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Radio Navigational Warnings (RNWs)

We act as the NAVAREA I (NE Atlantic) Co-ordinator for the International Maritime Organisation (IMO) and International Hydrographic Organization (IHO) Worldwide Navigational Warning Service (WWNWS) and also as the United Kingdom National Co-ordinator for issuing coastal navigational warnings.

Whilst the UKHO will attempt to keep this site up-to-date by adding and cancelling navigational warnings in real time, for reasons beyond its control, this may not always be possible.

The approved method of receiving Maritime Safety Information (MSI) is via the appropriate IMO, Global Maritime Distress and Safety System (GMDSS) broadcast systems as defined by the WWNWS. For more information please see the 'About RNWs' tab below.

Low bandwidth
Information

The following NAVAREA 1 and UK Coastal Warnings (WZs) were in force at: 211210 UTC October 21

​​​​​​​​​​

Ref Date Time Group Description
NAVAREA 1 196/21 210400 UTC Oct 21 NORTH EAST ATLANTIC. Southwestern Approaches to the Celtic Sea and the English Channel. Porcupine Abyssal Plain eastward. Chart GB 4103 (INT 103). 1. Hazardous operations, missile firing and fallout daily between 1000 UTC and 1800 UTC, from 26 to 29 Oct

NAVAREA 1

NAVAREA 1 196/21

210400 UTC Oct 21

NORTH EAST ATLANTIC.
Southwestern Approaches to the Celtic Sea and the English Channel. 
Porcupine Abyssal Plain eastward. 
Chart GB 4103 (INT 103).
1. Hazardous operations, missile firing and fallout daily between 1000 UTC and 1800 UTC, from 26 to 29 Oct within area bounded by: 49-48N 012-59W, 49-48N 011-53W, 49-26N 011-27W, 48-21N 011-27W, 46-45N 012-47W, 46-45N 013-49W, 47-08N 014-16W and 48-16N 014-16W.
2.  Cancel this message 291900Z Oct 21.
WZ 1118/21 200735 UTC Oct 21 GMDSS. MRCC Falmouth. VHF R/T and DSC services from Trevose Head site, off air.

UK Coastal

WZ 1118/21

200735 UTC Oct 21

​GMDSS. MRCC Falmouth.
VHF R/T and DSC services from Trevose Head site, 50-32.9N 005-02.0W, off air.
WZ 1116/21 191525 UTC Oct 21 ENGLISH CHANNEL, Strait of Dover. Folkestone. Folkstone Breakwater lighthouse, unlit

UK Coastal

WZ 1116/21

191525 UTC Oct 21

ENGLISH CHANNEL, Strait of Dover.
Folkestone.
Folkstone Breakwater lighthouse, 51-04.6N 001-11.7E, unlit.
WZ 1112/21 190005 UTC Oct 21 ENGLISH CHANNEL. TSS in the Strait of Dover. Les Ridens Southwards. Dropped 50 metre wire.

UK Coastal

WZ 1112/21

190005 UTC Oct 21

​ENGLISH CHANNEL.
TSS in the Strait of Dover.
Les Ridens Southwards.
Dropped 50 metre wire reported between 50-41.7N 001-17.4E and 50-42.3N 001-17.9E.
WZ 1111/21 182320 UTC Oct 21 NORTH SEA, UK SECTOR. Barque Gas Field. Platform 48/13-PB, unlit and all navaids inoperative.

UK Coastal

WZ 1111/21

182320 UTC Oct 21

NORTH SEA, UK SECTOR.
Barque Gas Field.
1. Platform 48/13-PB, 53-36.8N 001-31.6E, unlit and all navaids inoperative.
2. Cancel WZ 1069.
NAVAREA I 192/21 180500 UTC Oct 21 RIGLIST. Correct 180500 UTC Oct 21.

NAVAREA 1

NAVAREA I 192/21

180500 UTC Oct 21

1. RIGLIST. Correct at 180500 UTC Oct 21.

    Southern North Sea: 51N to 55N
    52-22.7N 003-23.9E  Maersk Resolute ACP P11-Unity
    52-29.7N 004-12.8E  Prospector 1 ACP Q10-A
NEW 52-46.7N 004-16.0E  Swift 10
    53-00.0N 001-50.8E  Valaris 72 ACP Hewett Gas Field
    53-11.9N 002-29.1E  Haeva ACP Bessemer Gas Field
    53-14.0N 003-14.5E  590021
NEW Dundee              Noble Hans Deul
    53-18.4N 003-56.9E  Seafox 4 ACP K15-FG-1
    53-27.8N 001-55.1E  Maersk Resilient ACP Galleon Gas Field
    53-33.7N 000-52.7E  Erda ACP Amethyst Gas Field
    53-38.2N 000-56.3E  Seafox 7 ACP RCS planned platform
    54-02.5N 000-26.5E  Valaris 123
    54-03.0N 002-29.4E  Valaris Gorilla V ACP Ketch Gas Field
    54-11.4N 002-12.7E  Valaris 92
    54-35.8N 000-26.0E  Maersk Resolve ACP Breagh Gas Field

    North Sea: 55N to 60N, East of 5W
    55-28.5N 005-06.3E  Noble Sam Turner ACP Dan Oil Field
    56-10.8N 003-27.9E  Maersk Invincible ACP Hod Oil Field
    56-15.0N 003-20.8E  Maersk Reacher ACP Valhall Oil Field
    56-35.0N 002-28.9E  Valaris 121
    56-38.5N 003-19.5E  West Linus ACP Tor Oil Field
    56-51.0N 002-15.3E  Valaris 120 ACP Jade Oil Field
    57-00.8N 001-50.5E  Maersk Highlander ACP Elgin Gas Field
    57-01.3N 001-48.0E  Safe Caledonia
    57-01.9N 001-57.3E  Valaris 122 ACP Shearwater Oil Field
    57-06.2N 002-37.6E  Maersk Integrator
    57-09.2N 001-40.4E  Valaris Gorilla VI
    57-10.1N 001-05.3E  Prospector 5
    57-48.9N 004-32.0E  Maersk Inspirer ACP YME platform
    57-49.9N 001-50.7E  Paul B Loyd Junior
    58-08.0N 001-55.8E  COSL Innovator
    58-17.1N 002-02.5E  Deepsea Atlantic
    58-27.1N 003-31.3E  Deepsea Stavanger
    58-41.0N 002-11.9E  West Bollsta
    58-50.5N 002-14.9E  Rowan Viking alongside platform under construction, Norwegian Sector
    58-50.7N 001-44.6E  Rowan Stavanger ACP Gudrun Oil and Gas Field
    59-14.2N 002-26.6E  West Phoenix
    59-22.7N 001-40.8E  Ocean Patriot
    59-32.7N 001-59.2E  Deepsea Nordkapp

    Norwegian Sea:  60N to 65N, East of 5W
    60-15.8N 002-46.5E  Askepott
    60-30.4N 002-00.9E  Maersk Intrepid ACP Martin Linge platform
    60-48.5N 003-33.4E  Transocean Equinox
    60-53.7N 003-39.3E  Transocean Endurance
    61-02.4N 002-20.2E  Noble Lloyd Noble ACP Valemon
    61-10.4N 003-26.4E  Deepsea Aberdeen
    61-29.7N 002-08.8E  Transocean Spitsbergen
    61-31.5N 001-59.1E  Deepsea Yantai
    61-40.3N 001-29.2E  Ocean Endeavor
    63-53.1N 006-46.2E  Borgland Dolphin
    64-53.2N 007-04.1E  Transocean Norge
    64-58.8N 007-02.9E  West Hercules

    South and West Coasts of the British Isles
    51-12.2N 008-21.1W  Stena Spey

NOTES:
A. Rigs are protected by a 500 metre safety zone.
B. ACP - Adjacent to Charted Platform.
C. For Rigs located North of 65N, East of 5W, refer to Navarea XIX Warnings or visit www.navarea-xix.no

2. Cancel 187/21.
NAVAREA I 190/21 151000 UTC Oct 21 NAVAREA I WARNINGS IN FORCE AT 151000Z OCT 21.

NAVAREA 1

NAVAREA I 190/21

151000 UTC Oct 21

NAVAREA I 190/21
1. NAVAREA I WARNINGS IN FORCE AT 151000Z OCT 21:

2021 SERIES: 031, 160, 166, 171, 179, 180, 183, 187, 190.

NOTES:
A. Texts of NAVAREA I Warnings issued each week are published in weekly editions of the ADMIRALTY Notices to Mariners bulletin (ANMB).
B. NAVAREA I Warnings less than 42 days old (171/21 onward) are promulgated via Enhanced Group Call (EGC) and/or relevant NAVTEX transmitters.
C. The complete texts of all in-force NAVAREA I warnings, including those which are no longer being broadcast, are reprinted in Section III of ANMB in weeks 1, 13, 26 and 39 and are also available from the UKHO website at: www.admiralty.co.uk/RNW.
Alternatively, these may be requested by e-mail from NAVAREA I Co-ordinator at: navwarnings(at)ukho.gov.uk

2. Cancel NAVAREA I 186/21.
WZ 1096/21 150900 UTC Oct 21 NORTH SEA, UK SECTOR. Moray Firth. Beatrice Oil Field. Platform 11/30-C, fog signal inoperative.

UK Coastal

WZ 1096/21

150900 UTC Oct 21

NORTH SEA, UK SECTOR.
Moray Firth.
Beatrice Oil Field.
1. Platform 11/30-C, 58-05.7N 003-09.1W, fog signal inoperative.
2. Cancel WZ 953.
WZ 1095/21 141345 UTC Oct 21 NORTH SEA, UK SECTOR. Galleon Gas Field. Platform 48/20-PN, unlit.

UK Coastal

WZ 1095/21

141345 UTC Oct 21

​NORTH SEA, UK SECTOR. Galleon Gas Field.
1. Platform 48/20-PN, 53-27.7N 001-55.0E, unlit.
2. Cancel WZ 951.
WZ 1094/21 140915 UTC Oct 21 ENGLAND, EAST COAST. Hornsea Offshore Windfarm. Turbine H27, fog signal inoperative.

UK Coastal

WZ 1094/21

140915 UTC Oct 21

​ENGLAND, EAST COAST.
Hornsea Offshore Windfarm.
Turbine H27, 53-54.6N 001-39.9E, fog signal inoperative.
WZ 1093/21 140420 UTC Oct 21 ENGLAND, EAST COAST. Approaches to the Wash. Race Bank Wind Farm. Fog signals inoperative at turbines.

UK Coastal

WZ 1093/21

140420 UTC Oct 21

ENGLAND, EAST COAST.
Approaches to the Wash.
Race Bank Wind Farm.
Fog signals are inoperative at turbines in the following positions,
53-14.9N 000-48.9E
53-15.7N 000-55.9E
53-17.8N 000-46.3E
53-20.1N 000-49.1E.
WZ 1089/21 121525 UTC Oct 21 NORTH SEA. Indefatigable Banks North-westwards. Tethys Gas Field. Tethys Platform unlit and all navaids inoperative.

UK Coastal

WZ 1089/21

121525 UTC Oct 21

​NORTH SEA.
Indefatigable Banks North-westwards.
Tethys Gas Field.
Tethys Platform, 53-39.0N 002-03.4E, unlit and all navaids inoperative.
WZ 1085/21 101000 UTC Oct 21 NORTH SEA, UK SECTOR. Off Botney Ground TSS. Shamrock platform unlit and all navaids inoperative.

UK Coastal

WZ 1085/21

101000 UTC Oct 21

NORTH SEA, UK SECTOR.
Off Botney Ground TSS.
1. Shamrock platform, 53-28.2N 002-55.2E, unlit and all navaids inoperative. 
2. Cancel WZ 940.
WZ 1067/21 070930 UTC Oct 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform 49/27-J unlit and all navaids inoperative.

UK Coastal

WZ 1067/21

070930 UTC Oct 21

​SOUTHERN NORTH SEA.
Leman Gas Field.
Platform 49/27-J, 53-02.0N 002-13.1E, unlit and all navaids inoperative.
WZ 1056/21 041220 UTC Oct 21 SOUTHERN NORTH SEA. Davy Gas Field. Davy Platform 49/30A, unlit and all aids to navigation inoperative.

UK Coastal

WZ 1056/21

041220 UTC Oct 21

​SOUTHERN NORTH SEA.
Davy Gas Field.
Davy Platform 49/30A, 53-00.3N 002-53.8E, unlit and all aids to navigation inoperative.
WZ 1048/21 291515 UTC Sep 21 NORTH SEA, UK SECTOR. Corvette Gas Field. Corvette Platform 49/24 fog signal inoperative.

UK Coastal

WZ 1048/21

291515 UTC Sep 21

NORTH SEA, UK SECTOR.
Corvette Gas Field.
Corvette Platform 49/24, 53-13.9N 002-37.2E, fog signal inoperative.
NAVAREA I 183/21 281120 UTC Sep 21 NORTH SEA, UK SECTOR. Long Forties Eastwards. Safety Zone established.

NAVAREA 1

NAVAREA I 183/21

281120 UTC Sep 21

NORTH SEA, UK SECTOR.
Long Forties Eastwards.
Chart GB 273.
Safety Zone, radius 500 metres, established centred on 57-01.5N 000-50.4E.
NAVAREA I 180/21 251210 UTC Sep 21 ENGLAND, SOUTH COAST. Isle of Wight. Saint Catherine’s Point Lighthouse, light range permanently changed to 18 miles.

NAVAREA 1

NAVAREA I 180/21

251210 UTC Sep 21

​ENGLAND, SOUTH COAST.
Isle of Wight.
Saint Catherine’s Point Lighthouse, 50-34.5N 001-17.9W, light range permanently changed to 18 miles.
NAVAREA I 179/21 250435 UTC Sep 21 SCOTLAND EAST COAST. Approaches to River Tay, Scalp Bank. Light buoys established.

NAVAREA 1

NAVAREA I 179/21

250435 UTC Sep 21

​SCOTLAND EAST COAST.
Approaches to River Tay, Scalp Bank.
Chart GB 1409 (INT 1504).
1. Light buoys established marking the perimeter of the future Seagreen Offshore Windfarm as follows:
North Cardinal light buoy 1, AIS, 56-40.6N 001-56.7W,
North Cardinal light buoy 2, 56-40.7N 001-38.9W,
East Cardinal light buoy 1, AIS, 56-38.6N 001-33.3W,
East Cardinal light buoy 2, AIS,  56-31.8N 001-29.3W,
South Cardinal light buoy, AIS, 56-30.8N 001-56.1W,
And Special light buoys in:
56-40.6N 001-50.5W, 56-40.7N 001-44.6W, 56-35.2N 001-30.5W, 56-31.4N 001-35.6W, 56-31.1N 001-42.2W,
56-30.9N 001-49.0W, 56-33.8N 001-57.1W and 56-37.2N 001-57.2W.
2. Cancel Navarea I 178/21.
WZ 1020/21 221650 UTC Sep 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform 49/27-H, unlit and all navaids inoperative.

UK Coastal

WZ 1020/21

221650 UTC Sep 21

SOUTHERN NORTH SEA.
Leman Gas Field.
1. Platform 49/27-H, 53-00.3N 002-12.9E, unlit and all navaids inoperative.
2. Cancel WZ 1000.
WZ 993/21 151620 UTC Sep 21 SCOTLAND, EAST COAST. Neart na Gaoithe Offshore Wind Farm Northwards. Met Mast, AIS inoperative.

UK Coastal

WZ 993/21

151620 UTC Sep 21

​SCOTLAND, EAST COAST.
Neart na Gaoithe Offshore Wind Farm Northwards.
1. Met Mast, 56-26.4N 002-14.5W, AIS inoperative.
2. Cancel WZ 834.
NAVAREA I 171/21 110415 UTC Sep 21 ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Sunk Centre Light Vessel permanently replaced by Safe Water pillar light-buoy.

NAVAREA 1

NAVAREA I 171/21

110415 UTC Sep 21

​ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Charts GB 1183 (INT 1561) and GB 2052 (INT 1560).
1. Sunk Centre Light Vessel, 51-50.1N 001-46.0E, permanently replaced by Safe Water pillar light-buoy, Mo(A) 15s, with radar beacon Racon (C) and AIS aid to navigation MMSI 992351034.
2. Cancel Navarea I 015/21.
NAVAREA I 031/21 181540 UTC Mar 21 NOTIFICATION OF INITIAL OPERATIONAL CAPABILITY OF IRIDIUM SAFETYCAST SERVICES.

NAVAREA 1

NAVAREA I 031/21

181540 UTC Mar 21

NOTIFICATION OF INITIAL OPERATIONAL CAPABILITY OF IRIDIUM SAFETYCAST SERVICES. 
NAVAREA I AND METAREA I CO-ORDINATORS ARE COMMENCING INITIAL OPERATIONAL CAPABILITY (IOC) PHASE FOR IRIDIUM SAFETYCAST NAVIGATIONAL WARNINGS AND METEOROLOGICAL INFORMATION, EFFECTIVE 23 MARCH 2021. 
NAVAREA I AND METAREA I WILL PROMULGATE SAFETYCAST MESSAGES AS PART OF A NUMBERED SERIES DURING IOC IN ACCORDANCE WITH THE JOINT IMO/IHO/WMO MARITIME SAFETY INFORMATION MANUAL. 
MESSAGES MAY BE INTERMITTENT AND WILL ALSO BE SUPPLEMENTED BY TEST MESSAGES WHICH WILL BE CLEARLY DEFINED IN THE MESSAGE HEADER. 
MARINERS ARE ADVISED THAT IOC WILL BE IN PLACE FOR NAVAREA I AND METAREA I UNTIL FURTHER NOTICE. 
SEE UK ADMIRALTY NOTICES TO MARINERS SECTION VI FOR FURTHER INFORMATION. CONTACT INFORMATION FOR NAVAREA I IS; PHONE: +44 (0)1823 353448, FAX: +44 (0)1823 322352, EMAIL: NAVWARNINGS@UKHO.GOV.UK. 
​

​​
Ref Date Time Group Description
NAVAREA 1 196/21 210400 UTC Oct 21 NORTH EAST ATLANTIC. Southwestern Approaches to the Celtic Sea and the English Channel. Porcupine Abyssal Plain eastward. Chart GB 4103 (INT 103). 1. Hazardous operations, missile firing and fallout daily between 1000 UTC and 1800 UTC, from 26 to 29 Oct

NAVAREA 1

NAVAREA 1 196/21

210400 UTC Oct 21

NORTH EAST ATLANTIC.
Southwestern Approaches to the Celtic Sea and the English Channel. 
Porcupine Abyssal Plain eastward. 
Chart GB 4103 (INT 103).
1. Hazardous operations, missile firing and fallout daily between 1000 UTC and 1800 UTC, from 26 to 29 Oct within area bounded by: 49-48N 012-59W, 49-48N 011-53W, 49-26N 011-27W, 48-21N 011-27W, 46-45N 012-47W, 46-45N 013-49W, 47-08N 014-16W and 48-16N 014-16W.
2.  Cancel this message 291900Z Oct 21.
NAVAREA I 192/21 180500 UTC Oct 21 RIGLIST. Correct 180500 UTC Oct 21.

NAVAREA 1

NAVAREA I 192/21

180500 UTC Oct 21

1. RIGLIST. Correct at 180500 UTC Oct 21.

    Southern North Sea: 51N to 55N
    52-22.7N 003-23.9E  Maersk Resolute ACP P11-Unity
    52-29.7N 004-12.8E  Prospector 1 ACP Q10-A
NEW 52-46.7N 004-16.0E  Swift 10
    53-00.0N 001-50.8E  Valaris 72 ACP Hewett Gas Field
    53-11.9N 002-29.1E  Haeva ACP Bessemer Gas Field
    53-14.0N 003-14.5E  590021
NEW Dundee              Noble Hans Deul
    53-18.4N 003-56.9E  Seafox 4 ACP K15-FG-1
    53-27.8N 001-55.1E  Maersk Resilient ACP Galleon Gas Field
    53-33.7N 000-52.7E  Erda ACP Amethyst Gas Field
    53-38.2N 000-56.3E  Seafox 7 ACP RCS planned platform
    54-02.5N 000-26.5E  Valaris 123
    54-03.0N 002-29.4E  Valaris Gorilla V ACP Ketch Gas Field
    54-11.4N 002-12.7E  Valaris 92
    54-35.8N 000-26.0E  Maersk Resolve ACP Breagh Gas Field

    North Sea: 55N to 60N, East of 5W
    55-28.5N 005-06.3E  Noble Sam Turner ACP Dan Oil Field
    56-10.8N 003-27.9E  Maersk Invincible ACP Hod Oil Field
    56-15.0N 003-20.8E  Maersk Reacher ACP Valhall Oil Field
    56-35.0N 002-28.9E  Valaris 121
    56-38.5N 003-19.5E  West Linus ACP Tor Oil Field
    56-51.0N 002-15.3E  Valaris 120 ACP Jade Oil Field
    57-00.8N 001-50.5E  Maersk Highlander ACP Elgin Gas Field
    57-01.3N 001-48.0E  Safe Caledonia
    57-01.9N 001-57.3E  Valaris 122 ACP Shearwater Oil Field
    57-06.2N 002-37.6E  Maersk Integrator
    57-09.2N 001-40.4E  Valaris Gorilla VI
    57-10.1N 001-05.3E  Prospector 5
    57-48.9N 004-32.0E  Maersk Inspirer ACP YME platform
    57-49.9N 001-50.7E  Paul B Loyd Junior
    58-08.0N 001-55.8E  COSL Innovator
    58-17.1N 002-02.5E  Deepsea Atlantic
    58-27.1N 003-31.3E  Deepsea Stavanger
    58-41.0N 002-11.9E  West Bollsta
    58-50.5N 002-14.9E  Rowan Viking alongside platform under construction, Norwegian Sector
    58-50.7N 001-44.6E  Rowan Stavanger ACP Gudrun Oil and Gas Field
    59-14.2N 002-26.6E  West Phoenix
    59-22.7N 001-40.8E  Ocean Patriot
    59-32.7N 001-59.2E  Deepsea Nordkapp

    Norwegian Sea:  60N to 65N, East of 5W
    60-15.8N 002-46.5E  Askepott
    60-30.4N 002-00.9E  Maersk Intrepid ACP Martin Linge platform
    60-48.5N 003-33.4E  Transocean Equinox
    60-53.7N 003-39.3E  Transocean Endurance
    61-02.4N 002-20.2E  Noble Lloyd Noble ACP Valemon
    61-10.4N 003-26.4E  Deepsea Aberdeen
    61-29.7N 002-08.8E  Transocean Spitsbergen
    61-31.5N 001-59.1E  Deepsea Yantai
    61-40.3N 001-29.2E  Ocean Endeavor
    63-53.1N 006-46.2E  Borgland Dolphin
    64-53.2N 007-04.1E  Transocean Norge
    64-58.8N 007-02.9E  West Hercules

    South and West Coasts of the British Isles
    51-12.2N 008-21.1W  Stena Spey

NOTES:
A. Rigs are protected by a 500 metre safety zone.
B. ACP - Adjacent to Charted Platform.
C. For Rigs located North of 65N, East of 5W, refer to Navarea XIX Warnings or visit www.navarea-xix.no

2. Cancel 187/21.
NAVAREA I 190/21 151000 UTC Oct 21 NAVAREA I WARNINGS IN FORCE AT 151000Z OCT 21.

NAVAREA 1

NAVAREA I 190/21

151000 UTC Oct 21

NAVAREA I 190/21
1. NAVAREA I WARNINGS IN FORCE AT 151000Z OCT 21:

2021 SERIES: 031, 160, 166, 171, 179, 180, 183, 187, 190.

NOTES:
A. Texts of NAVAREA I Warnings issued each week are published in weekly editions of the ADMIRALTY Notices to Mariners bulletin (ANMB).
B. NAVAREA I Warnings less than 42 days old (171/21 onward) are promulgated via Enhanced Group Call (EGC) and/or relevant NAVTEX transmitters.
C. The complete texts of all in-force NAVAREA I warnings, including those which are no longer being broadcast, are reprinted in Section III of ANMB in weeks 1, 13, 26 and 39 and are also available from the UKHO website at: www.admiralty.co.uk/RNW.
Alternatively, these may be requested by e-mail from NAVAREA I Co-ordinator at: navwarnings(at)ukho.gov.uk

2. Cancel NAVAREA I 186/21.
NAVAREA I 183/21 281120 UTC Sep 21 NORTH SEA, UK SECTOR. Long Forties Eastwards. Safety Zone established.

NAVAREA 1

NAVAREA I 183/21

281120 UTC Sep 21

NORTH SEA, UK SECTOR.
Long Forties Eastwards.
Chart GB 273.
Safety Zone, radius 500 metres, established centred on 57-01.5N 000-50.4E.
NAVAREA I 180/21 251210 UTC Sep 21 ENGLAND, SOUTH COAST. Isle of Wight. Saint Catherine’s Point Lighthouse, light range permanently changed to 18 miles.

NAVAREA 1

NAVAREA I 180/21

251210 UTC Sep 21

​ENGLAND, SOUTH COAST.
Isle of Wight.
Saint Catherine’s Point Lighthouse, 50-34.5N 001-17.9W, light range permanently changed to 18 miles.
NAVAREA I 179/21 250435 UTC Sep 21 SCOTLAND EAST COAST. Approaches to River Tay, Scalp Bank. Light buoys established.

NAVAREA 1

NAVAREA I 179/21

250435 UTC Sep 21

​SCOTLAND EAST COAST.
Approaches to River Tay, Scalp Bank.
Chart GB 1409 (INT 1504).
1. Light buoys established marking the perimeter of the future Seagreen Offshore Windfarm as follows:
North Cardinal light buoy 1, AIS, 56-40.6N 001-56.7W,
North Cardinal light buoy 2, 56-40.7N 001-38.9W,
East Cardinal light buoy 1, AIS, 56-38.6N 001-33.3W,
East Cardinal light buoy 2, AIS,  56-31.8N 001-29.3W,
South Cardinal light buoy, AIS, 56-30.8N 001-56.1W,
And Special light buoys in:
56-40.6N 001-50.5W, 56-40.7N 001-44.6W, 56-35.2N 001-30.5W, 56-31.4N 001-35.6W, 56-31.1N 001-42.2W,
56-30.9N 001-49.0W, 56-33.8N 001-57.1W and 56-37.2N 001-57.2W.
2. Cancel Navarea I 178/21.
NAVAREA I 171/21 110415 UTC Sep 21 ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Sunk Centre Light Vessel permanently replaced by Safe Water pillar light-buoy.

NAVAREA 1

NAVAREA I 171/21

110415 UTC Sep 21

​ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Charts GB 1183 (INT 1561) and GB 2052 (INT 1560).
1. Sunk Centre Light Vessel, 51-50.1N 001-46.0E, permanently replaced by Safe Water pillar light-buoy, Mo(A) 15s, with radar beacon Racon (C) and AIS aid to navigation MMSI 992351034.
2. Cancel Navarea I 015/21.
NAVAREA I 031/21 181540 UTC Mar 21 NOTIFICATION OF INITIAL OPERATIONAL CAPABILITY OF IRIDIUM SAFETYCAST SERVICES.

NAVAREA 1

NAVAREA I 031/21

181540 UTC Mar 21

NOTIFICATION OF INITIAL OPERATIONAL CAPABILITY OF IRIDIUM SAFETYCAST SERVICES. 
NAVAREA I AND METAREA I CO-ORDINATORS ARE COMMENCING INITIAL OPERATIONAL CAPABILITY (IOC) PHASE FOR IRIDIUM SAFETYCAST NAVIGATIONAL WARNINGS AND METEOROLOGICAL INFORMATION, EFFECTIVE 23 MARCH 2021. 
NAVAREA I AND METAREA I WILL PROMULGATE SAFETYCAST MESSAGES AS PART OF A NUMBERED SERIES DURING IOC IN ACCORDANCE WITH THE JOINT IMO/IHO/WMO MARITIME SAFETY INFORMATION MANUAL. 
MESSAGES MAY BE INTERMITTENT AND WILL ALSO BE SUPPLEMENTED BY TEST MESSAGES WHICH WILL BE CLEARLY DEFINED IN THE MESSAGE HEADER. 
MARINERS ARE ADVISED THAT IOC WILL BE IN PLACE FOR NAVAREA I AND METAREA I UNTIL FURTHER NOTICE. 
SEE UK ADMIRALTY NOTICES TO MARINERS SECTION VI FOR FURTHER INFORMATION. CONTACT INFORMATION FOR NAVAREA I IS; PHONE: +44 (0)1823 353448, FAX: +44 (0)1823 322352, EMAIL: NAVWARNINGS@UKHO.GOV.UK. 
​

​

Ref Date Time Group Description
WZ 1118/21 200735 UTC Oct 21 GMDSS. MRCC Falmouth. VHF R/T and DSC services from Trevose Head site, off air.

UK Coastal

WZ 1118/21

200735 UTC Oct 21

​GMDSS. MRCC Falmouth.
VHF R/T and DSC services from Trevose Head site, 50-32.9N 005-02.0W, off air.
WZ 1116/21 191525 UTC Oct 21 ENGLISH CHANNEL, Strait of Dover. Folkestone. Folkstone Breakwater lighthouse, unlit

UK Coastal

WZ 1116/21

191525 UTC Oct 21

ENGLISH CHANNEL, Strait of Dover.
Folkestone.
Folkstone Breakwater lighthouse, 51-04.6N 001-11.7E, unlit.
WZ 1112/21 190005 UTC Oct 21 ENGLISH CHANNEL. TSS in the Strait of Dover. Les Ridens Southwards. Dropped 50 metre wire.

UK Coastal

WZ 1112/21

190005 UTC Oct 21

​ENGLISH CHANNEL.
TSS in the Strait of Dover.
Les Ridens Southwards.
Dropped 50 metre wire reported between 50-41.7N 001-17.4E and 50-42.3N 001-17.9E.
WZ 1111/21 182320 UTC Oct 21 NORTH SEA, UK SECTOR. Barque Gas Field. Platform 48/13-PB, unlit and all navaids inoperative.

UK Coastal

WZ 1111/21

182320 UTC Oct 21

NORTH SEA, UK SECTOR.
Barque Gas Field.
1. Platform 48/13-PB, 53-36.8N 001-31.6E, unlit and all navaids inoperative.
2. Cancel WZ 1069.
WZ 1096/21 150900 UTC Oct 21 NORTH SEA, UK SECTOR. Moray Firth. Beatrice Oil Field. Platform 11/30-C, fog signal inoperative.

UK Coastal

WZ 1096/21

150900 UTC Oct 21

NORTH SEA, UK SECTOR.
Moray Firth.
Beatrice Oil Field.
1. Platform 11/30-C, 58-05.7N 003-09.1W, fog signal inoperative.
2. Cancel WZ 953.
WZ 1095/21 141345 UTC Oct 21 NORTH SEA, UK SECTOR. Galleon Gas Field. Platform 48/20-PN, unlit.

UK Coastal

WZ 1095/21

141345 UTC Oct 21

​NORTH SEA, UK SECTOR. Galleon Gas Field.
1. Platform 48/20-PN, 53-27.7N 001-55.0E, unlit.
2. Cancel WZ 951.
WZ 1094/21 140915 UTC Oct 21 ENGLAND, EAST COAST. Hornsea Offshore Windfarm. Turbine H27, fog signal inoperative.

UK Coastal

WZ 1094/21

140915 UTC Oct 21

​ENGLAND, EAST COAST.
Hornsea Offshore Windfarm.
Turbine H27, 53-54.6N 001-39.9E, fog signal inoperative.
WZ 1093/21 140420 UTC Oct 21 ENGLAND, EAST COAST. Approaches to the Wash. Race Bank Wind Farm. Fog signals inoperative at turbines.

UK Coastal

WZ 1093/21

140420 UTC Oct 21

ENGLAND, EAST COAST.
Approaches to the Wash.
Race Bank Wind Farm.
Fog signals are inoperative at turbines in the following positions,
53-14.9N 000-48.9E
53-15.7N 000-55.9E
53-17.8N 000-46.3E
53-20.1N 000-49.1E.
WZ 1089/21 121525 UTC Oct 21 NORTH SEA. Indefatigable Banks North-westwards. Tethys Gas Field. Tethys Platform unlit and all navaids inoperative.

UK Coastal

WZ 1089/21

121525 UTC Oct 21

​NORTH SEA.
Indefatigable Banks North-westwards.
Tethys Gas Field.
Tethys Platform, 53-39.0N 002-03.4E, unlit and all navaids inoperative.
WZ 1085/21 101000 UTC Oct 21 NORTH SEA, UK SECTOR. Off Botney Ground TSS. Shamrock platform unlit and all navaids inoperative.

UK Coastal

WZ 1085/21

101000 UTC Oct 21

NORTH SEA, UK SECTOR.
Off Botney Ground TSS.
1. Shamrock platform, 53-28.2N 002-55.2E, unlit and all navaids inoperative. 
2. Cancel WZ 940.
WZ 1067/21 070930 UTC Oct 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform 49/27-J unlit and all navaids inoperative.

UK Coastal

WZ 1067/21

070930 UTC Oct 21

​SOUTHERN NORTH SEA.
Leman Gas Field.
Platform 49/27-J, 53-02.0N 002-13.1E, unlit and all navaids inoperative.
WZ 1056/21 041220 UTC Oct 21 SOUTHERN NORTH SEA. Davy Gas Field. Davy Platform 49/30A, unlit and all aids to navigation inoperative.

UK Coastal

WZ 1056/21

041220 UTC Oct 21

​SOUTHERN NORTH SEA.
Davy Gas Field.
Davy Platform 49/30A, 53-00.3N 002-53.8E, unlit and all aids to navigation inoperative.
WZ 1048/21 291515 UTC Sep 21 NORTH SEA, UK SECTOR. Corvette Gas Field. Corvette Platform 49/24 fog signal inoperative.

UK Coastal

WZ 1048/21

291515 UTC Sep 21

NORTH SEA, UK SECTOR.
Corvette Gas Field.
Corvette Platform 49/24, 53-13.9N 002-37.2E, fog signal inoperative.
WZ 1020/21 221650 UTC Sep 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform 49/27-H, unlit and all navaids inoperative.

UK Coastal

WZ 1020/21

221650 UTC Sep 21

SOUTHERN NORTH SEA.
Leman Gas Field.
1. Platform 49/27-H, 53-00.3N 002-12.9E, unlit and all navaids inoperative.
2. Cancel WZ 1000.
WZ 993/21 151620 UTC Sep 21 SCOTLAND, EAST COAST. Neart na Gaoithe Offshore Wind Farm Northwards. Met Mast, AIS inoperative.

UK Coastal

WZ 993/21

151620 UTC Sep 21

​SCOTLAND, EAST COAST.
Neart na Gaoithe Offshore Wind Farm Northwards.
1. Met Mast, 56-26.4N 002-14.5W, AIS inoperative.
2. Cancel WZ 834.
​

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