Sea Ledger, June 2001

2001-06-01 to 2001-06-30 · archive

issued: 402
warning-days in force: 6,018
in force at month end: 203
sea × type cells: 180

baseline: same month, previous 5 years (2000-06, 1999-06, 1998-06, 1997-06)

By type

type	issued	warning-days	in force at end
Cable ops	67	785.7	27
Incidents	66	706.8	28
Nav aids	51	2,171.5	74
Surveys	51	295.5	10
Exercises	47	350.6	7
Quakes	40	120.1	1
Other	24	470.6	18
Ordnance	23	77.9	2
Wrecks	9	798.3	27
Derelicts	7	28.7	1
Icebergs	6	14.5	3
Missiles	5	60	2
Spills	4	56	0
Containers	1	2.8	1
Restricted	1	6.6	0
Volcanic	0	0.4	0
War risk	0	60	2
Debris	0	12	0

By sea and type · 180 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Oceansurge	33	85.8	1	32	2.0× / 16.5
Surveys · Celtic Seasurge	21	49.2	0	—	2.7× / 7.75
Quakes · South Pacific Oceansurge	19	57	0	—	2.9× / 6.5
Incidents · North Pacific Oceansurge	13	176.4	8	49	4.7× / 2.75
Surveys · North Seasurge	12	51.8	3	126	9.6× / 1.25
Nav aids · South Atlantic Oceansurge	11	261.6	10	332	3.4× / 3.25
Exercises · Aegean Seasurge	11	145.2	3	179	4.4× / 2.5
Exercises · North Atlantic Oceansurge	11	31.9	1	28	3.1× / 3.5
Incidents · North Atlantic Oceansurge	8	76.2	4	70	2.7× / 3
Incidents · Coral Seasurge	8	45.8	1	64	11× / 0.75
Ordnance · North Atlantic Oceansurge	8	35.8	0	—	8.0× / 1
Cable ops · North Seasurge	8	34.1	1	32	2.7× / 3
Cable ops · South China Seasurge	7	168.9	7	151	9.3× / 0.75
Incidents · Indian Oceansurge	7	49.5	2	24	7.0× / 1
Exercises · Mediterranean Sea - Eastern Basinsurge	7	32.6	1	26	9.3× / 0.75
Quakes · North Pacific Ocean	7	21.8	0	—	1.8× / 4
Ordnance · Norwegian Seanew	6	15.1	0	—	new / 0
Surveys · Bristol Channelsurge	6	9.9	1	16	8.0× / 0.75
Cable ops · North Atlantic Ocean	5	83.8	3	149	0.7× / 7.75
Missiles · North Pacific Ocean	5	60	2	33	1.5× / 3.25
Other · North Atlantic Oceansurge	5	44.5	1	182	2.5× / 2
Nav aids · Inner Seas off the West Coast of Scotlandsurgelong running	5	34.7	1	431	5.0× / 1
Exercises · Adriatic Seasurge	5	14.8	0	—	2.0× / 2.5
Incidents · South Atlantic Oceansurge	5	12.8	1	69	2.2× / 2.25
Exercises · Mediterranean Sea - Western Basinsurge	5	8.3	0	—	2.2× / 2.25
Nav aids · English Channelsurge	4	83.7	3	257	2.0× / 2
Exercises · Black Seasurge	4	64.9	1	73	8.0× / 0.5
Incidents · South Pacific Oceansurge	4	37.2	3	40	5.3× / 0.75
Surveys · English Channel	4	15	1	79	1.6× / 2.5
Quakes · Solomon Seasurge	4	11.3	1	32	5.3× / 0.75
Nav aids · North Sealong running	3	184.6	6	467	1.1× / 2.75
Wrecks · North Seasurgelong running	3	74.1	3	482	12× / 0.25
Nav aids · Irish Sea and St. George's Channellong running	3	63.3	2	423	1.7× / 1.75
Nav aids · Celtic Sea	3	62.2	2	81	1.7× / 1.75
Incidents · Celtic Seanew	3	41.6	2	29	new / 0
Incidents · Philippine Seasurge	3	37.8	1	46	2.4× / 1.25
Cable ops · Bay of Bengalnew	3	16.6	1	58	new / 0
Derelicts · Arabian Seanew	3	11.4	0	—	new / 0
Quakes · Philippine Sea	3	9	0	—	0.7× / 4.5
Ordnance · Tyrrhenian Seasurge	3	8.8	1	22	3.0× / 1
Incidents · Tasman Seanew	3	0.5	0	—	new / 0
Cable ops · Persian Gulf	2	127.4	4	264	1.6× / 1.25
Nav aids · Persian Gulf	2	85.2	2	110	8.0× / 0.25
Cable ops · Eastern China Sea	2	75	3	37	0.9× / 2.25
Other · Japan Seanew	2	66.3	2	33	new / 0
Wrecks · Persian Gulf	2	55.3	2	152	2.7× / 0.75
Nav aids · South Pacific Oceanlong running	2	54.7	2	421	2.7× / 0.75
Cable ops · Tasman Sea	2	49	2	63	1.1× / 1.75
Nav aids · Bristol Channel	2	30.7	0	—	4.0× / 0.5
Nav aids · South China Sea	2	28.9	2	16	4.0× / 0.5
Spills · Gulf of Mexico	2	28	0	—	1.0× / 2
Nav aids · Philippine Seanew	2	24.2	1	25	new / 0
Nav aids · Mediterranean Sea - Western Basin	2	20.9	1	29	2.0× / 1
Exercises · South Atlantic Ocean	2	11.4	1	10	8.0× / 0.25
Icebergs · South Atlantic Ocean	2	10.3	1	10	1.6× / 1.25
Derelicts · South Pacific Ocean	2	10.1	1	36	4.0× / 0.5
Incidents · Arabian Seanew	2	9.6	0	—	new / 0
Incidents · South China Sea	2	9.5	1	9	8.0× / 0.25
Ordnance · Eastern China Seanew	2	8.8	0	—	new / 0
Cable ops · Caribbean Seanew	2	6.9	0	—	new / 0
Quakes · Mediterranean Sea - Eastern Basin	2	6	0	—	8.0× / 0.25
Wrecks · Malacca Straitnew	2	5.5	1	5	new / 0
Surveys · Tyrrhenian Sea	2	4	0	—	1.6× / 1.25
Other · Celtic Seanew	2	3.6	1	25	new / 0
Nav aids · Gulf of Suez	2	2.6	2	1	4.0× / 0.5
Icebergs · Labrador Seanew	2	2.2	2	1	new / 0
Icebergs · North Atlantic Ocean	2	2	0	—	2.0× / 1
Other · Labrador Seanew	2	0.6	2	0	new / 0
Nav aids · Coral Sealong running	1	180.7	6	626	0.4× / 2.25
Nav aids · Solomon Sea	1	136	5	170	new / 0
Nav aids · North Atlantic Ocean	1	113.8	3	308	0.7× / 1.5
Nav aids · Andaman or Burma Sea	1	75.1	2	151	4.0× / 0.25
Other · Tyrrhenian Sea	1	43.8	1	58	2.0× / 0.5
Other · South Atlantic Ocean	1	39.7	1	116	4.0× / 0.25
Wrecks · Tasman Sea	1	36.3	2	71	new / 0
Other · North Sealong running	1	36.1	2	453	2.0× / 0.5
Nav aids · Timor Sealong running	1	34.1	1	522	new / 0
Other · Yellow Sea	1	32.1	1	31	new / 0
Other · South Pacific Ocean	1	32	1	38	0.8× / 1.25
Incidents · Mozambique Channel	1	30.2	0	—	4.0× / 0.25
Nav aids · Adriatic Sealong running	1	30	1	830	new / 0
Other · English Channel	1	30	1	52	1.0× / 1
Surveys · Inner Seas off the West Coast of Scotland	1	30	1	42	4.0× / 0.25
Incidents · Bismarck Sea	1	25.2	1	25	new / 0
Surveys · Coral Sea	1	24.7	1	24	new / 0
Nav aids · Tasman Sea	1	22.2	0	—	new / 0
Incidents · Yellow Sea	1	21.7	1	21	new / 0
Surveys · North Atlantic Ocean	1	20.1	0	—	4.0× / 0.25
Exercises · Bay of Bengal	1	15.5	0	—	1.3× / 0.75
Spills · North Atlantic Ocean	1	14	0	—	0.3× / 3
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	14	0	—	1.3× / 0.75
Surveys · Aegean Sea	1	13	0	—	new / 0
Surveys · Irish Sea and St. George's Channel	1	12.1	1	12	1.3× / 0.75
Nav aids · Japan Sea	1	11.1	1	11	new / 0
Cable ops · Mediterranean Sea - Eastern Basin	1	10.5	1	10	1.3× / 0.75
Other · Rio de La Plata	1	8.7	1	8	new / 0
Wrecks · Arafura Sea	1	7.9	1	7	new / 0
Cable ops · Irish Sea and St. George's Channel	1	7.4	0	—	4.0× / 0.25
Derelicts · North Atlantic Ocean	1	6.9	0	—	0.7× / 1.5
Restricted · North Atlantic Ocean	1	6.6	0	—	4.0× / 0.25
Ordnance · Adriatic Sea	1	6.4	0	—	0.2× / 4.5
Exercises · North Pacific Ocean	1	6.3	0	—	0.2× / 4.25
Incidents · Solomon Sea	1	6.2	1	6	new / 0
Surveys · Bass Strait	1	4.4	0	—	new / 0
Other · Indian Ocean	1	4	0	—	2.0× / 0.5
Other · Persian Gulf	1	3.5	0	—	new / 0
Other · Mediterranean Sea - Eastern Basin	1	3.1	0	—	2.0× / 0.5
Quakes · Aegean Sea	1	3	0	—	new / 0
Quakes · Arabian Sea	1	3	0	—	new / 0
Quakes · Coral Sea	1	3	0	—	1.3× / 0.75
Quakes · Gulf of Alaska	1	3	0	—	new / 0
Quakes · Molukka Sea	1	3	0	—	2.0× / 0.5
Containers · Great Australian Bight	1	2.8	1	2	new / 0
Cable ops · Gulf of Mexico	1	2.1	1	2	new / 0
Other · Aegean Sea	1	1.4	0	—	new / 0
Ordnance · Philippine Sea	1	1.4	1	1	1.3× / 0.75
Incidents · Java Sea	1	1.3	0	—	new / 0
Ordnance · Mediterranean Sea - Western Basin	1	1.1	0	—	4.0× / 0.25
Other · Inner Seas off the West Coast of Scotland	1	1	0	—	4.0× / 0.25
Incidents · Aegean Sea	1	0.5	0	—	new / 0
Incidents · Arafura Sea	1	0.5	0	—	new / 0
Ordnance · Greenland Sea	1	0.5	0	—	4.0× / 0.25
Derelicts · North Pacific Ocean	1	0.3	0	—	4.0× / 0.25
Other · Arabian Sea	1	0.2	0	—	4.0× / 0.25
Incidents · Timor Sea	1	0.1	0	—	new / 0
Nav aids · Mozambique Channel	0	150.8	5	324	— / 0
Nav aids · North Pacific Ocean	0	120	4	241	— / 0
Wrecks · Red Sealong running	0	90	3	417	— / 0
Wrecks · Coral Sealong running	0	81.4	2	397	— / 0
Wrecks · Tyrrhenian Sealong running	0	66.4	2	982	— / 0
Wrecks · South China Sealong running	0	60.4	2	529	— / 0
Wrecks · English Channellong running	0	60	2	731	0.0× / 0.5
War risk · Persian Gulf	0	60	2	149	0.0× / 1
Nav aids · Tyrrhenian Sea	0	60	2	67	0.0× / 1.75
Incidents · Japan Sea	0	49.8	0	—	— / 0
Wrecks · South Atlantic Ocean	0	37	0	—	0.0× / 0.25
Wrecks · Arabian Sea	0	30.4	1	275	— / 0
Other · Adriatic Sealong running	0	30	1	422	0.0× / 0.5
Wrecks · Baltic Sea	0	30	1	183	— / 0
Wrecks · Bay of Biscay	0	30	1	224	— / 0
Nav aids · Bismarck Sea	0	30	1	58	— / 0
Cable ops · Black Sea	0	30	1	80	— / 0
Nav aids · Caribbean Sea	0	30	1	30	0.0× / 0.25
Nav aids · Eastern China Sea	0	30	1	250	— / 0
Nav aids · Great Australian Bight	0	30	1	72	0.0× / 0.25
Other · Greenland Sea	0	30	1	311	— / 0
Nav aids · Gulf of Mexicolong running	0	30	1	402	— / 0
Wrecks · Irish Sea and St. George's Channel	0	30	1	362	0.0× / 0.5
Wrecks · Kattegat	0	30	1	131	— / 0
Nav aids · Laccadive Sea	0	30	1	65	— / 0
Incidents · Makassar Strait	0	30	1	37	— / 0
Nav aids · Malacca Straitlong running	0	30	1	565	— / 0
Surveys · Mediterranean Sea - Western Basin	0	30	1	173	0.0× / 0.75
Wrecks · Mediterranean Sea - Western Basin	0	30	1	64	— / 0
Surveys · Persian Gulf	0	30	1	73	0.0× / 0.25
Cable ops · Philippine Sea	0	30	1	56	— / 0
Nav aids · Red Sea	0	30	1	229	— / 0
Nav aids · Singapore Strait	0	30	1	109	0.0× / 0.5
Wrecks · Skagerrak	0	30	1	234	— / 0
Other · South China Sealong running	0	30	1	676	— / 0
Nav aids · Sulu Sea	0	30	1	169	— / 0
Other · Tasman Sea	0	30	1	64	0.0× / 0.25
Incidents · Tyrrhenian Sea	0	30	1	37	— / 0
Cable ops · Yellow Sea	0	30	1	34	0.0× / 0.75
Exercises · Tyrrhenian Sea	0	19.7	0	—	0.0× / 1.25
Cable ops · Indian Ocean	0	15.4	0	—	— / 0
Incidents · North Sea	0	14.4	0	—	— / 0
Cable ops · Aegean Sea	0	11.8	0	—	— / 0
Wrecks · Adriatic Sea	0	6.4	0	—	— / 0
Wrecks · North Atlantic Ocean	0	6.4	0	—	0.0× / 0.25
Debris · English Channel	0	6	0	—	— / 0
Debris · Mediterranean Sea - Western Basin	0	6	0	—	— / 0
Surveys · South China Sea	0	1.3	0	—	0.0× / 0.25
Cable ops · Arabian Sea	0	1	0	—	0.0× / 0.25
Wrecks · South Pacific Ocean	0	0.8	0	—	0.0× / 0.5
Nav aids · Bay of Bengal	0	0.4	0	—	— / 0
Volcanic · South Pacific Ocean	0	0.4	0	—	— / 0
Containers · Inner Seas off the West Coast of Scotland	0	0	0	—	— / 0
Debris · North Atlantic Ocean	0	0	0	—	0.0× / 0.5
Surveys · Philippine Sea	0	0	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2001-06, 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.