 0
Surveys · The Northwestern Passageslong running	0	168	6	573	— / 0
Wrecks · North Pacific Oceanlong running	0	140	5	622	— / 0
Other · Caribbean Sealong running	0	112	4	769	0.0× / 1
Wrecks · Gulf of Mexicolong running	0	112	4	714	— / 0
Wrecks · Hudson Strait	0	112	4	145	— / 0
Surveys · Beaufort Sealong running	0	84	3	2,343	— / 0
Surveys · Bering Sealong running	0	84	3	597	— / 0
Wrecks · East Siberian Sea	0	84	3	237	— / 0
Surveys · Mediterranean Sea - Eastern Basin	0	62	2	69	0.0× / 2
Nav aids · Bass Strait	0	56	2	103	0.0× / 2.4
Nav aids · Coral Sea	0	56	2	84	0.0× / 2
Wrecks · Mediterranean Sea - Western Basin	0	56	2	86	0.0× / 0.2
Exercises · North Atlantic Ocean	0	56	2	50	0.0× / 7.6
Wrecks · Persian Gulf	0	56	2	70	0.0× / 0.2
Surveys · Sea of Okhotsk	0	56	2	64	— / 0
Wrecks · The Northwestern Passages	0	56	2	175	— / 0
Other · North Sea	0	31.8	1	55	0.0× / 1.2
Surveys · Black Sea	0	29	1	70	0.0× / 0.8
Missiles · Aegean Sea	0	28	1	62	— / 0
Exercises · Alboran Sea	0	28	1	29	— / 0
Nav aids · Andaman or Burma Sea	0	28	1	90	0.0× / 0.2
Other · Arabian Sea	0	28	1	32	0.0× / 0.4
Restricted · Caribbean Sealong running	0	28	1	632	— / 0
Structures · Caribbean Sea	0	28	1	35	— / 0
Surveys · Caribbean Sealong running	0	28	1	777	0.0× / 0.2
Wrecks · Gulf of California	0	28	1	135	— / 0
Surveys · Gulf of Guinea	0	28	1	45	0.0× / 0.6
Other · Gulf of Thailand	0	28	1	351	— / 0
Cable ops · Indian Ocean	0	28	1	40	0.0× / 0.8
Wrecks · Indian Ocean	0	28	1	315	0.0× / 0.2
Nav aids · Laccadive Sea	0	28	1	84	0.0× / 0.8
Restricted · North Sea	0	28	1	70	0.0× / 0.2
Cable ops · Sea of Okhotsk	0	28	1	153	— / 0
Wrecks · Solomon Sea	0	28	1	200	— / 0
Structures · South Atlantic Ocean	0	28	1	47	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2019-02, 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.