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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: 220101 UTC June 21

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Ref Date Time Group Description
WZ 678/21 220035 UTC Jun 21 SCOTLAND, SHETLAND ISLANDS AND NORTHERN NORTH SEA. DGPS service from Sumburgh Head, off air.

UK Coastal

WZ 678/21

220035 UTC Jun 21

SCOTLAND, SHETLAND ISLANDS AND NORTHERN NORTH SEA. 
1. DGPS service from Sumburgh Head, 59-51.2N 001-16.5W, off air between 220900 and 221600 UTC Jun.
2. Cancel this message 221700 UTC Jun 21. 
WZ 677/21 212330 UTC Jun 21 ENGLAND EAST COAST. Dover Strait, Eastern Part. Inter Bank Buoy, Racon inoperative.

UK Coastal

WZ 677/21

212330 UTC Jun 21

ENGLAND EAST COAST. 
Dover Strait, Eastern Part. 
Inter Bank Buoy, 51-16.5N 001-52.2E, Racon inoperative. 
WZ 676/21 211455 UTC Jun 21 SCOTLAND, NORTH COAST. Pentland Firth. Stroma. Swilkie Point Light range temporarily reduced to 12 miles.

UK Coastal

WZ 676/21

211455 UTC Jun 21

​SCOTLAND, NORTH COAST.
Pentland Firth.
Stroma.
Swilkie Point Light 58-41.7N 003-07.0W, range temporarily reduced to 12 miles.
WZ 675/21 210910 UTC Jun 21 ENGLAND, EAST COAST. Flamborough Head South-eastwards. York Gas Field. Platform York unlit and all navaids inoperative.

UK Coastal

WZ 675/21

210910 UTC Jun 21

​ENGLAND, EAST COAST.
Flamborough Head South-eastwards.
York Gas Field.
Platform York, 53-53.1N 000-25.9E, unlit and all navaids inoperative.
NAVAREA I 109/21 210635 UTC Jun 21 NORTH SEA. Jutland Bank North-eastwards to Dogger Bank Westwards. Seismic survey in progress by R/V Akademik Lazarev.

NAVAREA 1

NAVAREA I 109/21

210635 UTC Jun 21

NORTH SEA.
Jutland Bank North-eastwards to Dogger Bank Westwards.
Chart GB 4140 (INT 140).
1. Seismic survey in progress by R/V Akademik Lazarev towing a 13000 metre long cable in vicinity of a line joining:
57-43N 008-57E, 56-57N 006-14E, 56-16N 005-02E, 56-06N 004-04E and 54-39N 000-03W.
Wide berth of 3 miles ahead and abeam and 8.5 miles astern requested.
Guard vessel Jan van Gent in attendance.
2. Cancel Navarea I 105/21.
NAVAREA 1 108/21 210500 UTC Jun 21 RIGLIST. Correct at 210500Z Jun 21.

NAVAREA 1

NAVAREA 1 108/21

210500 UTC Jun 21

NAVAREA I 108/21
1. RIGLIST. Correct at 210500 UTC Jun 21.

    Southern North Sea: 51N to 55N
    52-22.7N 003-23.9E   Maersk Resolute ACP P11-Unity
    53-05.8N 001-45.8E   Valaris 72 ACP Hewett Gas Field
    53-14.0N 003-14.5E   590021
    53-14.5N 002-23.3E   Valaris 92
    53-18.3N 001-23.1E   Noble Hans Deul
    53-26.6N 001-53.1E   Seafox 4 ACP Skiff Gas Field
    53-31.2N 003-59.6E   Prospector 1 ACP K9ab-A
    53-36.6N 000-43.4E   Haeva ACP Amethyst Gas Field
NEW 53-38.0N 000-55.9E  Seafox 2
    53-38.7N 000-36.2E   Erda ACP Amethyst Gas Field
    53-43.0N 002-51.3E   Maersk Resolve ACP Grove Gas Field
    54-02.5N 000-26.5E   Valaris 123
    54-03.0N 002-29.4E   Valaris Gorilla V ACP Ketch Gas Field

    North Sea: 55N to 60N, East of 5W
    55-28.5N 005-06.3E   Noble Sam Turner ACP Dan Oil Field
    56-19.5N 003-21.2E   Maersk Invincible ACP Valhall Oil Field
    56-43.5N 002-12.5E   Ensco 120 ACP Jasmine Gas Field
    56-50.9N 002-44.4E   Maersk Integrator
    56-56.0N 006-50.3E   Borgland Dolphin
    57-00.8N 001-50.5E   Maersk Highlander ACP Culzean Gas Field
    57-01.3N 001-48.0E   Safe Caledonia
    57-01.8N 001-57.1E   Safe Zephyrus ACP Shearwater Oil Field
    57-01.9N 001-57.3E   Valaris 122 ACP Shearwater Oil Field
    57-09.2N 001-40.4E   Valaris Gorilla VI
    57-10.1N 001-05.3E   Prospector 5
    57-21.0N 002-05.2E   Maersk Resilient
    57-28.9N 002-02.9E   Ocean Endeavor
    57-45.0N 001-04.8E   Ocean Patriot
    57-48.9N 004-32.0E   Maersk Inspirer ACP YME platform
    58-08.0N 001-55.8E   COSL Innovator
    58-19.3N 000-41.2E   Paul B Loyd Junior
    58-41.2N 002-12.2E   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
NEW 58-54.8N 001-21.4E   West Hercules
    59-19.4N 002-20.2E   Transocean Barents
        
    Norwegian Sea: 60N to 65N, East of 5W
    60-06.0N 003-34.4E   Deepsea Atlantic
    60-27.4N 002-41.6E   Askepott
    60-30.4N 002-00.9E   Maersk Intrepid ACP Martin Linge platform
    60-48.5N 003-33.4E   Transocean Equinox
    60-53.5N 003-40.2E   Transocean Endurance
    61-24.0N 004-03.9E   Deepsea Yantai
    61-29.7N 002-08.8E   Transocean Spitsbergen
    64-53.2N 007-04.1E   Transocean Norge

    South and West Coasts of the British Isles
    51-19.3N 008-05.5W   Stena Spey

NOTES:
A. Rigs are protected by a 500 metre safety zone.
B. Abbreviations: 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 102/21.
NAVAREA I 107/21 210035 UTC Jun 21 NORTH SEA. Dogger Bank Westwards. Seismic survey in progress by SRV Oceanic Vega.

NAVAREA 1

NAVAREA I 107/21

210035 UTC Jun 21

NORTH SEA.
Dogger Bank Westwards.
Chart GB 2182B (INT 1042).
1. Seismic survey in progress by SRV Oceanic Vega, towing 10 x 7200 metre long cables within area bounded by 55-25N 001-08W, 55-25N 003-00E, 54-48N 003-00E and 54-48N 001-08W.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested.
Guard vessels Ocean Fortune, Andrea, Kristenborg and Sorrento in attendance.
2. Cancel Navarea I 103/21.
WZ 674/21 200740 UTC Jun 21 NORTH SEA, UK SECTOR. Wenlock Gas Field. Wenlock Platform 49/12A, unlit and all navaids inoperative.

UK Coastal

WZ 674/21

200740 UTC Jun 21

NORTH SEA, UK SECTOR. 
Wenlock Gas Field. 
Wenlock Platform 49/12A, 53-35.3N 002-17.6E, unlit and all navaids inoperative.
WZ 672/21 191010 UTC Jun 21 SOUTHERN NORTH SEA. Leman Bank. Platform 49/27J, unlit and all navaids inoperative.

UK Coastal

WZ 672/21

191010 UTC Jun 21

SOUTHERN NORTH SEA.
Leman Bank. 
1. Platform 49/27J, 53-02.0N 002-13.2E, unlit and all navaids inoperative.
2. Cancel WZ 519.
WZ 671/21 181835 UTC Jun 21 ENGLAND, SOUTH COAST. Wreck of F/V Angelena reported.

UK Coastal

WZ 671/21

181835 UTC Jun 21

ENGLAND, SOUTH COAST.
Lyme Bay, Teignmouth eastwards.
Wreck of F/V Angelena reported in vicinity 50-32.6N 003-14.9W.
WZ 670/21 181230 UTC Jun 21 ENGLAND, EAST COAST. Hewett Gas Field. Platform 48/29-B, unlit.

UK Coastal

WZ 670/21

181230 UTC Jun 21

​ENGLAND, EAST COAST.
Hewett Gas Field.
Platform 48/29-B, 53-03.2N 001-41.1E, unlit.
NAVAREA I 106/21 181000 UTC Jun 21 NAVAREA I WARNINGS IN FORCE AT 181000 UTC JUN 21.

NAVAREA 1

NAVAREA I 106/21

181000 UTC Jun 21

NAVAREA I 106/21

1. NAVAREA I WARNINGS IN FORCE AT 181000 UTC JUN 21:

2021 SERIES: 015, 031, 078, 086, 091, 093, 096, 099, 100, 102, 103, 105 106.

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 (078/21 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@ukho.gov.uk.

2. Cancel NAVAREA I 098/21.
WZ 663/21 160840 UTC Jun 21 ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. 1. Ridens SE light-buoy, AIS off air.

UK Coastal

WZ 663/21

160840 UTC Jun 21

ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. 
1. Ridens SE light-buoy, 50-43.4N 001-19.0E, AIS off air.
2. Cancel WZ 507.
WZ 661/21 151900 UTC Jun 21 ENGLAND, EAST COAST. Approaches to The Would. Cromer Lighthouse, AIS unstable.

UK Coastal

WZ 661/21

151900 UTC Jun 21

​ENGLAND, EAST COAST.
Approaches to The Would.
Cromer Lighthouse, 52-55.5N 001-19.0E, AIS unstable.
WZ 657/21 150530 UTC Jun 21 SCOTLAND, WEST COAST. Kintyre, Skipness Bay South-eastwards. Submerged 4 tonne obstruction.

UK Coastal

WZ 657/21

150530 UTC Jun 21

​SCOTLAND, WEST COAST.
Kintyre, Skipness Bay South-eastwards.
1. Submerged 4 tonne obstruction in 55-45.0N  005-19.1W.
2. Cancel this message 242359 UTC Jun 21.
WZ 648/21 121700 UTC Jun 21 IRELAND, EAST COAST. Bray Bank and Kish bank. light Buoys established.

UK Coastal

WZ 648/21

121700 UTC Jun 21

IRELAND, EAST COAST.
Bray Bank and Kish bank.
Two light buoys established in 53-10.3N 005-55.6W and 53-17.7N 005-54.5W.
WZ 647/21 120935 UTC Jun 21 GMDSS. Shetland Coastguard MF DSC & R/T services from St Margarets Hope site, off air.

UK Coastal

WZ 647/21

120935 UTC Jun 21

GMDSS. 
Shetland Coastguard
MF DSC & R/T services from St Margarets Hope site, 58 49.3N 002 57.4W, off air. 
NAVAREA I 100/21 120400 UTC Jun 21 NORTH SEA, UK AND NORWEGIAN SECTORS. Shetland Islands North-eastwards. Seismic survey in progress by M/V SW Amundsen.

NAVAREA 1

NAVAREA I 100/21

120400 UTC Jun 21

NORTH SEA, UK AND NORWEGIAN SECTORS.
Shetland Islands North-eastwards.
Chart GB 2182D (INT 1040).
1. Seismic survey in progress by M/V SW Amundsen towing 12 x 8000 metre cables within area bounded by 62-02N 000-11E, 62-03N 001-20E, 61-55N 001-26E, 61-55N 004-11E, 60-39N 004-09E, 60-38N 000-37E, 61-34N 000-32E and 61-34N 000-14E.
M/V Sanco Scorpio and M/V Tess in attendance.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested.
2. Cancel Navarea I 054/21.
NAVAREA I 099/21 111910 UTC Jun 21 NORTH SEA. Balmoral Oil Field to TSS Off Farsund. Tow of the Balmoral FPV.

NAVAREA 1

NAVAREA I 099/21

111910 UTC Jun 21

​NORTH SEA.
Balmoral Oil Field to TSS Off Farsund.
Chart GB 2182C (INT 1041).
M/V Havila Venus and M/V Havila Jupiter towing Balmoral FPV in vicinity of line joining 58-14N 001-07E and 57-42N 006-34E.
Length of tow 1000 metres.
NAVAREA I 096/21 102020 UTC Jun 21 NORTH SEA. Forty Mile Ground Eastwards. Kraken Oil Field. Seismic survey in progress by M/V Ramform Vanguard.

NAVAREA 1

NAVAREA I 096/21

102020 UTC Jun 21

NORTH SEA.
Forty Mile Ground Eastwards.
Kraken Oil Field.
Chart GB 2182C (INT 1041).
1. Seismic survey in progress by M/V Ramform Vanguard towing 12 x 10500 metre long cables, ends marked with V-AIS and yellow buoys, within area bounded by 60-11N 001-15E, 59-56N 001-34E, 59-38N 001-13E and 59-53N 000-55E.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested. Guard vessel Thor Frigg in attendance.
2. Cancel Navarea I 090/21.
WZ 637/21 101110 UTC Jun 21 ENGLAND, EAST COAST. Bessemer Gas Field Platform, unlit and all navaids inoperative.

UK Coastal

WZ 637/21

101110 UTC Jun 21

​ENGLAND, EAST COAST.
Bessemer Gas Field.
Platform 49/23E, 53-11.9N 002-29.1E, unlit and all navaids inoperative.
WZ 635/21 101040 UTC Jun 21 ENGLAND, EAST COAST. Leman Gas Field Platform, unlit and all navaids inoperative.

UK Coastal

WZ 635/21

101040 UTC Jun 21

​ENGLAND, EAST COAST.
Leman Gas Field.
Platform Leman 49/27-EP, 53-03.7N 002-12.7E, unlit and all navaids inoperative.
WZ 634/21 100820 UTC Jun 21 NORTH SEA, UK SECTOR. Galleon Gas Field. Platform 48/20-PN unlit.

UK Coastal

WZ 634/21

100820 UTC Jun 21

NORTH SEA, UK SECTOR.
Galleon Gas Field.
1. Platform 48/20-PN, 53-27.7N 001-55.0E, unlit.
2. Cancel WZ 498.
WZ 632/21 100130 UTC Jun 21 ENGLAND, BRISTOL CHANNEL. Bridgwater Bay. West Hinkley light buoy and East Hinkley light buoy, temporarily removed.

UK Coastal

WZ 632/21

100130 UTC Jun 21

ENGLAND, BRISTOL CHANNEL.
Bridgwater Bay.
1. West Hinkley light buoy, 51-13.7N 003-10.8W, and East Hinkley light buoy, 51-13.5N 003-09.6W, temporarily removed.
2. Cancel WZ 487.
WZ 630/21 091510 UTC Jun 21 IRISH SEA, EASTERN PART. South Morecambe Gas Field. Platform DP3 110/8, decommissioned, unlit and all navaids inoperative.

UK Coastal

WZ 630/21

091510 UTC Jun 21

​IRISH SEA, EASTERN PART.
South Morecambe Gas Field.
Platform DP3 110/8, 53-49.0N 003-33.7W, decommissioned, unlit and all navaids inoperative.

WZ 628/21 090820 UTC Jun 21 ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. ZC2 light buoy unlit.

UK Coastal

WZ 628/21

090820 UTC Jun 21

ENGLISH CHANNEL, EASTERN PART.
Dover Strait TSS.
1. ZC2 light buoy, 50-53.5N 001-30.8E, unlit.
2. Cancel WZ 484.
WZ 618/21 071735 UTC Jun 21 GMDSS. Falmouth Coastguard. MF R/T services from Isles of Scilly site off air.

UK Coastal

WZ 618/21

071735 UTC Jun 21

GMDSS. 
Falmouth Coastguard.
MF R/T services from Isles of Scilly site, 49-55.7N 006-18.2W, off air.
NAVAREA I 093/21 071320 UTC Jun 21 ENGLAND, EAST COAST. Great Yarmouth North-eastwards. Middle Cross Sand. Buoyage moved.

NAVAREA 1

NAVAREA I 093/21

071320 UTC Jun 21

ENGLAND, EAST COAST.
Great Yarmouth North-eastwards. Middle Cross Sand. Chart GB 1504 (INT 1510).
1. Barley light-buoy moved Northwards 0.3 miles to 52-38.76N 001-52.90E.
2. E Cross Sand light-buoy moved Northwards 0.3 miles to 52-40.33N 001-53.70E.
NAVAREA I 091/21 062230 UTC Jun 21 NORTH SEA, NORWEGIAN SECTOR. Utvaer Westwards. Seismic survey in progress by M/V Ramform Sovereign.

NAVAREA 1

NAVAREA I 091/21

062230 UTC Jun 21

​NORTH SEA, NORWEGIAN SECTOR.
Utvaer Westwards.
Chart GB 1427 (INT 1401).
Seismic survey in progress by M/V Ramform Sovereign towing 10 x 4600 metre long cables within area bounded by 61-14.5N 003-15.0E, 61-03.5N 004-03.0E, 60-50.0N 003-49.5E and 61-01.0N 003-02.0E.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested.
Guard vessels Thor Modi and Sanco Chaser in attendance.
WZ 612/21 062140 UTC Jun 21 NORTH SEA, UK SECTOR. Off Botney Ground TSS. Shamrock platform unlit and all navaids inoperative.

UK Coastal

WZ 612/21

062140 UTC Jun 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 478.
WZ 600/21 031615 UTC Jun 21 NORTH SEA, UK SECTOR. Barque Gas Field. Platform 48/13-PB, lights unreliable.

UK Coastal

WZ 600/21

031615 UTC Jun 21

​NORTH SEA, UK SECTOR.
Barque Gas Field.
1. Platform 48/13-PB, 53-36.8N 001-31.6E, lights unreliable.
2. Cancel WZ 469.
WZ 595/21 020800 UTC Jun 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform H unlit and all navaids inoperative.

UK Coastal

WZ 595/21

020800 UTC Jun 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 464.
WZ 594/21 020515 UTC Jun 21 NORTH SEA, UK SECTOR. Indefatigable Gas Field. Platform 49/18-AP, AD, unlit and all navaids inoperative.

UK Coastal

WZ 594/21

020515 UTC Jun 21

​NORTH SEA, UK SECTOR. Indefatigable Gas Field.
1. Platform 49/18-AP, AD, 53-21.8N 002-34.1E, unlit and all navaids inoperative.
2. Cancel WZ 461.
NAVAREA I 086/21 011600 UTC Jun 21 SOUTHERN NORTH SEA. Inner Cromer Knoll. Blythe platform and 500 metre Safety Zone established.

NAVAREA 1

NAVAREA I 086/21

011600 UTC Jun 21

SOUTHERN NORTH SEA.
Inner Cromer Knoll.
Chart GB 105
Blythe platform and 500 metre Safety Zone established in 53-14.48N 001-26.77E.
WZ 585/21 300930 UTC May 21 IRISH SEA, EASTERN PART. South Morecambe Gas Field. Platform DP4 decommissioned, unlit and all navaids inoperative.

UK Coastal

WZ 585/21

300930 UTC May 21

​IRISH SEA, EASTERN PART.
South Morecambe Gas Field.
Platform DP4 110/3, 53-52.5N 003-33.7W, decommissioned, unlit and all navaids inoperative.
NAVAREA I 078/21 281650 UTC May 21 SOUTHERN NORTH SEA. Southwark platform and 500 metre Safety Zone established.

NAVAREA 1

NAVAREA I 078/21

281650 UTC May 21

SOUTHERN NORTH SEA.
Inner Bank.
Chart GB 1503.
Southwark platform and 500 metre Safety Zone established in 53-11.0N 002-05.8E.
WZ 566/21 241625 UTC May 21 ENGLAND, EAST COAST. Southwold Eastwards and Deep Water routes.

UK Coastal

WZ 566/21

241625 UTC May 21

​ENGLAND, East Coast.  Southwold Eastwards and Deep Water routes.
1. Survey operations in progress by S/V Fugro Frontier, Fugro Venturer and Fugro Searcher, towing survey equipment astern in an area bounded by 52-21.3N 001-44.4E, 52-30.4N 002-43.8E, 52-45.1N 002-44.4E, 52-46.3N 003-02.8E, 51-58.3N 002-16.2E and 52-08.4N 001-39.1E. Wide berth is requested.
2. Cancel WZ 416.
3. Cancel this message 120001 UTC Jul 21.
WZ 540/21 181530 UTC May 21 IRISH SEA, EASTERN PART. Millom Gas Field. Platform 113/26 unlit and all navaids inoperative.

UK Coastal

WZ 540/21

181530 UTC May 21

IRISH SEA, EASTERN PART. 
Millom Gas Field. 
1. Platform 113/26, 54-01.6N 003-51.7W, unlit and all navaids inoperative.
2. Cancel WZ 411.
WZ 532/21 130300 UTC May 21 SCOTLAND, EAST COAST. Aberdeen North-eastwards. Aberdeen Offshore Wind Farm. Fog signal inoperative.

UK Coastal

WZ 532/21

130300 UTC May 21

SCOTLAND, EAST COAST.
Aberdeen North-eastwards.
Aberdeen Offshore Wind Farm. 
1. Turbine in 57-13.0N 001-59.1W, fog signal inoperative.
2. Cancel WZ 366.
WZ 530/21 121645 UTC May 21 SCOTLAND, EAST COAST. Neart na Gaoithe Offshore Wind Farm Northwards. Met Mast, AIS inoperative.

UK Coastal

WZ 530/21

121645 UTC May 21

​SCOTLAND, EAST COAST.
Neart na Gaoithe Offshore Wind Farm Northwards.
Met Mast, 56-26.4N 002-14.5W, AIS inoperative.
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. 
NAVAREA I 015/21 021730 UTC Feb 21 ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Sunk Centre Light Vessel temporarily replaced by Safe Water pillar light-buoy.

NAVAREA 1

NAVAREA I 015/21

021730 UTC Feb 21

​ENGLAND, EAST COAST.
Thames Estuary.
Sunk Centre.
Sunk Centre Light Vessel, 51-50N 001-46E, temporarily replaced by Safe Water pillar light-buoy, Mo(A) 15s,  with radar beacon Racon (C) and AIS aid to navigation MMSI 992351034.
​

​​
Ref Date Time Group Description
NAVAREA I 109/21 210635 UTC Jun 21 NORTH SEA. Jutland Bank North-eastwards to Dogger Bank Westwards. Seismic survey in progress by R/V Akademik Lazarev.

NAVAREA 1

NAVAREA I 109/21

210635 UTC Jun 21

NORTH SEA.
Jutland Bank North-eastwards to Dogger Bank Westwards.
Chart GB 4140 (INT 140).
1. Seismic survey in progress by R/V Akademik Lazarev towing a 13000 metre long cable in vicinity of a line joining:
57-43N 008-57E, 56-57N 006-14E, 56-16N 005-02E, 56-06N 004-04E and 54-39N 000-03W.
Wide berth of 3 miles ahead and abeam and 8.5 miles astern requested.
Guard vessel Jan van Gent in attendance.
2. Cancel Navarea I 105/21.
NAVAREA 1 108/21 210500 UTC Jun 21 RIGLIST. Correct at 210500Z Jun 21.

NAVAREA 1

NAVAREA 1 108/21

210500 UTC Jun 21

NAVAREA I 108/21
1. RIGLIST. Correct at 210500 UTC Jun 21.

    Southern North Sea: 51N to 55N
    52-22.7N 003-23.9E   Maersk Resolute ACP P11-Unity
    53-05.8N 001-45.8E   Valaris 72 ACP Hewett Gas Field
    53-14.0N 003-14.5E   590021
    53-14.5N 002-23.3E   Valaris 92
    53-18.3N 001-23.1E   Noble Hans Deul
    53-26.6N 001-53.1E   Seafox 4 ACP Skiff Gas Field
    53-31.2N 003-59.6E   Prospector 1 ACP K9ab-A
    53-36.6N 000-43.4E   Haeva ACP Amethyst Gas Field
NEW 53-38.0N 000-55.9E  Seafox 2
    53-38.7N 000-36.2E   Erda ACP Amethyst Gas Field
    53-43.0N 002-51.3E   Maersk Resolve ACP Grove Gas Field
    54-02.5N 000-26.5E   Valaris 123
    54-03.0N 002-29.4E   Valaris Gorilla V ACP Ketch Gas Field

    North Sea: 55N to 60N, East of 5W
    55-28.5N 005-06.3E   Noble Sam Turner ACP Dan Oil Field
    56-19.5N 003-21.2E   Maersk Invincible ACP Valhall Oil Field
    56-43.5N 002-12.5E   Ensco 120 ACP Jasmine Gas Field
    56-50.9N 002-44.4E   Maersk Integrator
    56-56.0N 006-50.3E   Borgland Dolphin
    57-00.8N 001-50.5E   Maersk Highlander ACP Culzean Gas Field
    57-01.3N 001-48.0E   Safe Caledonia
    57-01.8N 001-57.1E   Safe Zephyrus ACP Shearwater Oil Field
    57-01.9N 001-57.3E   Valaris 122 ACP Shearwater Oil Field
    57-09.2N 001-40.4E   Valaris Gorilla VI
    57-10.1N 001-05.3E   Prospector 5
    57-21.0N 002-05.2E   Maersk Resilient
    57-28.9N 002-02.9E   Ocean Endeavor
    57-45.0N 001-04.8E   Ocean Patriot
    57-48.9N 004-32.0E   Maersk Inspirer ACP YME platform
    58-08.0N 001-55.8E   COSL Innovator
    58-19.3N 000-41.2E   Paul B Loyd Junior
    58-41.2N 002-12.2E   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
NEW 58-54.8N 001-21.4E   West Hercules
    59-19.4N 002-20.2E   Transocean Barents
        
    Norwegian Sea: 60N to 65N, East of 5W
    60-06.0N 003-34.4E   Deepsea Atlantic
    60-27.4N 002-41.6E   Askepott
    60-30.4N 002-00.9E   Maersk Intrepid ACP Martin Linge platform
    60-48.5N 003-33.4E   Transocean Equinox
    60-53.5N 003-40.2E   Transocean Endurance
    61-24.0N 004-03.9E   Deepsea Yantai
    61-29.7N 002-08.8E   Transocean Spitsbergen
    64-53.2N 007-04.1E   Transocean Norge

    South and West Coasts of the British Isles
    51-19.3N 008-05.5W   Stena Spey

NOTES:
A. Rigs are protected by a 500 metre safety zone.
B. Abbreviations: 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 102/21.
NAVAREA I 107/21 210035 UTC Jun 21 NORTH SEA. Dogger Bank Westwards. Seismic survey in progress by SRV Oceanic Vega.

NAVAREA 1

NAVAREA I 107/21

210035 UTC Jun 21

NORTH SEA.
Dogger Bank Westwards.
Chart GB 2182B (INT 1042).
1. Seismic survey in progress by SRV Oceanic Vega, towing 10 x 7200 metre long cables within area bounded by 55-25N 001-08W, 55-25N 003-00E, 54-48N 003-00E and 54-48N 001-08W.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested.
Guard vessels Ocean Fortune, Andrea, Kristenborg and Sorrento in attendance.
2. Cancel Navarea I 103/21.
NAVAREA I 106/21 181000 UTC Jun 21 NAVAREA I WARNINGS IN FORCE AT 181000 UTC JUN 21.

NAVAREA 1

NAVAREA I 106/21

181000 UTC Jun 21

NAVAREA I 106/21

1. NAVAREA I WARNINGS IN FORCE AT 181000 UTC JUN 21:

2021 SERIES: 015, 031, 078, 086, 091, 093, 096, 099, 100, 102, 103, 105 106.

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 (078/21 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@ukho.gov.uk.

2. Cancel NAVAREA I 098/21.
NAVAREA I 100/21 120400 UTC Jun 21 NORTH SEA, UK AND NORWEGIAN SECTORS. Shetland Islands North-eastwards. Seismic survey in progress by M/V SW Amundsen.

NAVAREA 1

NAVAREA I 100/21

120400 UTC Jun 21

NORTH SEA, UK AND NORWEGIAN SECTORS.
Shetland Islands North-eastwards.
Chart GB 2182D (INT 1040).
1. Seismic survey in progress by M/V SW Amundsen towing 12 x 8000 metre cables within area bounded by 62-02N 000-11E, 62-03N 001-20E, 61-55N 001-26E, 61-55N 004-11E, 60-39N 004-09E, 60-38N 000-37E, 61-34N 000-32E and 61-34N 000-14E.
M/V Sanco Scorpio and M/V Tess in attendance.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested.
2. Cancel Navarea I 054/21.
NAVAREA I 099/21 111910 UTC Jun 21 NORTH SEA. Balmoral Oil Field to TSS Off Farsund. Tow of the Balmoral FPV.

NAVAREA 1

NAVAREA I 099/21

111910 UTC Jun 21

​NORTH SEA.
Balmoral Oil Field to TSS Off Farsund.
Chart GB 2182C (INT 1041).
M/V Havila Venus and M/V Havila Jupiter towing Balmoral FPV in vicinity of line joining 58-14N 001-07E and 57-42N 006-34E.
Length of tow 1000 metres.
NAVAREA I 096/21 102020 UTC Jun 21 NORTH SEA. Forty Mile Ground Eastwards. Kraken Oil Field. Seismic survey in progress by M/V Ramform Vanguard.

NAVAREA 1

NAVAREA I 096/21

102020 UTC Jun 21

NORTH SEA.
Forty Mile Ground Eastwards.
Kraken Oil Field.
Chart GB 2182C (INT 1041).
1. Seismic survey in progress by M/V Ramform Vanguard towing 12 x 10500 metre long cables, ends marked with V-AIS and yellow buoys, within area bounded by 60-11N 001-15E, 59-56N 001-34E, 59-38N 001-13E and 59-53N 000-55E.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested. Guard vessel Thor Frigg in attendance.
2. Cancel Navarea I 090/21.
NAVAREA I 093/21 071320 UTC Jun 21 ENGLAND, EAST COAST. Great Yarmouth North-eastwards. Middle Cross Sand. Buoyage moved.

NAVAREA 1

NAVAREA I 093/21

071320 UTC Jun 21

ENGLAND, EAST COAST.
Great Yarmouth North-eastwards. Middle Cross Sand. Chart GB 1504 (INT 1510).
1. Barley light-buoy moved Northwards 0.3 miles to 52-38.76N 001-52.90E.
2. E Cross Sand light-buoy moved Northwards 0.3 miles to 52-40.33N 001-53.70E.
NAVAREA I 091/21 062230 UTC Jun 21 NORTH SEA, NORWEGIAN SECTOR. Utvaer Westwards. Seismic survey in progress by M/V Ramform Sovereign.

NAVAREA 1

NAVAREA I 091/21

062230 UTC Jun 21

​NORTH SEA, NORWEGIAN SECTOR.
Utvaer Westwards.
Chart GB 1427 (INT 1401).
Seismic survey in progress by M/V Ramform Sovereign towing 10 x 4600 metre long cables within area bounded by 61-14.5N 003-15.0E, 61-03.5N 004-03.0E, 60-50.0N 003-49.5E and 61-01.0N 003-02.0E.
Wide berth of 3 miles ahead and abeam and 7 miles astern requested.
Guard vessels Thor Modi and Sanco Chaser in attendance.
NAVAREA I 086/21 011600 UTC Jun 21 SOUTHERN NORTH SEA. Inner Cromer Knoll. Blythe platform and 500 metre Safety Zone established.

NAVAREA 1

NAVAREA I 086/21

011600 UTC Jun 21

SOUTHERN NORTH SEA.
Inner Cromer Knoll.
Chart GB 105
Blythe platform and 500 metre Safety Zone established in 53-14.48N 001-26.77E.
NAVAREA I 078/21 281650 UTC May 21 SOUTHERN NORTH SEA. Southwark platform and 500 metre Safety Zone established.

NAVAREA 1

NAVAREA I 078/21

281650 UTC May 21

SOUTHERN NORTH SEA.
Inner Bank.
Chart GB 1503.
Southwark platform and 500 metre Safety Zone established in 53-11.0N 002-05.8E.
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. 
NAVAREA I 015/21 021730 UTC Feb 21 ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Sunk Centre Light Vessel temporarily replaced by Safe Water pillar light-buoy.

NAVAREA 1

NAVAREA I 015/21

021730 UTC Feb 21

​ENGLAND, EAST COAST.
Thames Estuary.
Sunk Centre.
Sunk Centre Light Vessel, 51-50N 001-46E, temporarily replaced by Safe Water pillar light-buoy, Mo(A) 15s,  with radar beacon Racon (C) and AIS aid to navigation MMSI 992351034.
​

​

Ref Date Time Group Description
WZ 678/21 220035 UTC Jun 21 SCOTLAND, SHETLAND ISLANDS AND NORTHERN NORTH SEA. DGPS service from Sumburgh Head, off air.

UK Coastal

WZ 678/21

220035 UTC Jun 21

SCOTLAND, SHETLAND ISLANDS AND NORTHERN NORTH SEA. 
1. DGPS service from Sumburgh Head, 59-51.2N 001-16.5W, off air between 220900 and 221600 UTC Jun.
2. Cancel this message 221700 UTC Jun 21. 
WZ 677/21 212330 UTC Jun 21 ENGLAND EAST COAST. Dover Strait, Eastern Part. Inter Bank Buoy, Racon inoperative.

UK Coastal

WZ 677/21

212330 UTC Jun 21

ENGLAND EAST COAST. 
Dover Strait, Eastern Part. 
Inter Bank Buoy, 51-16.5N 001-52.2E, Racon inoperative. 
WZ 676/21 211455 UTC Jun 21 SCOTLAND, NORTH COAST. Pentland Firth. Stroma. Swilkie Point Light range temporarily reduced to 12 miles.

UK Coastal

WZ 676/21

211455 UTC Jun 21

​SCOTLAND, NORTH COAST.
Pentland Firth.
Stroma.
Swilkie Point Light 58-41.7N 003-07.0W, range temporarily reduced to 12 miles.
WZ 675/21 210910 UTC Jun 21 ENGLAND, EAST COAST. Flamborough Head South-eastwards. York Gas Field. Platform York unlit and all navaids inoperative.

UK Coastal

WZ 675/21

210910 UTC Jun 21

​ENGLAND, EAST COAST.
Flamborough Head South-eastwards.
York Gas Field.
Platform York, 53-53.1N 000-25.9E, unlit and all navaids inoperative.
WZ 674/21 200740 UTC Jun 21 NORTH SEA, UK SECTOR. Wenlock Gas Field. Wenlock Platform 49/12A, unlit and all navaids inoperative.

UK Coastal

WZ 674/21

200740 UTC Jun 21

NORTH SEA, UK SECTOR. 
Wenlock Gas Field. 
Wenlock Platform 49/12A, 53-35.3N 002-17.6E, unlit and all navaids inoperative.
WZ 672/21 191010 UTC Jun 21 SOUTHERN NORTH SEA. Leman Bank. Platform 49/27J, unlit and all navaids inoperative.

UK Coastal

WZ 672/21

191010 UTC Jun 21

SOUTHERN NORTH SEA.
Leman Bank. 
1. Platform 49/27J, 53-02.0N 002-13.2E, unlit and all navaids inoperative.
2. Cancel WZ 519.
WZ 671/21 181835 UTC Jun 21 ENGLAND, SOUTH COAST. Wreck of F/V Angelena reported.

UK Coastal

WZ 671/21

181835 UTC Jun 21

ENGLAND, SOUTH COAST.
Lyme Bay, Teignmouth eastwards.
Wreck of F/V Angelena reported in vicinity 50-32.6N 003-14.9W.
WZ 670/21 181230 UTC Jun 21 ENGLAND, EAST COAST. Hewett Gas Field. Platform 48/29-B, unlit.

UK Coastal

WZ 670/21

181230 UTC Jun 21

​ENGLAND, EAST COAST.
Hewett Gas Field.
Platform 48/29-B, 53-03.2N 001-41.1E, unlit.
WZ 663/21 160840 UTC Jun 21 ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. 1. Ridens SE light-buoy, AIS off air.

UK Coastal

WZ 663/21

160840 UTC Jun 21

ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. 
1. Ridens SE light-buoy, 50-43.4N 001-19.0E, AIS off air.
2. Cancel WZ 507.
WZ 661/21 151900 UTC Jun 21 ENGLAND, EAST COAST. Approaches to The Would. Cromer Lighthouse, AIS unstable.

UK Coastal

WZ 661/21

151900 UTC Jun 21

​ENGLAND, EAST COAST.
Approaches to The Would.
Cromer Lighthouse, 52-55.5N 001-19.0E, AIS unstable.
WZ 657/21 150530 UTC Jun 21 SCOTLAND, WEST COAST. Kintyre, Skipness Bay South-eastwards. Submerged 4 tonne obstruction.

UK Coastal

WZ 657/21

150530 UTC Jun 21

​SCOTLAND, WEST COAST.
Kintyre, Skipness Bay South-eastwards.
1. Submerged 4 tonne obstruction in 55-45.0N  005-19.1W.
2. Cancel this message 242359 UTC Jun 21.
WZ 648/21 121700 UTC Jun 21 IRELAND, EAST COAST. Bray Bank and Kish bank. light Buoys established.

UK Coastal

WZ 648/21

121700 UTC Jun 21

IRELAND, EAST COAST.
Bray Bank and Kish bank.
Two light buoys established in 53-10.3N 005-55.6W and 53-17.7N 005-54.5W.
WZ 647/21 120935 UTC Jun 21 GMDSS. Shetland Coastguard MF DSC & R/T services from St Margarets Hope site, off air.

UK Coastal

WZ 647/21

120935 UTC Jun 21

GMDSS. 
Shetland Coastguard
MF DSC & R/T services from St Margarets Hope site, 58 49.3N 002 57.4W, off air. 
WZ 637/21 101110 UTC Jun 21 ENGLAND, EAST COAST. Bessemer Gas Field Platform, unlit and all navaids inoperative.

UK Coastal

WZ 637/21

101110 UTC Jun 21

​ENGLAND, EAST COAST.
Bessemer Gas Field.
Platform 49/23E, 53-11.9N 002-29.1E, unlit and all navaids inoperative.
WZ 635/21 101040 UTC Jun 21 ENGLAND, EAST COAST. Leman Gas Field Platform, unlit and all navaids inoperative.

UK Coastal

WZ 635/21

101040 UTC Jun 21

​ENGLAND, EAST COAST.
Leman Gas Field.
Platform Leman 49/27-EP, 53-03.7N 002-12.7E, unlit and all navaids inoperative.
WZ 634/21 100820 UTC Jun 21 NORTH SEA, UK SECTOR. Galleon Gas Field. Platform 48/20-PN unlit.

UK Coastal

WZ 634/21

100820 UTC Jun 21

NORTH SEA, UK SECTOR.
Galleon Gas Field.
1. Platform 48/20-PN, 53-27.7N 001-55.0E, unlit.
2. Cancel WZ 498.
WZ 632/21 100130 UTC Jun 21 ENGLAND, BRISTOL CHANNEL. Bridgwater Bay. West Hinkley light buoy and East Hinkley light buoy, temporarily removed.

UK Coastal

WZ 632/21

100130 UTC Jun 21

ENGLAND, BRISTOL CHANNEL.
Bridgwater Bay.
1. West Hinkley light buoy, 51-13.7N 003-10.8W, and East Hinkley light buoy, 51-13.5N 003-09.6W, temporarily removed.
2. Cancel WZ 487.
WZ 630/21 091510 UTC Jun 21 IRISH SEA, EASTERN PART. South Morecambe Gas Field. Platform DP3 110/8, decommissioned, unlit and all navaids inoperative.

UK Coastal

WZ 630/21

091510 UTC Jun 21

​IRISH SEA, EASTERN PART.
South Morecambe Gas Field.
Platform DP3 110/8, 53-49.0N 003-33.7W, decommissioned, unlit and all navaids inoperative.

WZ 628/21 090820 UTC Jun 21 ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. ZC2 light buoy unlit.

UK Coastal

WZ 628/21

090820 UTC Jun 21

ENGLISH CHANNEL, EASTERN PART.
Dover Strait TSS.
1. ZC2 light buoy, 50-53.5N 001-30.8E, unlit.
2. Cancel WZ 484.
WZ 618/21 071735 UTC Jun 21 GMDSS. Falmouth Coastguard. MF R/T services from Isles of Scilly site off air.

UK Coastal

WZ 618/21

071735 UTC Jun 21

GMDSS. 
Falmouth Coastguard.
MF R/T services from Isles of Scilly site, 49-55.7N 006-18.2W, off air.
WZ 612/21 062140 UTC Jun 21 NORTH SEA, UK SECTOR. Off Botney Ground TSS. Shamrock platform unlit and all navaids inoperative.

UK Coastal

WZ 612/21

062140 UTC Jun 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 478.
WZ 600/21 031615 UTC Jun 21 NORTH SEA, UK SECTOR. Barque Gas Field. Platform 48/13-PB, lights unreliable.

UK Coastal

WZ 600/21

031615 UTC Jun 21

​NORTH SEA, UK SECTOR.
Barque Gas Field.
1. Platform 48/13-PB, 53-36.8N 001-31.6E, lights unreliable.
2. Cancel WZ 469.
WZ 595/21 020800 UTC Jun 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform H unlit and all navaids inoperative.

UK Coastal

WZ 595/21

020800 UTC Jun 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 464.
WZ 594/21 020515 UTC Jun 21 NORTH SEA, UK SECTOR. Indefatigable Gas Field. Platform 49/18-AP, AD, unlit and all navaids inoperative.

UK Coastal

WZ 594/21

020515 UTC Jun 21

​NORTH SEA, UK SECTOR. Indefatigable Gas Field.
1. Platform 49/18-AP, AD, 53-21.8N 002-34.1E, unlit and all navaids inoperative.
2. Cancel WZ 461.
WZ 585/21 300930 UTC May 21 IRISH SEA, EASTERN PART. South Morecambe Gas Field. Platform DP4 decommissioned, unlit and all navaids inoperative.

UK Coastal

WZ 585/21

300930 UTC May 21

​IRISH SEA, EASTERN PART.
South Morecambe Gas Field.
Platform DP4 110/3, 53-52.5N 003-33.7W, decommissioned, unlit and all navaids inoperative.
WZ 566/21 241625 UTC May 21 ENGLAND, EAST COAST. Southwold Eastwards and Deep Water routes.

UK Coastal

WZ 566/21

241625 UTC May 21

​ENGLAND, East Coast.  Southwold Eastwards and Deep Water routes.
1. Survey operations in progress by S/V Fugro Frontier, Fugro Venturer and Fugro Searcher, towing survey equipment astern in an area bounded by 52-21.3N 001-44.4E, 52-30.4N 002-43.8E, 52-45.1N 002-44.4E, 52-46.3N 003-02.8E, 51-58.3N 002-16.2E and 52-08.4N 001-39.1E. Wide berth is requested.
2. Cancel WZ 416.
3. Cancel this message 120001 UTC Jul 21.
WZ 540/21 181530 UTC May 21 IRISH SEA, EASTERN PART. Millom Gas Field. Platform 113/26 unlit and all navaids inoperative.

UK Coastal

WZ 540/21

181530 UTC May 21

IRISH SEA, EASTERN PART. 
Millom Gas Field. 
1. Platform 113/26, 54-01.6N 003-51.7W, unlit and all navaids inoperative.
2. Cancel WZ 411.
WZ 532/21 130300 UTC May 21 SCOTLAND, EAST COAST. Aberdeen North-eastwards. Aberdeen Offshore Wind Farm. Fog signal inoperative.

UK Coastal

WZ 532/21

130300 UTC May 21

SCOTLAND, EAST COAST.
Aberdeen North-eastwards.
Aberdeen Offshore Wind Farm. 
1. Turbine in 57-13.0N 001-59.1W, fog signal inoperative.
2. Cancel WZ 366.
WZ 530/21 121645 UTC May 21 SCOTLAND, EAST COAST. Neart na Gaoithe Offshore Wind Farm Northwards. Met Mast, AIS inoperative.

UK Coastal

WZ 530/21

121645 UTC May 21

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

The provision of navigational warnings on this website is not intended to be a substitute for, or an alternative to, the International Enhanced Group Call (EGC) Services or the International NAVTEX service, and does not relieve Masters/Captains of their responsibility to monitor MSI broadcasts in accordance with the provisions of SOLAS.

Many warnings are of a temporary nature, but others may remain in force for several weeks and may be superseded by Notices to Mariners.

The IHO WWNWS-SC web page allows direct access to all the NAVAREA Co-ordinators around the world who have made their NAVAREA warnings available on the web. You can visit the IHO WWNWS-SC web page here.

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