Sea Ledger, March 2009

2009-03-01 to 2009-03-31 · archive

issued: 364
warning-days in force: 8,471
in force at month end: 254
sea × type cells: 187

baseline: same month, previous 5 years (2008-03, 2007-03, 2006-03, 2005-03, 2004-03)

By type

type	issued	warning-days	in force at end
Exercises	92	767.2	20
Nav aids	63	1,936.7	55
Cable ops	54	1,158.7	38
Incidents	38	658.9	21
Quakes	30	89.1	4
Icebergs	16	95	0
Other	15	507	16
Spills	14	208	6
Derelicts	8	48.1	0
Surveys	8	2,124.4	70
Ordnance	7	75	2
Missiles	6	62	2
Containers	6	40	0
Volcanic	2	127.5	4
Piracy	2	35.5	1
Wrecks	2	469.9	13
Debris	1	37.4	1
Structures	0	31	1

By sea and type · 187 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	33	300.9	12	143	1.6× / 20.8
Exercises · North Atlantic Oceansurge	15	90.6	4	61	2.2× / 6.8
Exercises · Bay of Bengalsurge	13	76.6	2	31	2.0× / 6.4
Exercises · South Atlantic Oceansurge	13	64.3	0	—	4.6× / 2.8
Quakes · South Pacific Ocean	11	33	0	—	1.1× / 9.8
Exercises · North Pacific Ocean	9	77.2	3	35	1.2× / 7.4
Exercises · Yellow Seasurge	9	57.3	0	—	3.2× / 2.8
Spills · Gulf of Mexico	8	110	2	45	1.9× / 4.2
Nav aids · Inner Seas off the West Coast of Scotlandsurge	7	66.5	2	109	2.2× / 3.2
Incidents · South Atlantic Ocean	7	59.8	1	37	1.5× / 4.6
Exercises · Laccadive Sea	6	63.4	2	33	0.8× / 7.6
Missiles · North Pacific Ocean	6	62	2	37	1.2× / 5
Exercises · Japan Seasurge	6	40.9	0	—	2.1× / 2.8
Icebergs · Southern Oceansurge	6	38.5	0	—	3.3× / 1.8
Icebergs · North Atlantic Oceansurge	6	25.4	0	—	3.3× / 1.8
Incidents · Coral Sea	6	23.4	1	22	1.7× / 3.6
Nav aids · South Atlantic Oceansurgelong running	5	296.1	8	497	2.5× / 2
Nav aids · North Sea	5	195.2	6	360	1.1× / 4.4
Nav aids · Coral Seasurgelong running	5	115.1	4	392	2.3× / 2.2
Incidents · Indian Ocean	5	79.1	4	43	1.1× / 4.4
Nav aids · The Coastal Waters of Southeast Alaska and British Columbiasurge	5	11.1	1	24	2.8× / 1.8
Incidents · North Atlantic Ocean	4	132.2	4	66	1.5× / 2.6
Cable ops · Arabian Seasurge	4	99.7	3	60	2.0× / 2
Incidents · North Pacific Ocean	4	86.8	3	59	0.6× / 6.6
Nav aids · Irish Sea and St. George's Channelsurge	4	65.9	2	163	2.2× / 1.8
Nav aids · English Channelsurge	4	52.5	2	60	2.0× / 2
Incidents · South Pacific Ocean	4	48.2	0	—	0.6× / 7
Icebergs · South Atlantic Ocean	4	27.1	0	—	1.1× / 3.6
Other · Inner Seas off the West Coast of Scotlandsurge	4	21.2	1	29	10× / 0.4
Exercises · Arabian Sea	4	18.5	0	—	0.9× / 4.2
Quakes · North Pacific Ocean	4	14	0	—	1.0× / 4
Nav aids · Gulf of Alaskasurge	4	8.5	0	—	6.7× / 0.6
Nav aids · North Pacific Oceansurgelong running	3	197.4	4	536	7.5× / 0.4
Cable ops · Bay of Bengal	3	188.3	6	111	1.0× / 3
Cable ops · North Atlantic Ocean	3	43.9	2	65	0.9× / 3.4
Surveys · Gulf of Mexiconew	3	38.4	2	23	new / 0
Exercises · Baltic Seasurge	3	24.4	1	34	3.0× / 1
Containers · North Atlantic Ocean	3	19.2	0	—	1.9× / 1.6
Exercises · South Pacific Ocean	3	7.1	0	—	1.5× / 2
Nav aids · Celtic Sea	3	2	0	—	1.7× / 1.8
Other · Mediterranean Sea - Eastern Basinlong running	2	119.2	4	492	1.3× / 1.6
Other · South Atlantic Ocean	2	108.6	2	47	10× / 0.2
Nav aids · South Pacific Oceanlong running	2	98.7	2	661	0.6× / 3.2
Nav aids · Gulf of Mexico	2	68	2	361	1.4× / 1.4
Cable ops · Mediterranean Sea - Western Basin	2	63.1	1	35	1.7× / 1.2
Cable ops · Gulf of Suez	2	45.3	2	43	2.5× / 0.8
Spills · North Atlantic Ocean	2	39	1	42	0.7× / 3
Exercises · Philippine Sea	2	34.3	2	31	1.4× / 1.4
Nav aids · Laccadive Sea	2	26.9	0	—	2.5× / 0.8
Nav aids · Mediterranean Sea - Western Basin	2	26	1	22	1.4× / 1.4
Cable ops · Eastern China Sea	2	15.8	1	49	3.3× / 0.6
Containers · Philippine Seanew	2	12.9	0	—	new / 0
Incidents · South China Sea	2	12.8	1	14	0.8× / 2.6
Derelicts · Caribbean Sea	2	12.6	0	—	5.0× / 0.4
Ordnance · Persian Gulf	2	10.4	0	—	10× / 0.2
Derelicts · Philippine Sea	2	9.4	0	—	3.3× / 0.6
Exercises · Gulf of Mexico	2	8.1	0	—	10× / 0.2
Derelicts · North Pacific Ocean	2	6.9	0	—	10× / 0.2
Ordnance · Japan Sea	2	6.6	0	—	10× / 0.2
Quakes · Greenland Seanew	2	6	0	—	new / 0
Quakes · Molukka Sea	2	6	0	—	1.7× / 1.2
Other · North Atlantic Ocean	2	4.9	2	3	5.0× / 0.4
Quakes · Philippine Sea	2	3.4	1	15	0.6× / 3.6
Quakes · Bering Sea	2	3	2	1	3.3× / 0.6
Nav aids · Arafura Seanew	2	2.6	0	—	new / 0
Exercises · Bering Sea	2	2.3	1	14	10× / 0.2
Nav aids · Gulf of Californialong running	1	139.6	3	456	5.0× / 0.2
Nav aids · Gulf of Suez	1	107.3	4	333	1.3× / 0.8
Nav aids · North Atlantic Ocean	1	94	3	241	0.5× / 2.2
Wrecks · South Atlantic Ocean	1	74.8	2	171	2.5× / 0.4
Nav aids · Indian Oceanlong running	1	65	2	369	0.6× / 1.6
Nav aids · Mozambique Channel	1	57.1	1	55	0.8× / 1.2
Cable ops · Mediterranean Sea - Eastern Basin	1	38.6	1	75	0.3× / 3
Incidents · Bay of Biscay	1	37	1	57	5.0× / 0.2
Exercises · South China Sea	1	33.9	1	34	new / 0
Other · Indian Ocean	1	31.2	1	286	5.0× / 0.2
Surveys · Irish Sea and St. George's Channel	1	31	1	55	new / 0
Cable ops · Tasman Sea	1	27.4	1	27	2.5× / 0.4
Other · Caribbean Sea	1	27.1	1	27	5.0× / 0.2
Spills · Bering Sea	1	24	0	—	2.5× / 0.4
Volcanic · North Pacific Ocean	1	23.8	0	—	5.0× / 0.2
Cable ops · Black Sea	1	22.4	1	22	1.7× / 0.6
Nav aids · Black Sea	1	22.4	1	22	5.0× / 0.2
Cable ops · South China Sea	1	20.4	1	20	0.6× / 1.8
Surveys · North Atlantic Ocean	1	20.3	1	20	1.7× / 0.6
Ordnance · Gulf of Aden	1	15.5	1	15	new / 0
Surveys · Inner Seas off the West Coast of Scotland	1	13.1	1	13	new / 0
Incidents · Sea of Okhotsk	1	12.6	1	12	new / 0
Spills · Persian Gulf	1	12	1	12	new / 0
Spills · Caribbean Sea	1	11	1	11	1.7× / 0.6
Volcanic · South Pacific Ocean	1	10.7	1	10	1.7× / 0.6
Ordnance · North Pacific Ocean	1	10.1	0	—	5.0× / 0.2
Spills · Gulf of Alaska	1	9	1	9	new / 0
Cable ops · English Channel	1	8.2	0	—	1.3× / 0.8
Other · Mediterranean Sea - Western Basin	1	8.2	0	—	5.0× / 0.2
Derelicts · South Atlantic Ocean	1	6.8	0	—	0.4× / 2.4
Surveys · Baltic Sea	1	6.4	0	—	new / 0
Containers · Coral Sea	1	6.4	0	—	new / 0
Debris · Mediterranean Sea - Eastern Basin	1	6.4	0	—	5.0× / 0.2
Derelicts · South Pacific Ocean	1	6.4	0	—	1.0× / 1
Exercises · Barentsz Sea	1	6.2	0	—	new / 0
Quakes · Southern Ocean	1	5.6	0	—	1.3× / 0.8
Incidents · Tasman Sea	1	4.9	1	4	0.5× / 2
Exercises · Andaman or Burma Sea	1	4.8	0	—	1.0× / 1
Surveys · South Atlantic Ocean	1	3.8	1	76	0.4× / 2.6
Wrecks · Tasman Sea	1	3.1	0	—	new / 0
Incidents · Adriatic Sea	1	3	1	2	5.0× / 0.2
Quakes · Arabian Sea	1	3	0	—	new / 0
Quakes · Eastern China Sea	1	3	0	—	new / 0
Quakes · Indian Ocean	1	3	0	—	0.1× / 7.4
Quakes · Makassar Strait	1	3	0	—	new / 0
Quakes · Solomon Sea	1	3	0	—	1.0× / 1
Exercises · Mediterranean Sea - Eastern Basin	1	2.4	0	—	0.3× / 3.8
Other · Gulf of Aden	1	2.3	0	—	new / 0
Piracy · Indian Ocean	1	2.3	0	—	new / 0
Piracy · Arabian Sea	1	2.2	0	—	new / 0
Other · Red Sea	1	1.9	0	—	new / 0
Quakes · Gulf of Alaska	1	1.7	1	1	new / 0
Ordnance · Red Sea	1	1.4	0	—	new / 0
Nav aids · Bass Strait	1	1.2	0	—	1.3× / 0.8
Nav aids · Great Australian Bight	1	0.6	0	—	1.3× / 0.8
Incidents · Arafura Sea	1	0.3	0	—	1.0× / 1
Exercises · Coral Sea	1	0.1	0	—	2.5× / 0.4
Incidents · Ionian Sea	1	0	0	—	5.0× / 0.2
Surveys · Beaufort Sealong running	0	744	24	1,909	— / 0
Surveys · Arctic Oceanlong running	0	496	16	1,909	— / 0
Surveys · Baffin Baylong running	0	186	6	2,007	— / 0
Surveys · The Northwestern Passageslong running	0	186	6	892	— / 0
Exercises · Aegean Sea	0	124	4	67	0.0× / 3.6
Surveys · Laptev Sealong running	0	93	3	1,043	— / 0
Wrecks · Persian Gulf	0	93	3	137	0.0× / 0.4
Wrecks · The Northwestern Passages	0	93	3	206	— / 0
Incidents · Mediterranean Sea - Eastern Basin	0	68.4	2	72	0.0× / 1.8
Cable ops · Caribbean Sea	0	64.8	1	320	0.0× / 0.2
Cable ops · Indian Ocean	0	62	2	165	0.0× / 1.2
Volcanic · Indian Ocean	0	62	2	286	— / 0
Nav aids · Malacca Strait	0	62	2	260	0.0× / 0.4
Surveys · Malacca Strait	0	62	2	265	— / 0
Nav aids · Red Sea	0	62	2	193	— / 0
Wrecks · English Channel	0	51	0	—	— / 0
Cable ops · Gulf of Mexico	0	34.3	1	98	0.0× / 0.2
Debris · Arctic Oceanlong running	0	31	1	1,561	— / 0
Other · Arctic Oceanlong running	0	31	1	574	— / 0
Wrecks · Bay of Bengal	0	31	1	39	— / 0
Surveys · Bering Sea	0	31	1	166	— / 0
Other · Bismarck Sea	0	31	1	104	— / 0
Surveys · Chukchi Sealong running	0	31	1	1,442	— / 0
Other · Coral Sea	0	31	1	131	0.0× / 0.2
Surveys · Greenland Sealong running	0	31	1	2,225	— / 0
Other · Gulf of Aqaba	0	31	1	65	— / 0
Cable ops · Gulf of Guinea	0	31	1	46	0.0× / 0.6
Surveys · Gulf of Guinea	0	31	1	47	0.0× / 0.2
Surveys · Gulf of Suezlong running	0	31	1	426	— / 0
Wrecks · Inner Seas off the West Coast of Scotland	0	31	1	102	— / 0
Wrecks · Laccadive Sea	0	31	1	364	— / 0
Surveys · Mediterranean Sea - Eastern Basin	0	31	1	117	0.0× / 2.2
Incidents · Mediterranean Sea - Western Basin	0	31	1	40	0.0× / 0.2
Structures · North Atlantic Ocean	0	31	1	49	— / 0
Wrecks · North Atlantic Ocean	0	31	1	308	— / 0
Ordnance · North Sea	0	31	1	151	0.0× / 0.8
Nav aids · Persian Gulf	0	31	1	133	— / 0
Piracy · Persian Gulflong running	0	31	1	447	— / 0
Surveys · Persian Gulf	0	31	1	217	0.0× / 0.6
Volcanic · Philippine Sea	0	31	1	58	— / 0
Nav aids · Sea of Okhotsk	0	31	1	78	— / 0
Nav aids · South China Sealong running	0	31	1	373	0.0× / 0.2
Other · South China Sea	0	31	1	258	— / 0
Wrecks · South China Sealong running	0	31	1	615	— / 0
Cable ops · South Pacific Ocean	0	31	1	85	0.0× / 0.8
Cable ops · Sulu Sea	0	31	1	237	— / 0
Exercises · Alboran Sea	0	30.8	0	—	— / 0
Other · Arabian Sea	0	27.4	0	—	— / 0
Incidents · Mozambique Channel	0	27.4	0	—	0.0× / 0.2
Surveys · Timor Sea	0	27.4	0	—	— / 0
Cable ops · Laccadive Sea	0	20	0	—	0.0× / 1.2
Incidents · Philippine Sea	0	18.6	0	—	0.0× / 6.4
Incidents · Japan Sea	0	13.4	0	—	0.0× / 0.2
Cable ops · Singapore Strait	0	10.6	0	—	— / 0
Derelicts · North Atlantic Ocean	0	6	0	—	0.0× / 0.8
Icebergs · Labrador Sea	0	4	0	—	0.0× / 0.8
Spills · North Pacific Ocean	0	3	0	—	0.0× / 1
Containers · Mediterranean Sea - Western Basin	0	1.5	0	—	0.0× / 0.2
Quakes · Banda Sea	0	0.9	0	—	0.0× / 1.8
Quakes · South China Sea	0	0.5	0	—	0.0× / 0.6
Debris · Gulf of Mexico	0	0	0	—	— / 0
Other · Ionian Sea	0	0	0	—	— / 0
Surveys · Mediterranean Sea - Western Basin	0	0	0	—	0.0× / 0.4

Cite: seahazards.com Sea Ledger, 2009-03, 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.