Sea Ledger, June 2022

2022-06-01 to 2022-06-30 · archive

issued: 595
warning-days in force: 9,815
in force at month end: 338
sea × type cells: 214

baseline: same month, previous 5 years (2021-06, 2020-06, 2019-06, 2018-06, 2017-06)

By type

type	issued	warning-days	in force at end
Icebergs	94	96.2	4
Exercises	92	949.7	32
Incidents	91	1,156.2	39
Missiles	63	423.8	10
Nav aids	62	3,093.8	105
Surveys	56	1,736.1	62
Quakes	25	72.2	1
Derelicts	22	179.6	9
Spills	21	278	12
Towing	19	19.3	0
Other	18	298.6	8
Cable ops	15	263	12
Debris	8	51	1
Wrecks	6	873.2	30
Piracy	2	9	2
Restricted	1	13.6	1
Mines	0	62	2
Ordnance	0	30	1
War risk	0	30	1
Volcanic	0	180	6

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Icebergs · Labrador Sea	32	36.3	2	31	1.3× / 24.6
Icebergs · South Atlantic Ocean	31	30.1	1	30	1.3× / 24.2
Icebergs · Southern Ocean	31	29.8	1	30	1.3× / 23.8
Incidents · North Atlantic Oceansurge	26	460.2	12	139	2.4× / 10.8
Missiles · North Atlantic Oceansurge	22	101	3	27	2.9× / 7.6
Towing · North Pacific Oceannew	19	19.3	0	—	new / 0
Missiles · North Pacific Oceansurgelong running	15	101.2	2	380	3.6× / 4.2
Exercises · Bay of Bengalsurge	14	98.3	2	34	2.0× / 7
Exercises · North Pacific Ocean	12	182.9	7	65	0.5× / 25
Incidents · South China Sea	12	155.3	6	118	0.5× / 22.8
Exercises · South Pacific Ocean	12	52.4	3	34	1.7× / 7
Missiles · South Pacific Oceansurge	11	66.6	3	34	5.0× / 2.2
Incidents · North Pacific Ocean	10	88.2	3	34	0.6× / 17.8
Exercises · North Atlantic Ocean	10	64.5	2	50	1.3× / 8
Surveys · North Atlantic Ocean	9	564.1	22	184	1.0× / 8.8
Nav aids · North Atlantic Oceanlong running	9	246.5	8	441	1.6× / 5.8
Surveys · South Atlantic Ocean	9	74.1	1	30	0.5× / 18.2
Exercises · Philippine Sea	9	41.2	2	28	1.0× / 9
Nav aids · North Pacific Oceansurgelong running	8	317.4	12	454	2.2× / 3.6
Surveys · Persian Gulfsurgelong running	8	253	10	528	2.7× / 3
Spills · Gulf of Mexico	8	100	3	41	0.8× / 9.8
Missiles · Barentsz Sea	8	48.9	1	23	1.5× / 5.2
Quakes · South Pacific Ocean	8	24	0	—	0.7× / 12
Exercises · Arabian Sea	7	58.9	1	34	1.3× / 5.4
Incidents · Arabian Seasurge	7	33.9	4	43	2.5× / 2.8
Surveys · Sea of Okhotsk	6	154.4	5	37	1.4× / 4.4
Spills · North Pacific Oceansurge	6	56	5	42	5.0× / 1.2
Incidents · Indian Ocean	6	14.1	1	18	1.0× / 6.2
Nav aids · South Atlantic Ocean	5	637	22	204	0.7× / 7.4
Surveys · North Sea	5	98.9	4	76	0.9× / 5.4
Nav aids · Davis Straitsurge	5	27.5	1	26	4.2× / 1.2
Exercises · South Atlantic Ocean	5	26.6	2	36	0.8× / 6.4
Exercises · Andaman or Burma Seasurge	5	24.1	0	—	4.2× / 1.2
Derelicts · North Atlantic Ocean	5	22.6	3	12	1.4× / 3.6
Incidents · Coral Sea	5	3.4	0	—	1.1× / 4.6
Nav aids · South Pacific Oceanlong running	4	462.7	17	391	0.6× / 6.6
Nav aids · Irish Sea and St. George's Channelsurge	4	69.4	2	43	2.5× / 1.6
Nav aids · English Channelsurge	4	64.1	2	44	4.0× / 1
Incidents · Mediterranean Sea - Eastern Basin	4	42.5	3	20	0.2× / 16.6
Cable ops · North Atlantic Ocean	4	39.5	3	30	0.9× / 4.6
Surveys · Arabian Seasurge	4	36.5	1	37	5.0× / 0.8
Surveys · Indian Oceansurgelong running	3	100.5	4	499	3.8× / 0.8
Nav aids · North Sea	3	65.6	3	47	0.3× / 9.2
Exercises · Laccadive Seasurge	3	60.3	1	34	2.1× / 1.4
Incidents · South Atlantic Ocean	3	42.1	2	41	0.4× / 7.6
Incidents · South Pacific Ocean	3	41.1	2	47	0.5× / 5.6
Other · North Atlantic Ocean	3	37.7	1	194	1.9× / 1.6
Nav aids · Inner Seas off the West Coast of Scotland	3	34.3	1	47	1.5× / 2
Derelicts · Celtic Seanew	3	32.5	1	26	new / 0
Wrecks · South Pacific Oceansurge	3	31.7	1	65	5.0× / 0.6
Surveys · Caribbean Seasurge	3	30	1	35	7.5× / 0.4
Cable ops · South Atlantic Oceansurge	3	28.6	2	15	7.5× / 0.4
Exercises · Japan Sea	3	25.8	2	17	1.5× / 2
Other · North Pacific Ocean	3	15.2	1	29	1.0× / 3
Missiles · Philippine Seasurge	3	14.9	0	—	3.8× / 0.8
Exercises · Indian Ocean	3	11.2	0	—	1.0× / 3
Incidents · Celtic Seasurge	3	0.7	0	—	7.5× / 0.4
Wrecks · North Sea	2	66.3	3	201	1.3× / 1.6
Exercises · Barentsz Sea	2	47.3	1	61	0.6× / 3.2
Surveys · Bay of Bengal	2	44	2	65	2.5× / 0.8
Incidents · Caribbean Sea	2	37.2	1	45	0.7× / 2.8
Spills · North Atlantic Ocean	2	33	1	39	0.8× / 2.4
Nav aids · Gulf of Alaska	2	27	0	—	1.0× / 2
Exercises · Norwegian Sea	2	24.3	0	—	2.5× / 0.8
Cable ops · South China Sea	2	22.6	1	25	1.7× / 1.2
Derelicts · Gulf of Mexico	2	18.4	0	—	3.3× / 0.6
Spills · Bering Sea	2	17	2	13	5.0× / 0.4
Nav aids · Coral Sea	2	16.1	0	—	0.4× / 5.2
Derelicts · Caribbean Sea	2	14.6	1	19	2.5× / 0.8
Derelicts · Coral Sea	2	6	0	—	1.7× / 1.2
Quakes · Eastern China Sea	2	6	0	—	10× / 0.2
Debris · North Atlantic Ocean	2	6	0	—	5.0× / 0.4
Quakes · North Pacific Ocean	2	6	0	—	0.5× / 4
Quakes · Persian Gulfnew	2	6	0	—	new / 0
Quakes · Philippine Sea	2	6	0	—	1.7× / 1.2
Quakes · South Atlantic Ocean	2	6	0	—	1.3× / 1.6
Debris · South Pacific Ocean	2	6	0	—	2.5× / 0.8
Incidents · Arafura Sea	2	4	0	—	5.0× / 0.4
Exercises · Coral Sea	2	3.4	0	—	2.0× / 1
Other · Davis Strait	2	3.1	0	—	5.0× / 0.4
Nav aids · Great Australian Bight	2	1.5	0	—	1.7× / 1.2
Nav aids · Caribbean Sealong running	1	477.5	16	499	0.7× / 1.4
Other · Caribbean Sea	1	61	2	245	new / 0
Nav aids · Indian Ocean	1	56	2	147	0.5× / 2.2
Incidents · Tyrrhenian Sea	1	39	2	54	5.0× / 0.2
Nav aids · Persian Gulf	1	37.4	2	37	5.0× / 0.2
Other · South Atlantic Ocean	1	33.6	1	62	1.0× / 1
Exercises · Caribbean Sea	1	32.4	1	113	0.7× / 1.4
Cable ops · South Pacific Ocean	1	31.5	1	38	0.8× / 1.2
Nav aids · Celtic Sea	1	30.5	1	35	0.8× / 1.2
Surveys · Mediterranean Sea - Western Basin	1	29	1	35	1.0× / 1
Nav aids · Barentsz Sea	1	27.2	1	27	new / 0
Incidents · Java Sea	1	22.9	0	—	0.6× / 1.6
Incidents · Balearic (Iberian Sea)	1	17.6	1	17	new / 0
Other · Gulf of Mexico	1	17.5	0	—	1.7× / 0.6
Surveys · Timor Sea	1	17.5	0	—	2.5× / 0.4
Cable ops · Celtic Sea	1	16.5	0	—	1.7× / 0.6
Nav aids · Laccadive Sea	1	16.5	1	16	5.0× / 0.2
Exercises · Tasman Sea	1	14.8	1	14	5.0× / 0.2
Other · Baltic Sea	1	14.6	0	—	new / 0
Incidents · Philippine Sea	1	14.2	0	—	0.3× / 3.6
Spills · Caribbean Sea	1	14	0	—	new / 0
Spills · Gulf of Alaska	1	14	0	—	1.3× / 0.8
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	14	0	—	1.0× / 1
Restricted · Indian Ocean	1	13.6	1	13	new / 0
Derelicts · Bay of Bengal	1	13.1	1	13	1.3× / 0.8
Surveys · Mediterranean Sea - Eastern Basin	1	12.7	1	34	0.3× / 3.4
Surveys · Black Sea	1	11.6	0	—	0.4× / 2.4
Incidents · Laccadive Sea	1	10.7	1	34	0.7× / 1.4
Other · South Pacific Ocean	1	10.5	0	—	1.0× / 1
Incidents · Ionian Sea	1	10	1	10	1.7× / 0.6
Surveys · Philippine Sea	1	9.4	0	—	5.0× / 0.2
Missiles · Kara Sea	1	9.3	0	—	5.0× / 0.2
Derelicts · Laccadive Sea	1	8.1	1	8	0.6× / 1.6
Nav aids · Bristol Channel	1	7.8	0	—	2.5× / 0.4
Cable ops · Eastern China Sea	1	7.5	1	7	5.0× / 0.2
Wrecks · English Channel	1	7.3	1	7	1.7× / 0.6
Nav aids · Arafura Sea	1	6.9	0	—	5.0× / 0.2
Missiles · Norwegian Sea	1	6.7	0	—	5.0× / 0.2
Piracy · Gulf of Guinea	1	6.4	1	6	0.7× / 1.4
Cable ops · North Pacific Ocean	1	6.2	1	46	0.7× / 1.4
Nav aids · Tasman Sea	1	5.9	0	—	2.5× / 0.4
Surveys · Celtic Sea	1	5.7	0	—	1.3× / 0.8
Cable ops · English Channel	1	4.6	0	—	5.0× / 0.2
Derelicts · Indian Ocean	1	4.5	0	—	0.4× / 2.6
Incidents · Bismarck Sea	1	4.1	0	—	0.6× / 1.6
Nav aids · Bay of Bengal	1	4	0	—	1.0× / 1
Other · Bay of Bengal	1	4	0	—	new / 0
Derelicts · Arabian Sea	1	3	0	—	0.5× / 2
Quakes · Bering Sea	1	3	0	—	1.3× / 0.8
Quakes · Bismarck Sea	1	3	0	—	2.5× / 0.4
Debris · Caribbean Sea	1	3	0	—	1.7× / 0.6
Quakes · Flores Sea	1	3	0	—	new / 0
Debris · Indian Ocean	1	3	0	—	1.3× / 0.8
Derelicts · Ionian Sea	1	3	0	—	new / 0
Quakes · Makassar Strait	1	3	0	—	new / 0
Derelicts · Mediterranean Sea - Eastern Basin	1	3	0	—	5.0× / 0.2
Quakes · Molukka Sea	1	3	0	—	1.3× / 0.8
Other · North Sea	1	3	0	—	1.3× / 0.8
Other · Persian Gulf	1	3	0	—	5.0× / 0.2
Quakes · Solomon Sea	1	3	0	—	1.7× / 0.6
Debris · Tasman Sea	1	3	0	—	new / 0
Cable ops · Arabian Sea	1	2.8	1	41	new / 0
Other · English Channel	1	2.8	0	—	1.0× / 1
Surveys · Kara Sea	1	2.7	1	2	2.5× / 0.4
Piracy · North Atlantic Ocean	1	2.6	1	2	new / 0
Missiles · Laccadive Sea	1	1.8	0	—	1.3× / 0.8
Derelicts · South Atlantic Ocean	1	1.7	1	1	0.5× / 2
Exercises · Chukchi Sea	1	0.8	1	0	new / 0
Other · South China Sea	1	0.4	0	—	1.7× / 0.6
Nav aids · Strait of Gibraltar	1	0.4	0	—	new / 0
Quakes · South China Sea	1	0.2	1	0	new / 0
Missiles · Timor Sea	1	0.2	0	—	new / 0
Incidents · Timor Sea	1	0.2	0	—	1.7× / 0.6
Derelicts · Inner Seas off the West Coast of Scotland	1	0.1	0	—	new / 0
Debris · North Pacific Ocean	1	0	0	—	new / 0
Nav aids · Gulf of Mexicolong running	0	180	6	454	0.0× / 3.2
Volcanic · Philippine Sealong running	0	180	6	559	— / 0
Wrecks · South China Sealong running	0	120	4	1,211	0.0× / 1.4
Wrecks · Arabian Sea	0	107.9	3	342	0.0× / 0.8
Exercises · Aegean Sea	0	90	3	178	0.0× / 5.2
Wrecks · Bay of Bengal	0	90	3	219	0.0× / 0.4
Surveys · Norwegian Sea	0	90	3	41	0.0× / 2.6
Wrecks · Persian Gulflong running	0	90	3	484	0.0× / 0.4
Nav aids · Andaman or Burma Sealong running	0	60	2	542	0.0× / 1
Nav aids · Arabian Sea	0	60	2	246	0.0× / 2
Mines · Black Sea	0	60	2	126	— / 0
Wrecks · Caribbean Sea	0	60	2	250	0.0× / 0.2
Nav aids · Gulf of Californialong running	0	60	2	499	— / 0
Exercises · Ionian Sea	0	60	2	178	— / 0
Wrecks · Laccadive Sea	0	60	2	267	0.0× / 0.6
Wrecks · North Atlantic Oceanlong running	0	60	2	400	0.0× / 0.6
Cable ops · Persian Gulf	0	60	2	322	0.0× / 1
Wrecks · South Atlantic Ocean	0	60	2	54	0.0× / 1
Wrecks · The Northwestern Passages	0	60	2	301	— / 0
Derelicts · South Pacific Ocean	0	46.6	1	48	0.0× / 1.6
Incidents · Gulf of Mexico	0	43.6	0	—	0.0× / 2.2
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	43.6	1	393	0.0× / 0.4
Missiles · Aegean Sea	0	30	1	178	0.0× / 1
Other · Arabian Sea	0	30	1	294	0.0× / 1
Surveys · Barentsz Sea	0	30	1	41	0.0× / 0.8
Surveys · Bay of Biscay	0	30	1	141	0.0× / 0.4
Exercises · Black Sea	0	30	1	99	0.0× / 14
War risk · Black Sea	0	30	1	100	— / 0
Other · Coral Sea	0	30	1	71	0.0× / 0.4
Surveys · Gulf of Mexico	0	30	1	128	0.0× / 1.8
Wrecks · Gulf of Mexico	0	30	1	109	0.0× / 0.2
Surveys · Hudson Bay	0	30	1	316	— / 0
Debris · Inner Seas off the West Coast of Scotland	0	30	1	96	— / 0
Surveys · Laccadive Sea	0	30	1	138	— / 0
Ordnance · North Sea	0	30	1	147	0.0× / 4.4
Surveys · Red Sea	0	30	1	93	— / 0
Wrecks · Singapore Strait	0	30	1	207	— / 0
Spills · South Pacific Ocean	0	30	1	48	— / 0
Other · Southern Ocean	0	30	1	139	— / 0
Nav aids · The Coastal Waters of Southeast Alaska and British Columbia	0	30	1	106	0.0× / 2.2
Cable ops · Caribbean Sea	0	29	0	—	0.0× / 0.6
Missiles · Sea of Okhotsk	0	28.8	0	—	0.0× / 0.6
Nav aids · Bering Sea	0	21	0	—	0.0× / 0.4
Incidents · Bay of Biscay	0	16.6	0	—	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2022-06, 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.