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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.

Information

The following NAVAREA 1 and UK Coastal Warnings (WZs) were in force at: 090338 UTC July 20

​​​​​​​​​​

Ref Date Time Group Description
WZ 723/20 081620 UTC Jul 20 SCOTLAND, EAST COAST. Peterhead Southwards. Bay of Cruden. Port hand light-buoy, AIS inoperative.

UK Coastal

WZ 723/20

081620 UTC Jul 20

SCOTLAND, EAST COAST.
Peterhead Southwards.
Bay of Cruden.
Port hand light-buoy, 57-23.17N 001-50.33W, AIS inoperative.​

WZ 722/20 081240 UTC Jul 20 ENGLAND SOUTH WEST COAST. Scilly Isles. Old Wreck light buoy damaged and unlit.

UK Coastal

WZ 722/20

081240 UTC Jul 20

ENGLAND SOUTH WEST COAST.
Scilly Isles.
1. Old Wreck light buoy, 49-54.2N 006-22.8W damaged and unlit.
2. Cancel WZ 713.

WZ 718/20 062010 UTC Jul 20 GMDSS. Shetland Coastguard. VHF DSC service from Saxa Vord unstable.

UK Coastal

WZ 718/20

062010 UTC Jul 20

GMDSS. 
Shetland Coastguard. 
VHF DSC service from Saxa Vord site, 60-49.7N 000-50.4W, unstable.​

NAVAREA I 089/20 060500 UTC Jul 20 RIGLIST. Correct at 060500 UTC Jul 20.

NAVAREA 1

NAVAREA I 089/20

060500 UTC Jul 20

1. RIGLIST. Correct at 060500 UTC Jul 20.

         Southern North Sea: 51N to 55N
         51-43.6N 002-57.9E   Seafox 7 ACP Borssele Beta
         53-03.3N 001-41.2E   Valaris 72 ACP Hewett Gas Field
         53-14.0N 003-14.5E   590021
         53-19.1N 002-05.8E   Ensco 92 ACP South Valiant Gas Field
         53-32.5N 003-25.4E   Seafox 4 ACP Nam Field
         54-24.4N 002-48.9E   Maersk Resolve ACP D12-B
        
         North Sea: 55N to 60N, East of 5W
         55-43.4N 004-48.0E   Maersk Guardian ACP Tyra Gas Field
         56-15.0N 003-20.9E   Maersk Invincible ACP Valhall Oil Field
         56-16.8N 003-24.0E   Maersk Reacher ACP Valhall Oil Field
         56-43.5N 002-12.5E   Ensco 120 ACP Jasmine Gas Field
         56-48.4N 000-42.3E   Valaris Gorilla VI        
         56-58.0N 001-52.2E   Rowan Gorilla 5 ACP Franklin Gas Field
         57-01.9N 001-57.3E   Valaris 122 ACP Shearwater Oil Field
         57-06.6N 002-50.8E   Maersk Integrator ACP Ula Oil Field
         57-10.1N 002-15.5E   Ocean Endeavor        
         57-11.7N 001-54.8E   Maersk Highlander ACP Culzean Gas Field
         57-29.5N 002-18.0E   Rowan Viking
         57-50.7N 000-54.7W   COSL Pioneer  
         58-04.4N 000-26.2E   Wilphoenix        
         58-50.7N 001-44.6E   Rowan Stavanger ACP Gudrun Oil and Gas Field
         59-29.4N 001-33.5E   Ocean Patriot
         59-32.8N 002-01.1E   Deepsea Nordkapp
         59-35.4N 001-03.4E   Noble Lloyd Noble ACP Mariner Oil Field
NEW Scapa Flow                 Stena Don
        
         Norwegian Sea: 60N to 65N, East of 5W
         60-03.6N 003-59.5W   Transocean Leader
         60-20.2N 004-02.4W   Deepsea Aberdeen
         60-30.4N 002-00.9E   Maersk Intrepid
         60-49.9N 003-36.1E   Transocean Equinox
         60-54.6N 003-35.2E   COSL Promoter        
         60-56.2N 002-37.2E   West Hercules
         61-20.7N 002-04.2E   Deepsea Atlantic
         61-23.9N 002-03.9E   Transocean Norge
         61-32.1N 002-14.7E   Transocean Spitsbergen
         61-33.8N 002-02.6E   Deepsea Yantai
         64-01.8N 006-44.6E   West Phoenix
         64-56.8N 006-57.1E   West Mira 

         South and West Coasts of the British Isles.
         53-34.0N 003-27.3W   Irish Sea Pioneer ACP Hamilton Gas Field
         53-49.0N 003-33.6W   Borr Ran ACP South Morecambe Gas Field

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 Navarea I 086/20.

WZ 710/20 031015 UTC Jul 20 NORTH SEA, UK SECTOR. Thistle Oil Field. Platform 211/18-A unlit and all navaids inoperative.

UK Coastal

WZ 710/20

031015 UTC Jul 20

​NORTH SEA, UK SECTOR.
Thistle Oil Field.
1. Platform 211/18-A, 61-21.8N 001-34.8E,  unlit and all navaids inoperative.
2. Cancel WZ 704.

NAVAREA I 088/20 031000 UTC Jul 20 NAVAREA I WARNINGS IN FORCE AT 031000 UTC JUL 20

NAVAREA 1

NAVAREA I 088/20

031000 UTC Jul 20

1. NAVAREA I WARNINGS IN FORCE AT 031000 UTC JUL 20:
 
2020 SERIES: 053, 060, 069, 080, 085, 086, 088.
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 (069/20 onward) are promulgated via SafetyNET 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 084/20).

WZ 705/20 011345 UTC Jul 20 IRISH SEA, EASTERN PART. South Morecambe Gas Field.Platform DP4 110/3, fog horn inoperative

UK Coastal

WZ 705/20

011345 UTC Jul 20

IRISH SEA, EASTERN PART. South Morecambe Gas Field.
1. Platform DP4 110/3, 53-52.5N 003-33.7W, fog horn inoperative.
2. Cancel WZ 574.

WZ 702/20 301410 UTC Jun 20 ENGLAND, SOUTH-WEST COAST. Lizard Point Southwards. Derelict 6 metre vessel adrift.

UK Coastal

WZ 702/20

301410 UTC Jun 20

ENGLAND, SOUTH-WEST COAST. Lizard Point Southwards.
1. Derelict 6 metre vessel adrift in 49-37.9N 005-02.7W at 301344 UTC Jun. 
2. Cancel this message 031400Z Jul 20.​

NAVAREA I 085/20 262345 UTC Jun 20 NORTH SEA, UK SECTOR. Seismic survey m/v BGP Prospector. Wide berth requested.

NAVAREA 1

NAVAREA I 085/20

262345 UTC Jun 20

​NORTH SEA, UK SECTOR.
 Gannet and Triton Oilfields.
 Chart GB 2182B.
1. Seismic survey in progress by m/v BGP Prospector towing 12 x 5000 metre long cables within area bounded by 57-28N, 56-51N, 000-44E and 001-16E.
Wide berth of 3 miles ahead and abeam and 6 miles astern requested.  Two guard vessels in attendance.
2. Cancel this message 310100 UTC Jul 20.


WZ 683/20 261700 UTC Jun 20 ENGLAND, SOUTH COAST. Portsmouth South-eastwards. Obstruction, mast and rigging, reported.

UK Coastal

WZ 683/20

261700 UTC Jun 20

ENGLAND, SOUTH COAST.
Portsmouth South-eastwards.
Obstruction, mast and rigging, reported in vicinity of position 50-46.30N 001-04.04W.​

WZ 682/20 261540 UTC Jun 20 GMDSS. Belfast Coastguard. MF R/T service from Tiree site off air.

UK Coastal

WZ 682/20

261540 UTC Jun 20

GMDSS.
Belfast Coastguard.
1. MF R/T service from Tiree site, 56-30N 006-57W, off air.
2. Cancel WZ 563.​

WZ 679/20 252000 UTC Jun 20 ENGLAND, EAST COAST. Approaches to the Humber. New Light-buoys established.

UK Coastal

WZ 679/20

252000 UTC Jun 20

WZ 679
ENGLAND, EAST COAST. Approaches to the Humber.
Light-buoys established as follows:
(A)  North Cardinal, VQ, 53-38.3N 000-55.9E
(B)  West Cardinal, VQ(9) 10sec, 53-37.8N 000-55.6E
(C)  East Cardinal, VQ(3) 5sec, 53-37.9N 000-56.4E​

WZ 671/20 231700 UTC Jun 20 Walney and Walney Extension Windfarms. Aids to Navigation failures.

UK Coastal

WZ 671/20

231700 UTC Jun 20

IRISH SEA, EASTERN PART.
Walney and Walney Extension Windfarms.
1. Following perimeter buoyage unlit:
West cardinal buoy at 54-06.6N 003-55.3W,
South cardinal buoy at 54-03.4N 003-45.0W and
South cardinal buoy at 54-00.2N 003-34.7W.
2. Cancel WZ 653.​

WZ 665/20 220600 UTC Jun 20 NORTH SEA, UK SECTOR. Aids to navigation at the Ensign platform unreliable.

UK Coastal

WZ 665/20

220600 UTC Jun 20

NORTH SEA, UK SECTOR.
Ensign platform 53-35.4N 001-46.4E.
1.  All aids to navigation unreliable. 
2. Cancel WZ 540.


WZ 664/20 212020 UTC Jun 20 ENGLAND, EAST COAST. Hornsea Offshore Windfarm. Wind farm buoyage changes.

UK Coastal

WZ 664/20

212020 UTC Jun 20

ENGLAND, EAST COAST. Hornsea Offshore Windfarm.
1. Numerous cardinal and special light buoys established and discontinued within area bounded by 53-48.5N, 54-01.0N and 001-22.5E, 002-15.0E.
2. Cancel WZ 661 

WZ 660/20 201335 UTC Jun 20 SOUTHERN NORTH SEA, UK SECTOR. Leman Gas Field. Platform 49/26-BT fog signal inoperative.

UK Coastal

WZ 660/20

201335 UTC Jun 20

SOUTHERN NORTH SEA, UK SECTOR.
Leman Gas Field. 
1. Platform 49/26-BT, 53-04.9N 002-10.9E.
 Fog signal inoperative.
2. Cancel WZ 536.

WZ 658/20 191545 UTC Jun 20 SOUTHERN NORTH SEA. Between Deep Water Routes. Light on Mast unreliable.

UK Coastal

WZ 658/20

191545 UTC Jun 20

​SOUTHERN NORTH SEA.  Between Deep Water Routes. 
1. Mast, 53-10.7N 002-59.1E, light unreliable.
2. Cancel WZ 533.

WZ 655/20 182025 UTC Jun 20 WALES, WEST COAST. Cardigan Bay. Depths less than charted located.

UK Coastal

WZ 655/20

182025 UTC Jun 20

WALES, WEST COAST.
Cardigan Bay.
Depths less than charted located In Aberdaron Bay, Devil's Ridge eastwards,  The Devil's Tail eastwards and Muddy Hollow.
Most significant, in metres, as follows:
(A) 9.9 in 52-46.96N 004-42.05W
(B) 20.8 in 52-45.27N 004-37.80W
(C) 15.9 in 52-40.80N 004-34.87W
(D) 18.0 in 52-40.27N 004-31.29W
(E) 17.4 in 52-38.64N 004-35.09W
(F) 16.8 in 52-36.79N 004-36.01W
(G) 17.3 in 52-35.57N 004-33.77W
(H) 14.6 in 52-45.24N 004-27.82W.​

WZ 652/20 181500 UTC Jun 20 ENGLAND, NORTH-WEST COAST. Approaches to Morecambe Bay. Barrow Windfarm. Turbines unlit.

UK Coastal

WZ 652/20

181500 UTC Jun 20

ENGLAND, NORTH-WEST COAST.
Approaches to Morecambe Bay. 
Barrow Windfarm 53-59.5N 003-17.5W. 
1. Turbines A1 and  A7 unlit.
2. Cancel WZ 524.​

WZ 646/20 162000 UTC Jun 20 DOVER STRAIT TSS. North-east bound lane. ZC2 buoy, AIS inoperative.

UK Coastal

WZ 646/20

162000 UTC Jun 20

DOVER STRAIT TSS.
North-east bound lane.
Off Cap Gris Nez.
1. ZC2 buoy, 50-53.5N 001-30.9E, AIS inoperative.
2. Cancel WZ 520.​

WZ 643/20 150615 UTC Jun 20 CHANNEL ISLANDS. South Minquiers light-buoy, light unreliable.

UK Coastal

WZ 643/20

150615 UTC Jun 20

CHANNEL ISLANDS.
Plateau des Minquiers.
South Minquiers light-buoy, 48-53.1N 002-10.1W, light unreliable.​

WZ 635/20 111515 UTC Jun 20 ENGLAND, EAST COAST. Approaches to Lowestoft. Leading light sectors unreliable

UK Coastal

WZ 635/20

111515 UTC Jun 20

ENGLAND, EAST COAST. Approaches to Lowestoft.
1. Leading light sectors on the approaches to Lowestoft harbour, 52-27.7N 001-44.5E, unreliable.​
2. Cancel WZ 634.

WZ 633/20 111010 UTC Jun 20 SCOTLAND, EAST COAST. Montrose south-eastwards. Anchors and 1500 metres of cable reported.

UK Coastal

WZ 633/20

111010 UTC Jun 20

SCOTLAND, EAST COAST.
Montrose south-eastwards.
1. Anchors and 1500 metres of cable, marked by buoys, reported in positions 56-38.6N 002-20.2W and 56-38.0N 002-20.0W.
2. Cancel WZ 506.

WZ 619/20 081255 UTC Jun 20 GMDSS. Belfast Coastguard. VHF R/T service from Navar unstable.

UK Coastal

WZ 619/20

081255 UTC Jun 20

GMDSS.
Belfast Coastguard. 
1. VHF R/T services from Navar site, 54-27N 007-56W, unstable. 
2. Cancel WZ 497. 

WZ 618/20 081245 UTC Jun 20 OUTER HEBRIDES WESTWARD. Whale Rock light buoy, AIS unreliable.

UK Coastal

WZ 618/20

081245 UTC Jun 20

OUTER HEBRIDES WESTWARD.
Whale Rock.
Whale Rock light buoy, 57-54.4N 007-59.9W, AIS unreliable.​

WZ 609/20 031850 UTC Jun 20 NORTH SEA, UK SECTOR. Dogger Bank. Wreck of fishing vessel.

UK Coastal

WZ 609/20

031850 UTC Jun 20

NORTH SEA, UK SECTOR.
Dogger Bank.
 1. Wreck of fishing vessel located 55-04.21N 001-20.39E, least depth 23.0 metres.
 2. Cancel WZ 598.

WZ 593/20 281700 UTC May 20 ENGLAND, NORTH-WEST COAST. Liverpool Bay. Burbo Windfarms. Aids to Navigation failures.

UK Coastal

WZ 593/20

281700 UTC May 20

ENGLAND, NORTH-WEST COAST.
Liverpool Bay.  
Burbo Bank 53-30N 003-12W and Burbo Extension 53-29N 003-18W Windfarms.
1. Turbines A01, 53-30.1N 003-22.4W;  E05, F01, L05 and BB42 unlit.
2. Turbine BB38, fog signal inoperative.
3. Cancel WZ 526.


NAVAREA I 069/20 250830 UTC May 20 NORTH SEA, NORWEGIAN SECTOR. Underwater operations by cableship Ile de Batz. Wide berth requested.

NAVAREA 1

NAVAREA I 069/20

250830 UTC May 20

NORTH SEA, NORWEGIAN SECTOR.
Utsira Ground.
Chart GB 274.
Underwater operations in progress by cableship Ile de Batz within area bounded by
58-50N 002-29E, 58-52N 002-36E, 58-45N 002-51E and 58-40N 002-34E.
Wide berth requested.


NAVAREA I 060/20 050530 UTC May 20 NORWEGIAN SEA. Seismic survey by M/V Polarcus Adira

NAVAREA 1

NAVAREA I 060/20

050530 UTC May 20

NORWEGIAN SEA.
Chart GB 4101 (INT 101). 
Seismic survey in progress by M/V Polarcus Adira, towing 12 x 11000 metre long cables within an area bounded by:
64-45N 001-50E, 64-13N 004-50E, 63-25N 003-52E and 63-56N 000-50E.
Wide berth of 7 miles astern and 3 miles ahead and abeam is requested.


NAVAREA I 053/20 211640 UTC Apr 20 NORTH SEA, UK SECTOR. Safety Zone established

NAVAREA 1

NAVAREA I 053/20

211640 UTC Apr 20

NORTH SEA, UK SECTOR. 
Chart GB 278
Safety Zone, radius 500 metres established at 57-21.54N 000-49.98E​

​​
Ref Date Time Group Description
NAVAREA I 089/20 060500 UTC Jul 20 RIGLIST. Correct at 060500 UTC Jul 20.

NAVAREA 1

NAVAREA I 089/20

060500 UTC Jul 20

1. RIGLIST. Correct at 060500 UTC Jul 20.

         Southern North Sea: 51N to 55N
         51-43.6N 002-57.9E   Seafox 7 ACP Borssele Beta
         53-03.3N 001-41.2E   Valaris 72 ACP Hewett Gas Field
         53-14.0N 003-14.5E   590021
         53-19.1N 002-05.8E   Ensco 92 ACP South Valiant Gas Field
         53-32.5N 003-25.4E   Seafox 4 ACP Nam Field
         54-24.4N 002-48.9E   Maersk Resolve ACP D12-B
        
         North Sea: 55N to 60N, East of 5W
         55-43.4N 004-48.0E   Maersk Guardian ACP Tyra Gas Field
         56-15.0N 003-20.9E   Maersk Invincible ACP Valhall Oil Field
         56-16.8N 003-24.0E   Maersk Reacher ACP Valhall Oil Field
         56-43.5N 002-12.5E   Ensco 120 ACP Jasmine Gas Field
         56-48.4N 000-42.3E   Valaris Gorilla VI        
         56-58.0N 001-52.2E   Rowan Gorilla 5 ACP Franklin Gas Field
         57-01.9N 001-57.3E   Valaris 122 ACP Shearwater Oil Field
         57-06.6N 002-50.8E   Maersk Integrator ACP Ula Oil Field
         57-10.1N 002-15.5E   Ocean Endeavor        
         57-11.7N 001-54.8E   Maersk Highlander ACP Culzean Gas Field
         57-29.5N 002-18.0E   Rowan Viking
         57-50.7N 000-54.7W   COSL Pioneer  
         58-04.4N 000-26.2E   Wilphoenix        
         58-50.7N 001-44.6E   Rowan Stavanger ACP Gudrun Oil and Gas Field
         59-29.4N 001-33.5E   Ocean Patriot
         59-32.8N 002-01.1E   Deepsea Nordkapp
         59-35.4N 001-03.4E   Noble Lloyd Noble ACP Mariner Oil Field
NEW Scapa Flow                 Stena Don
        
         Norwegian Sea: 60N to 65N, East of 5W
         60-03.6N 003-59.5W   Transocean Leader
         60-20.2N 004-02.4W   Deepsea Aberdeen
         60-30.4N 002-00.9E   Maersk Intrepid
         60-49.9N 003-36.1E   Transocean Equinox
         60-54.6N 003-35.2E   COSL Promoter        
         60-56.2N 002-37.2E   West Hercules
         61-20.7N 002-04.2E   Deepsea Atlantic
         61-23.9N 002-03.9E   Transocean Norge
         61-32.1N 002-14.7E   Transocean Spitsbergen
         61-33.8N 002-02.6E   Deepsea Yantai
         64-01.8N 006-44.6E   West Phoenix
         64-56.8N 006-57.1E   West Mira 

         South and West Coasts of the British Isles.
         53-34.0N 003-27.3W   Irish Sea Pioneer ACP Hamilton Gas Field
         53-49.0N 003-33.6W   Borr Ran ACP South Morecambe Gas Field

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 Navarea I 086/20.

NAVAREA I 088/20 031000 UTC Jul 20 NAVAREA I WARNINGS IN FORCE AT 031000 UTC JUL 20

NAVAREA 1

NAVAREA I 088/20

031000 UTC Jul 20

1. NAVAREA I WARNINGS IN FORCE AT 031000 UTC JUL 20:
 
2020 SERIES: 053, 060, 069, 080, 085, 086, 088.
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 (069/20 onward) are promulgated via SafetyNET 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 084/20).

NAVAREA I 085/20 262345 UTC Jun 20 NORTH SEA, UK SECTOR. Seismic survey m/v BGP Prospector. Wide berth requested.

NAVAREA 1

NAVAREA I 085/20

262345 UTC Jun 20

​NORTH SEA, UK SECTOR.
 Gannet and Triton Oilfields.
 Chart GB 2182B.
1. Seismic survey in progress by m/v BGP Prospector towing 12 x 5000 metre long cables within area bounded by 57-28N, 56-51N, 000-44E and 001-16E.
Wide berth of 3 miles ahead and abeam and 6 miles astern requested.  Two guard vessels in attendance.
2. Cancel this message 310100 UTC Jul 20.


NAVAREA I 069/20 250830 UTC May 20 NORTH SEA, NORWEGIAN SECTOR. Underwater operations by cableship Ile de Batz. Wide berth requested.

NAVAREA 1

NAVAREA I 069/20

250830 UTC May 20

NORTH SEA, NORWEGIAN SECTOR.
Utsira Ground.
Chart GB 274.
Underwater operations in progress by cableship Ile de Batz within area bounded by
58-50N 002-29E, 58-52N 002-36E, 58-45N 002-51E and 58-40N 002-34E.
Wide berth requested.


NAVAREA I 060/20 050530 UTC May 20 NORWEGIAN SEA. Seismic survey by M/V Polarcus Adira

NAVAREA 1

NAVAREA I 060/20

050530 UTC May 20

NORWEGIAN SEA.
Chart GB 4101 (INT 101). 
Seismic survey in progress by M/V Polarcus Adira, towing 12 x 11000 metre long cables within an area bounded by:
64-45N 001-50E, 64-13N 004-50E, 63-25N 003-52E and 63-56N 000-50E.
Wide berth of 7 miles astern and 3 miles ahead and abeam is requested.


NAVAREA I 053/20 211640 UTC Apr 20 NORTH SEA, UK SECTOR. Safety Zone established

NAVAREA 1

NAVAREA I 053/20

211640 UTC Apr 20

NORTH SEA, UK SECTOR. 
Chart GB 278
Safety Zone, radius 500 metres established at 57-21.54N 000-49.98E​

Ref Date Time Group Description
WZ 723/20 081620 UTC Jul 20 SCOTLAND, EAST COAST. Peterhead Southwards. Bay of Cruden. Port hand light-buoy, AIS inoperative.

UK Coastal

WZ 723/20

081620 UTC Jul 20

SCOTLAND, EAST COAST.
Peterhead Southwards.
Bay of Cruden.
Port hand light-buoy, 57-23.17N 001-50.33W, AIS inoperative.​

WZ 722/20 081240 UTC Jul 20 ENGLAND SOUTH WEST COAST. Scilly Isles. Old Wreck light buoy damaged and unlit.

UK Coastal

WZ 722/20

081240 UTC Jul 20

ENGLAND SOUTH WEST COAST.
Scilly Isles.
1. Old Wreck light buoy, 49-54.2N 006-22.8W damaged and unlit.
2. Cancel WZ 713.

WZ 718/20 062010 UTC Jul 20 GMDSS. Shetland Coastguard. VHF DSC service from Saxa Vord unstable.

UK Coastal

WZ 718/20

062010 UTC Jul 20

GMDSS. 
Shetland Coastguard. 
VHF DSC service from Saxa Vord site, 60-49.7N 000-50.4W, unstable.​

WZ 710/20 031015 UTC Jul 20 NORTH SEA, UK SECTOR. Thistle Oil Field. Platform 211/18-A unlit and all navaids inoperative.

UK Coastal

WZ 710/20

031015 UTC Jul 20

​NORTH SEA, UK SECTOR.
Thistle Oil Field.
1. Platform 211/18-A, 61-21.8N 001-34.8E,  unlit and all navaids inoperative.
2. Cancel WZ 704.

WZ 705/20 011345 UTC Jul 20 IRISH SEA, EASTERN PART. South Morecambe Gas Field.Platform DP4 110/3, fog horn inoperative

UK Coastal

WZ 705/20

011345 UTC Jul 20

IRISH SEA, EASTERN PART. South Morecambe Gas Field.
1. Platform DP4 110/3, 53-52.5N 003-33.7W, fog horn inoperative.
2. Cancel WZ 574.

WZ 702/20 301410 UTC Jun 20 ENGLAND, SOUTH-WEST COAST. Lizard Point Southwards. Derelict 6 metre vessel adrift.

UK Coastal

WZ 702/20

301410 UTC Jun 20

ENGLAND, SOUTH-WEST COAST. Lizard Point Southwards.
1. Derelict 6 metre vessel adrift in 49-37.9N 005-02.7W at 301344 UTC Jun. 
2. Cancel this message 031400Z Jul 20.​

WZ 683/20 261700 UTC Jun 20 ENGLAND, SOUTH COAST. Portsmouth South-eastwards. Obstruction, mast and rigging, reported.

UK Coastal

WZ 683/20

261700 UTC Jun 20

ENGLAND, SOUTH COAST.
Portsmouth South-eastwards.
Obstruction, mast and rigging, reported in vicinity of position 50-46.30N 001-04.04W.​

WZ 682/20 261540 UTC Jun 20 GMDSS. Belfast Coastguard. MF R/T service from Tiree site off air.

UK Coastal

WZ 682/20

261540 UTC Jun 20

GMDSS.
Belfast Coastguard.
1. MF R/T service from Tiree site, 56-30N 006-57W, off air.
2. Cancel WZ 563.​

WZ 679/20 252000 UTC Jun 20 ENGLAND, EAST COAST. Approaches to the Humber. New Light-buoys established.

UK Coastal

WZ 679/20

252000 UTC Jun 20

WZ 679
ENGLAND, EAST COAST. Approaches to the Humber.
Light-buoys established as follows:
(A)  North Cardinal, VQ, 53-38.3N 000-55.9E
(B)  West Cardinal, VQ(9) 10sec, 53-37.8N 000-55.6E
(C)  East Cardinal, VQ(3) 5sec, 53-37.9N 000-56.4E​

WZ 671/20 231700 UTC Jun 20 Walney and Walney Extension Windfarms. Aids to Navigation failures.

UK Coastal

WZ 671/20

231700 UTC Jun 20

IRISH SEA, EASTERN PART.
Walney and Walney Extension Windfarms.
1. Following perimeter buoyage unlit:
West cardinal buoy at 54-06.6N 003-55.3W,
South cardinal buoy at 54-03.4N 003-45.0W and
South cardinal buoy at 54-00.2N 003-34.7W.
2. Cancel WZ 653.​

WZ 665/20 220600 UTC Jun 20 NORTH SEA, UK SECTOR. Aids to navigation at the Ensign platform unreliable.

UK Coastal

WZ 665/20

220600 UTC Jun 20

NORTH SEA, UK SECTOR.
Ensign platform 53-35.4N 001-46.4E.
1.  All aids to navigation unreliable. 
2. Cancel WZ 540.


WZ 664/20 212020 UTC Jun 20 ENGLAND, EAST COAST. Hornsea Offshore Windfarm. Wind farm buoyage changes.

UK Coastal

WZ 664/20

212020 UTC Jun 20

ENGLAND, EAST COAST. Hornsea Offshore Windfarm.
1. Numerous cardinal and special light buoys established and discontinued within area bounded by 53-48.5N, 54-01.0N and 001-22.5E, 002-15.0E.
2. Cancel WZ 661 

WZ 660/20 201335 UTC Jun 20 SOUTHERN NORTH SEA, UK SECTOR. Leman Gas Field. Platform 49/26-BT fog signal inoperative.

UK Coastal

WZ 660/20

201335 UTC Jun 20

SOUTHERN NORTH SEA, UK SECTOR.
Leman Gas Field. 
1. Platform 49/26-BT, 53-04.9N 002-10.9E.
 Fog signal inoperative.
2. Cancel WZ 536.

WZ 658/20 191545 UTC Jun 20 SOUTHERN NORTH SEA. Between Deep Water Routes. Light on Mast unreliable.

UK Coastal

WZ 658/20

191545 UTC Jun 20

​SOUTHERN NORTH SEA.  Between Deep Water Routes. 
1. Mast, 53-10.7N 002-59.1E, light unreliable.
2. Cancel WZ 533.

WZ 655/20 182025 UTC Jun 20 WALES, WEST COAST. Cardigan Bay. Depths less than charted located.

UK Coastal

WZ 655/20

182025 UTC Jun 20

WALES, WEST COAST.
Cardigan Bay.
Depths less than charted located In Aberdaron Bay, Devil's Ridge eastwards,  The Devil's Tail eastwards and Muddy Hollow.
Most significant, in metres, as follows:
(A) 9.9 in 52-46.96N 004-42.05W
(B) 20.8 in 52-45.27N 004-37.80W
(C) 15.9 in 52-40.80N 004-34.87W
(D) 18.0 in 52-40.27N 004-31.29W
(E) 17.4 in 52-38.64N 004-35.09W
(F) 16.8 in 52-36.79N 004-36.01W
(G) 17.3 in 52-35.57N 004-33.77W
(H) 14.6 in 52-45.24N 004-27.82W.​

WZ 652/20 181500 UTC Jun 20 ENGLAND, NORTH-WEST COAST. Approaches to Morecambe Bay. Barrow Windfarm. Turbines unlit.

UK Coastal

WZ 652/20

181500 UTC Jun 20

ENGLAND, NORTH-WEST COAST.
Approaches to Morecambe Bay. 
Barrow Windfarm 53-59.5N 003-17.5W. 
1. Turbines A1 and  A7 unlit.
2. Cancel WZ 524.​

WZ 646/20 162000 UTC Jun 20 DOVER STRAIT TSS. North-east bound lane. ZC2 buoy, AIS inoperative.

UK Coastal

WZ 646/20

162000 UTC Jun 20

DOVER STRAIT TSS.
North-east bound lane.
Off Cap Gris Nez.
1. ZC2 buoy, 50-53.5N 001-30.9E, AIS inoperative.
2. Cancel WZ 520.​

WZ 643/20 150615 UTC Jun 20 CHANNEL ISLANDS. South Minquiers light-buoy, light unreliable.

UK Coastal

WZ 643/20

150615 UTC Jun 20

CHANNEL ISLANDS.
Plateau des Minquiers.
South Minquiers light-buoy, 48-53.1N 002-10.1W, light unreliable.​

WZ 635/20 111515 UTC Jun 20 ENGLAND, EAST COAST. Approaches to Lowestoft. Leading light sectors unreliable

UK Coastal

WZ 635/20

111515 UTC Jun 20

ENGLAND, EAST COAST. Approaches to Lowestoft.
1. Leading light sectors on the approaches to Lowestoft harbour, 52-27.7N 001-44.5E, unreliable.​
2. Cancel WZ 634.

WZ 633/20 111010 UTC Jun 20 SCOTLAND, EAST COAST. Montrose south-eastwards. Anchors and 1500 metres of cable reported.

UK Coastal

WZ 633/20

111010 UTC Jun 20

SCOTLAND, EAST COAST.
Montrose south-eastwards.
1. Anchors and 1500 metres of cable, marked by buoys, reported in positions 56-38.6N 002-20.2W and 56-38.0N 002-20.0W.
2. Cancel WZ 506.

WZ 619/20 081255 UTC Jun 20 GMDSS. Belfast Coastguard. VHF R/T service from Navar unstable.

UK Coastal

WZ 619/20

081255 UTC Jun 20

GMDSS.
Belfast Coastguard. 
1. VHF R/T services from Navar site, 54-27N 007-56W, unstable. 
2. Cancel WZ 497. 

WZ 618/20 081245 UTC Jun 20 OUTER HEBRIDES WESTWARD. Whale Rock light buoy, AIS unreliable.

UK Coastal

WZ 618/20

081245 UTC Jun 20

OUTER HEBRIDES WESTWARD.
Whale Rock.
Whale Rock light buoy, 57-54.4N 007-59.9W, AIS unreliable.​

WZ 609/20 031850 UTC Jun 20 NORTH SEA, UK SECTOR. Dogger Bank. Wreck of fishing vessel.

UK Coastal

WZ 609/20

031850 UTC Jun 20

NORTH SEA, UK SECTOR.
Dogger Bank.
 1. Wreck of fishing vessel located 55-04.21N 001-20.39E, least depth 23.0 metres.
 2. Cancel WZ 598.

WZ 593/20 281700 UTC May 20 ENGLAND, NORTH-WEST COAST. Liverpool Bay. Burbo Windfarms. Aids to Navigation failures.

UK Coastal

WZ 593/20

281700 UTC May 20

ENGLAND, NORTH-WEST COAST.
Liverpool Bay.  
Burbo Bank 53-30N 003-12W and Burbo Extension 53-29N 003-18W Windfarms.
1. Turbines A01, 53-30.1N 003-22.4W;  E05, F01, L05 and BB42 unlit.
2. Turbine BB38, fog signal inoperative.
3. Cancel WZ 526.


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