Sea Ledger, June 2015

2015-06-01 to 2015-06-30 · archive

issued: 604
warning-days in force: 9,959
in force at month end: 324
sea × type cells: 254

baseline: same month, previous 5 years (2014-06, 2013-06, 2012-06, 2011-06, 2010-06)

By type

type	issued	warning-days	in force at end
Incidents	154	1,111.7	42
Exercises	120	1,061	30
Nav aids	60	2,515.6	81
Surveys	45	1,282.1	37
Cable ops	34	1,067.4	33
Derelicts	33	207.2	6
Missiles	31	197.4	6
Icebergs	31	35	3
Quakes	28	86.1	2
Other	24	612.4	22
Spills	14	206	5
Ordnance	6	68.1	5
Piracy	5	77.4	3
Debris	5	13.5	1
Containers	5	13	0
Wrecks	4	971.6	33
Restricted	3	229.7	8
Structures	1	61.8	2
Mines	1	0.3	1
War risk	0	60	2
Volcanic	0	81.3	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Exercises · North Pacific Oceansurge	31	89.3	3	35	2.8× / 11
Icebergs · Labrador Sea	29	31.7	2	30	1.8× / 16.4
Incidents · North Pacific Ocean	25	95.9	3	39	0.9× / 28.6
Surveys · North Atlantic Oceansurgelong running	22	211.5	7	392	5.8× / 3.8
Incidents · Mediterranean Sea - Eastern Basinsurge	21	122.9	2	33	5.8× / 3.6
Incidents · South China Seasurge	21	82.9	6	28	2.4× / 8.8
Exercises · Yellow Seasurge	19	156.5	4	33	2.1× / 9
Exercises · South Atlantic Oceansurge	17	114.7	1	33	3.0× / 5.6
Incidents · Indian Ocean	12	59.6	3	47	1.4× / 8.8
Incidents · North Atlantic Ocean	11	161.8	5	80	0.6× / 17.6
Quakes · South Pacific Ocean	11	33.3	1	31	1.0× / 11
Derelicts · North Atlantic Oceansurge	9	57.7	2	314	3.0× / 3
Incidents · South Pacific Ocean	9	29	2	23	1.0× / 8.8
Spills · Gulf of Mexicosurge	8	112	4	40	6.7× / 1.2
Nav aids · South Atlantic Ocean	7	568.6	18	180	0.8× / 8.2
Nav aids · North Sealong running	7	119.6	4	933	0.7× / 10
Missiles · North Pacific Ocean	7	43.3	0	—	0.9× / 7.6
Missiles · Barentsz Seasurge	7	33.4	1	21	3.2× / 2.2
Missiles · North Atlantic Ocean	7	26.3	0	—	1.3× / 5.4
Exercises · Bay of Bengal	6	84.5	3	37	1.4× / 4.4
Exercises · South China Sea	6	77.3	3	34	1.9× / 3.2
Quakes · North Pacific Ocean	6	19.8	0	—	0.9× / 6.6
Nav aids · Caribbean Seasurgelong running	5	268.5	11	624	13× / 0.4
Surveys · South Atlantic Oceansurge	5	207.5	5	335	2.1× / 2.4
Cable ops · Gulf of Mexicosurgelong running	5	142.8	4	515	4.2× / 1.2
Incidents · Caribbean Sea	5	89.5	3	42	1.7× / 3
Cable ops · North Atlantic Ocean	5	83.6	3	33	0.9× / 5.4
Exercises · Philippine Sea	5	66.8	1	34	0.8× / 6.4
Derelicts · Arabian Seasurge	5	59.9	2	123	2.3× / 2.2
Incidents · Gulf of Mexicosurge	5	54.2	4	37	2.5× / 2
Nav aids · Irish Sea and St. George's Channel	5	37.2	1	29	1.4× / 3.6
Incidents · South Atlantic Ocean	5	36.6	2	26	1.1× / 4.6
Nav aids · English Channel	5	30	0	—	1.9× / 2.6
Derelicts · North Pacific Ocean	5	13.8	0	—	1.5× / 3.4
Incidents · Philippine Sea	5	10.4	0	—	1.3× / 3.8
Cable ops · South China Sea	4	97.5	4	265	0.9× / 4.6
Cable ops · Mediterranean Sea - Eastern Basinsurge	4	89.7	2	67	5.0× / 0.8
Exercises · Arabian Sea	4	58.6	2	32	1.2× / 3.4
Incidents · Mediterranean Sea - Western Basinsurge	4	56.4	2	29	20× / 0.2
Spills · North Atlantic Oceansurge	4	45	1	28	4.0× / 1
Exercises · Black Sea	4	27.8	2	32	1.3× / 3.2
Exercises · Barentsz Seasurge	4	18.8	1	26	20× / 0.2
Quakes · Philippine Seasurge	4	13.5	0	—	2.0× / 2
Exercises · Mediterranean Sea - Eastern Basin	4	11.3	0	—	0.9× / 4.2
Exercises · Gulf of Mexicosurge	4	9.8	0	—	3.3× / 1.2
Surveys · Irish Sea and St. George's Channelsurge	4	6.7	0	—	20× / 0.2
Incidents · Coral Sea	4	4.5	0	—	0.7× / 5.4
Nav aids · North Atlantic Oceanlong running	3	164.5	5	817	0.5× / 6
Other · North Sealong running	3	82.9	2	641	1.9× / 1.6
Incidents · Bay of Biscaynew	3	70.5	2	29	new / 0
Derelicts · South Pacific Oceanlong running	3	39	1	1,098	1.3× / 2.4
Incidents · Mozambique Channel	3	29.7	1	26	1.7× / 1.8
Incidents · Java Seasurge	3	15.1	0	—	15× / 0.2
Piracy · Singapore Straitsurge	3	14.5	2	21	7.5× / 0.4
Ordnance · Sea of Azovsurge	3	14.4	3	6	15× / 0.2
Missiles · White Seanew	3	13.5	1	10	new / 0
Other · Mediterranean Sea - Eastern Basinsurge	3	12.6	0	—	5.0× / 0.6
Derelicts · Indian Ocean	3	9.3	0	—	0.8× / 3.8
Containers · Arabian Seasurge	3	9	0	—	2.1× / 1.4
Nav aids · Timor Seanew	3	1.2	0	—	new / 0
Exercises · Aegean Sea	2	200.2	6	179	2.5× / 0.8
Nav aids · Gulf of Mexicolong running	2	155.6	5	500	0.6× / 3.2
Restricted · North Sealong running	2	140.2	5	1,195	3.3× / 0.6
Nav aids · Arabian Sealong running	2	103.4	4	440	2.0× / 1
Nav aids · Coral Sealong running	2	100.3	3	438	0.6× / 3.6
Cable ops · Norwegian Sea	2	89.9	4	30	0.9× / 2.2
Nav aids · Bass Straitlong running	2	64.7	2	820	3.3× / 0.6
Other · Persian Gulf	2	61.6	2	81	10× / 0.2
Cable ops · Sea of Okhotsk	2	57	2	33	3.3× / 0.6
Nav aids · Bay of Bengallong running	2	43.9	1	480	5.0× / 0.4
Other · English Channel	2	34.8	1	63	5.0× / 0.4
Nav aids · Davis Strait	2	32.5	2	16	10× / 0.2
Exercises · Laccadive Sea	2	32.1	1	64	0.9× / 2.2
Missiles · Black Sea	2	31.4	1	32	2.5× / 0.8
Incidents · Davis Strait	2	26	1	25	2.5× / 0.8
Nav aids · Andaman or Burma Seanew	2	24.2	0	—	new / 0
Surveys · Gulf of St. Lawrencenew	2	21	0	—	new / 0
Other · Timor Seanew	2	20.5	1	19	new / 0
Other · Davis Straitnew	2	16.4	0	—	new / 0
Incidents · Ionian Sea	2	13.6	0	—	2.5× / 0.8
Surveys · Arabian Seanew	2	11.8	1	39	new / 0
Derelicts · Malacca Straitnew	2	10.5	1	20	new / 0
Other · Tasman Seanew	2	9.8	1	18	new / 0
Surveys · North Sea	2	9.3	1	9	3.3× / 0.6
Piracy · South China Sea	2	9.3	0	—	1.7× / 1.2
Incidents · Makassar Straitnew	2	8.5	0	—	new / 0
Exercises · South Pacific Ocean	2	8.1	0	—	0.6× / 3.4
Exercises · Baltic Sea	2	7.6	0	—	0.8× / 2.6
Missiles · Indian Ocean	2	7.2	0	—	1.0× / 2
Derelicts · Gulf of Mexico	2	6	0	—	1.7× / 1.2
Quakes · South Atlantic Ocean	2	6	0	—	1.0× / 2
Cable ops · Celtic Sea	2	5.4	2	5	1.4× / 1.4
Exercises · Caribbean Seanew	2	4.3	0	—	new / 0
Surveys · Inner Seas off the West Coast of Scotlandnew	2	2.3	0	—	new / 0
Nav aids · Beaufort Seanew	2	1.4	0	—	new / 0
Wrecks · Arabian Sealong running	1	225.5	8	803	1.3× / 0.8
Cable ops · North Sea	1	138.3	3	104	0.5× / 2.2
Nav aids · Indian Oceanlong running	1	94	3	496	0.6× / 1.6
Other · South China Sealong running	1	87.4	3	678	2.5× / 0.4
Cable ops · Barentsz Sea	1	79	2	68	0.6× / 1.6
Nav aids · Sea of Okhotsklong running	1	72	2	1,288	1.3× / 0.8
Wrecks · South China Sealong running	1	61.3	2	414	new / 0
Other · Arabian Sea	1	40.2	2	130	new / 0
Other · Caribbean Sea	1	38.3	2	161	5.0× / 0.2
Wrecks · Bay of Bengal	1	35.4	2	322	new / 0
Other · North Atlantic Oceanlong running	1	35.4	2	596	2.5× / 0.4
Nav aids · Inner Seas off the West Coast of Scotland	1	32.3	1	66	0.6× / 1.6
Nav aids · Eastern China Sealong running	1	31.7	2	1,232	new / 0
Other · South Atlantic Oceanlong running	1	31.1	1	603	1.7× / 0.6
Nav aids · Great Australian Bight	1	30.2	1	118	0.6× / 1.6
Cable ops · Arabian Sea	1	30	0	—	1.7× / 0.6
Nav aids · Rio de La Plata	1	30	1	39	new / 0
Restricted · Norwegian Sea	1	29.5	1	29	new / 0
Surveys · South China Sea	1	27.2	1	73	1.3× / 0.8
Surveys · English Channel	1	26.1	1	26	1.7× / 0.6
Cable ops · Japan Sea	1	24.6	1	53	new / 0
Incidents · Celtic Sea	1	24.5	1	77	2.5× / 0.4
Cable ops · South Atlantic Ocean	1	20.1	1	57	0.0× / 24.2
Spills · Gulf of Alaska	1	19	0	—	1.7× / 0.6
Cable ops · Aegean Sea	1	16.6	1	16	5.0× / 0.2
Surveys · Mediterranean Sea - Eastern Basin	1	15.6	0	—	1.0× / 1
Spills · Bering Sea	1	14	0	—	5.0× / 0.2
Ordnance · Philippine Sea	1	14	0	—	0.8× / 1.2
Exercises · Persian Gulf	1	13.6	0	—	new / 0
Wrecks · Irish Sea and St. George's Channel	1	11.3	1	11	2.5× / 0.4
Incidents · Molukka Sea	1	9.8	1	9	new / 0
Other · Gulf of Suez	1	8.5	1	8	new / 0
Ordnance · South China Sea	1	8.3	1	8	new / 0
Incidents · North Sea	1	8	1	8	new / 0
Incidents · Malacca Strait	1	7.4	0	—	new / 0
Cable ops · Laccadive Sea	1	6.6	0	—	2.5× / 0.4
Exercises · North Atlantic Ocean	1	6.5	0	—	0.4× / 2.6
Incidents · Arabian Sea	1	5.9	0	—	0.8× / 1.2
Missiles · Bering Sea	1	5.6	1	5	new / 0
Surveys · Aegean Sea	1	5.5	0	—	new / 0
Incidents · Bay of Bengal	1	5.5	0	—	1.0× / 1
Cable ops · Mediterranean Sea - Western Basin	1	5.5	0	—	2.5× / 0.4
Missiles · Laccadive Sea	1	5.1	0	—	0.8× / 1.2
Exercises · Tasman Sea	1	4.5	1	4	new / 0
Surveys · The Coastal Waters of Southeast Alaska and British Columbia	1	4.3	0	—	new / 0
Exercises · Alboran Sea	1	4.2	0	—	5.0× / 0.2
Exercises · Celtic Sea	1	3.4	0	—	5.0× / 0.2
Quakes · Indian Ocean	1	3.4	0	—	0.4× / 2.6
Incidents · Ceram Sea	1	3.3	0	—	new / 0
Cable ops · Indian Ocean	1	3.1	0	—	5.0× / 0.2
Debris · Barentsz Sea	1	3	0	—	new / 0
Incidents · Gulf of Aden	1	3	0	—	new / 0
Quakes · Gulf of Aqaba	1	3	0	—	new / 0
Debris · Indian Ocean	1	3	0	—	1.7× / 0.6
Other · Laccadive Sea	1	3	0	—	new / 0
Derelicts · Mediterranean Sea - Eastern Basin	1	3	0	—	2.5× / 0.4
Debris · North Pacific Ocean	1	3	0	—	1.3× / 0.8
Containers · South Atlantic Ocean	1	3	0	—	new / 0
Quakes · South China Sea	1	3	0	—	5.0× / 0.2
Debris · South Pacific Ocean	1	3	0	—	5.0× / 0.2
Derelicts · Timor Sea	1	3	0	—	new / 0
Quakes · Timor Sea	1	3	0	—	new / 0
Nav aids · Tasman Sea	1	2.7	0	—	1.3× / 0.8
Nav aids · Barentsz Sea	1	2.2	0	—	new / 0
Icebergs · Indian Ocean	1	2.2	1	2	new / 0
Other · Gulf of Mexico	1	2.1	0	—	2.5× / 0.4
Structures · Mediterranean Sea - Eastern Basin	1	1.8	0	—	5.0× / 0.2
Missiles · Sea of Okhotsk	1	1.6	1	1	2.5× / 0.4
Debris · North Atlantic Ocean	1	1.5	1	1	1.3× / 0.8
Ordnance · Celtic Sea	1	1.4	0	—	new / 0
Incidents · Gulf of Thailand	1	1.4	1	1	1.7× / 0.6
Surveys · North Pacific Ocean	1	1.2	0	—	2.5× / 0.4
Exercises · Mediterranean Sea - Western Basin	1	1.1	0	—	5.0× / 0.2
Icebergs · North Atlantic Ocean	1	1.1	0	—	0.4× / 2.6
Containers · Timor Sea	1	1	0	—	new / 0
Derelicts · Banda Sea	1	0.8	0	—	new / 0
Cable ops · Bristol Channel	1	0.8	0	—	5.0× / 0.2
Quakes · Solomon Sea	1	0.8	1	0	0.6× / 1.6
Nav aids · Mediterranean Sea - Western Basin	1	0.7	0	—	5.0× / 0.2
Derelicts · Philippine Sea	1	0.6	0	—	5.0× / 0.2
Mines · Norwegian Sea	1	0.3	1	0	new / 0
Incidents · Baffin Bay	1	0.2	0	—	new / 0
Incidents · Arafura Sea	1	0.1	0	—	new / 0
Incidents · Tasman Sea	1	0	0	—	0.6× / 1.6
Surveys · Arctic Oceanlong running	0	180	6	1,709	— / 0
Surveys · Beaufort Sealong running	0	150	5	1,784	— / 0
Wrecks · Solomon Sea	0	90	3	112	— / 0
Nav aids · South China Sealong running	0	90	3	1,415	— / 0
Surveys · Caribbean Sea	0	80	2	140	0.0× / 0.4
Wrecks · Persian Gulf	0	79.9	2	121	0.0× / 0.4
Surveys · Indian Ocean	0	76.1	1	171	— / 0
Nav aids · Kara Sealong running	0	75.6	2	1,392	— / 0
Cable ops · Eastern China Sea	0	60	2	90	0.0× / 0.4
Exercises · Ionian Sea	0	60	2	175	— / 0
Nav aids · Mediterranean Sea - Eastern Basin	0	60	2	179	0.0× / 0.2
War risk · Mediterranean Sea - Eastern Basinlong running	0	60	2	1,497	— / 0
Wrecks · North Atlantic Ocean	0	60	2	314	— / 0
Nav aids · North Pacific Ocean	0	60	2	354	0.0× / 3.8
Other · North Pacific Oceanlong running	0	60	2	1,170	0.0× / 0.6
Nav aids · Mozambique Channel	0	54	1	49	— / 0
Piracy · Persian Gulf	0	53.6	1	60	— / 0
Volcanic · Philippine Sealong running	0	51.3	1	1,157	0.0× / 0.4
Incidents · Laccadive Sea	0	38.5	1	43	0.0× / 0.4
Wrecks · North Sealong running	0	35.4	1	841	0.0× / 0.2
Nav aids · Persian Gulflong running	0	30.5	1	720	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2015-06, 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.