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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: 231547 UTC May 18

​​​​​​​​​​

Ref Date Time Group Description
WZ 601/18 231520 UTC May 18 OUTER HEBRIDES. Sound of Harris. Approaches to Leverburgh. Stumbles Rock Light-buoy, AIS inoperative.

UK Coastal

WZ 601/18

231520 UTC May 18

​OUTER HEBRIDES.
Sound of Harris.
Approaches to Leverburgh.
Stumbles Rock Light-buoy, 57-45.1N 007-01.8W, AIS inoperative.
NAVAREA I 058/18 221630 UTC May 18 GMDSS. Central Baltic Sea and Gulf of Finland. B1 character from Tallinn Navtex station changes 1 Jul.

NAVAREA 1

NAVAREA I 058/18

221630 UTC May 18

​GMDSS.
Central Baltic Sea and Gulf of Finland.  Tallinn Navtex station 59-28N 024-21E.
1.  B1 character changes from U (uniform) to F (foxtrot) at 010001 UTC Jul.  Transmission times change to associated time slots.
2. Cancel this message 021800 UTC Jul 18.
WZ 599/18 220930 UTC May 18 CHANNEL ISLANDS. Fog signal on Hanois Lighthouse inoperative.

UK Coastal

WZ 599/18

220930 UTC May 18

​CHANNEL ISLANDS.
Guernsey west coast.  Hanois Lighthouse 49-26.1N 002-42.1W.
Fog signal inoperative.
WZ 597/18 212340 UTC May 18 ENGLISH CHANNEL. DGPS service from Saint Catherines Point, off air 22 May.

UK Coastal

WZ 597/18

212340 UTC May 18

​ENGLISH CHANNEL.
1. DGPS service from Saint Catherines Point 50-35N 001-18W off air 22 May between 0800 and 1600 UTC. 
2. Cancel this message 221700 UTC May 18.
WZ 596/18 212335 UTC May 18 WALES, SOUTH COAST. Bristol Channel. DGPS service from Nash Point lighthouse, off air daily.

UK Coastal

WZ 596/18

212335 UTC May 18

​WALES, SOUTH COAST.
Bristol Channel.
1. DGPS service from Nash Point lighthouse 51-24.0N 003-33.1W, off air daily 22 to 25 May between 0800 and 1600 UTC.
2. Cancel this message 251700 UTC May 18.
NAVAREA I 056/18 210505 UTC May 18 RIGLIST. Correct at 210500 UTC MAY 18.

NAVAREA 1

NAVAREA I 056/18

210505 UTC May 18

1. RIGLIST. Correct at 210500 UTC MAY 18.

Southern North Sea: 51N to 55N
53-04.6N 002-11.1E Seafox 4 ACP Leman Gas Field
53-07.4N 002-25.5E Paragon C20051
53-08.4N 003-02.6E Ensco 72
53-14.0N 003-14.5E 590021
53-14.4N 004-05.0E Ensco 122 ACP L13-Fl-1
53-22.6N 002-06.7E Seajacks Leviathan ACP Vanguard Gas Field
NEW 53-28.4N 004-29.4E Prospector 1 ACP L11-B-PA
53-42.2N 001-09.0E Seafox 1 ACP West Sole Gas Field
53-50.5N 002-52.1E Paragon B391 ACP ST-1 Markham Gas Field
53-56.4N 002-44.8E Noble Hans Deul ACP Chiswick Gas Field
NEW 54-04.4N 000-54.9E Seafox 2 ACP Ravenspurn Gas Field
NEW 54-08.3N 004-22.8E Maersk Resolve
54-12.2N 002-27.1E Ensco 92 ACP Caister Gas Field
54-35.7N 000-26.0E Ensco 121 ACP Breagh Gas Field
54-36.0N 002-11.8E Ensco 101 ACP Cygnus Gas Field

North Sea: 55N to 60N, East of 5W
55 32.2N 005 01.9E Maersk Resilient ACP Halfdan Oil Field
55-43.3N 004-48.1E Maersk Guardian ACP Tyra Gas Field
55-48.2N 004-33.6E Noble Sam Turner ACP Valdemar Oil Field
56-22.6N 003-15.5E Maersk Innovator ACP Eldfisk Oil Field
56-43.5N 002-12.5E Ensco 120 ACP Jasmine Gas Field
56-46.4N 000-46.4E Ensco 100
56-58.0N 001-52.2E Rowan Gorilla 5 ACP Franklin Gas Field
57-08.6N 002-16.6E Ocean Patriot
57-11.7N 001-54.8E Maersk Highlander ACP u/c Pierce Oil Field Westward
57-17.4N 001-22.4E Paul B Loyd Jnr
57-17.8N 001-21.9E Stena Spey
57-51.0N 000-37.0W COSL Pioneer
58-01.7N 001-42.9E Rowan Gorilla 7
58-08.9N 003-01.2W Ensco 80 ACP Beatrice Oil Field
58-34.3N 001-41.8E Maersk Integrator ACP Gina Krog u/c
58-48.5N 002-16.1E COSL Innovator
58-50.6N 002-14.9E Rowan Viking ACP Edvard Grieg u/c
58 55.3N 002 11.9E Maersk Interceptor ACP Ivar Aasen
58-58.3N 002-17.6E Deepsea Bergen
59-35.2N 001-03.2E Safe Boreas ACP u/c Mariner Oil Field
59-35.4N 001-03.4E Noble Lloyd Noble ACP u/c Mariner Oil Field

Norwegian Sea: 60N to 65N, East of 5W
60-20.1N 004-02.3W Deepsea Aberdeen
60-30.3N 002-00.9E Maersk Intrepid
60-41.9N 002-55.9E Safe Scandinavia ACP Oseberg Oil Field
NEW 60-44.1N 002-29.4W Safe Caledonia ACP u/c Clair Ridge Oil Field
60-49.1N 004-09.2W West Hercules
60-49.9N 003-36.1E Songa Endurance
NEW 60-50.6N 003-37.4E COSL Promoter
60-52.0N 003-33.4E Songa Equinox
60-56.7N 001-33.8E Ocean Guardian
61-02.0N 001-07.8E Paragon MSS1
61-11.8N 000-43.7E Transocean Leader
61-19.4N 001-32.1E Transocean 712
61-26.1N 002-35.2E Deepsea Atlantic
South and West Coasts of the British Isles.
53-32.2N 003-34.8W Irish Sea Pioneer ACP Douglas Oil Field
53-53.5N 003-37.5W GMS Endurance ACP South Morecambe Gas Field

NOTES:
A. Rigs are protected by a 500 metre safety zone.
B. Abbreviations: ACP - Adjacent to Charted Platform; u/c - under construction.
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 052/18.
WZ 595/18 210045 UTC May 18 BRISTOL CHANNEL. Foreland Point northwards. Underwater operations in progress by C/S Pierre de Fermat.

UK Coastal

WZ 595/18

210045 UTC May 18

​BRISTOL CHANNEL.
Foreland Point northwards.
Underwater operations in progress by C/S Pierre de Fermat within 4 miles of 51-18.9N 003-46.5W.
1 mile berth requested.
​NAVAREA I 055/18 192325 UTC May 18 NORTH SEA, UK Sector. Forties and Nelson Oil Fields. Seismic survey in progress by SRV Polar Duchess.

NAVAREA 1

​NAVAREA I 055/18

192325 UTC May 18

NORTH SEA, UK Sector.
Forties and Nelson Oil Fields.
Chart GB 278.
Seismic survey in progress by SRV Polar Duchess towing 10 x 7000m cables in area bounded by: 57-55N 001-18E, 57-49N 001-31E, 57-42N 001-38E, 57-24N 001-00E and 57-36N 000-39E.
Wide berth 4.5 miles astern and 1 mile ahead and abeam requested.
Two guard vessels in attendance.

WZ 589/18 181415 UTC May 18 SOUTHERN NORTH SEA. Hornsea Offshore Wind Farm Project. Unexploded ordnance reported.

UK Coastal

WZ 589/18

181415 UTC May 18

SOUTHERN NORTH SEA.
Hornsea Offshore Wind Farm Project.
1. Unexploded ordnance reported in following positions: 53-53.05N 001-39.55E and 53-55.30N 002-08.10E.
2. Cancel WZ 461
WZ 588/18 181310 UTC May 18 ENGLAND EAST COAST. Dudgeon Wind Farm. Wind Turbine E6, unlit and fog horn inoperative.

UK Coastal

WZ 588/18

181310 UTC May 18

ENGLAND EAST COAST. 
Dudgeon Wind Farm. Wind Turbine E6, 53-18.83N 001-20.59E, unlit and fog horn inoperative.
NAVAREA I 054/18 181000 UTC May 18 NAVAREA I WARNINGS IN FORCE AT 181000 UTC MAY 18.

NAVAREA 1

NAVAREA I 054/18

181000 UTC May 18

​1. NAVAREA I WARNINGS IN FORCE AT 181000 UTC MAY 18:

2017 SERIES: 057, 101, 163.
2018 SERIES: 040, 046, 047, 048, 053, 054.

NOTES:
A. Texts of NAVAREA I Warnings issued each week are printed in weekly editions of the Admiralty Notices to Mariners bulletin(ANMB).
B. NAVAREA I Warnings less than 42 days old (040/18 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)btconnect.com

2. Cancel NAVAREA I 051/18.
WZ 585/18 171230 UTC May 18 ENGLAND, EAST COAST. Thames Estuary approach. AIS inoperative on North Shipwash light-buoy, .

UK Coastal

WZ 585/18

171230 UTC May 18

​ENGLAND, EAST COAST.
Thames Estuary approach.
1. AIS on North Shipwash light-buoy 52-01.7N 001-38.3E inoperative.
2. Cancel WZ 442.
WZ 564/18 101000 UTC May 18 ENGLAND EAST COAST. Outer Dowsing Shoal Northwards. Light-buoys temporarily removed.

UK Coastal

WZ 564/18

101000 UTC May 18

ENGLAND EAST COAST.
Outer Dowsing Shoal Northwards.
1. Light-buoys temporarily removed as follows:
A) South cardinal mark at 53-37.39N 000-56.16E.
B) East cardinal mark at 53-37.59N 000-56.62E.
2. Cancel WZ 416.
WZ 559/18 081630 UTC May 18 SOUTHERN NORTH SEA, UK SECTOR. Davy Gas Field. Platform 49/30A all navaids inoperative.

UK Coastal

WZ 559/18

081630 UTC May 18

​SOUTHERN NORTH SEA, UK SECTOR.
Davy Gas Field.
1. Platform 49/30A, 53-00.3N 002-53.8E, all navaids inoperative.
2. Cancel WZ 409.
WZ 558/18 081605 UTC May 18 ENGLAND, EAST COAST. Lowestoft south-eastwards. Unexploded seabed ordnance located.

UK Coastal

WZ 558/18

081605 UTC May 18

​ENGLAND, EAST COAST.
Lowestoft south-eastwards.
1. Unexploded seabed ordnance located in 52-10.9N 002-06.9E and 52-11.5N 002-12.9E.
2. Cancel WZ 408.
WZ 550/18 051515 UTC May 18 ENGLAND, SOUTH COAST. Sussex Bay. Exposed cable on seabed.

UK Coastal

WZ 550/18

051515 UTC May 18

ENGLAND,  SOUTH COAST.
Sussex Bay.  Rampion Windfarm northwards.
1. Exposed cable reported on seabed between 50-46.2N 000-18.8W, 50-45.2N 000-19.1W, 50-43.4N 000-18.5W and 50-42.2N 000-16.6W. Wide berth requested.
2. Cancel WZ 399.
NAVAREA I 047/18 020515 UTC May 18 NORTH SEA, NORWEGIAN SECTOR. Survey operations by fleet of four vessels.

NAVAREA 1

NAVAREA I 047/18

020515 UTC May 18

NORTH SEA, NORWEGIAN SECTOR.
Chart GB 294.
1. Survey operations in progress by vessels WG Cook, WG Tasman, Geco Emerald and Mainport Cedar within area bounded by:
60-09N 002-33E, 60-09N 002-58E, 60-18N 003-03E, 60-27N 003-03E, 60-35N 002-53E and 60-35N 002-33E.  Wide berth requested.
2. Cancel this message 010100 UTC Aug 18.
WZ 533/18 011340 UTC May 18 IRISH SEA, EASTERN PART. Solway Firth. Robin Rigg Windfarm. Special light buoy marking obstruction missing.

UK Coastal

WZ 533/18

011340 UTC May 18

​IRISH SEA, EASTERN PART.
Solway Firth. 
Robin Rigg Windfarm. 
1. Special light buoy, Fl.Y 5s marking obstruction at 54-46.3N 003-42.1W, missing.
2. Cancel WZ 370.
​NAVAREA I 046/18 010100 UTC May 18 NORTH SEA. UK SECTOR. Witch Ground. Seismic survey in progress by M/V Sanco Swift.

NAVAREA 1

​NAVAREA I 046/18

010100 UTC May 18

NORTH SEA. UK SECTOR.
Witch Ground.
GB Chart 2182C (INT 1041).
Seismic survey in progress by M/V Sanco Swift towing 12 x 9000 metre long cables in area bounded by 58-16N, 57-44N, 000-51E and 000-36E. A berth of 6 miles astern and 3 miles ahead and abeam requested.
WZ 523/18 281430 UTC Apr 18 DOVER STRAIT TSS. Deep Water Route. Unexploded ordnance reported.

UK Coastal

WZ 523/18

281430 UTC Apr 18

​DOVER STRAIT TSS.
Deep Water Route.  Inter Bank light-buoy north-eastward.
1. Unexploded ordnance reported 51-19.31N 001-56.12E.
2. Cancel WZ 355.
​WZ 514/18 252020 UTC Apr 18 DOVER STRAIT, EASTERN PART. At West Hinder TSS. Underwater operations in progress by M/V Havila Phoenix.

UK Coastal

​WZ 514/18

252020 UTC Apr 18

DOVER STRAIT, EASTERN PART.
At West Hinder TSS.
Underwater operations in progress by M/V Havila Phoenix in vicinity of laid cable under construction between 51-19.10N 002-13.30E, 51-18.80N 002-16.50E and 51-20.20N 002-22.50E.
Cable marked by guard boats.
WZ 502/18 231050 UTC Apr 18 ENGLAND, EAST COAST. Approaches to Woodbridge Haven. Unexploded seabed ordnance located.

UK Coastal

WZ 502/18

231050 UTC Apr 18

ENGLAND, EAST COAST.
Approaches to Woodbridge Haven.
1. Unexploded seabed ordnance located in 51-59.8N 001-26.0E, 51-59.6N 001-26.1E and 51-59.4N 001-26.2E.
2. Cancel WZ 469

WZ 500/18 221610 UTC Apr 18 ​GMDSS. Belfast coastguard. MF R/T and DSC service from Tiree site off air.

UK Coastal

WZ 500/18

221610 UTC Apr 18

GMDSS. Belfast coastguard.
1. MF R/T and DSC service from Tiree site, 56-30N 006-48W, off-air.
2. Cancel WZ 334.

WZ 495/18 201640 UTC Apr 18 SCOTLAND, EAST COAST. Moray Firth. Fog horn inoperative on Jacky oil platform.

UK Coastal

WZ 495/18

201640 UTC Apr 18

SCOTLAND, EAST COAST. 
Moray Firth.
1. Jacky platform, 58-11.0N 002-58.8W, fog horn inoperative.
2. Cancel WZ 322.

 
WZ 494/18 201620 UTC Apr 18 ENGLAND, EAST COAST. Planned East Anglia One Windfarm. Unexploded seabed ordnance located.

UK Coastal

WZ 494/18

201620 UTC Apr 18

ENGLAND, EAST COAST.
Planned East Anglia One Windfarm.
1. Unexploded seabed ordnance located within area bounded by 52-20.0N, 52-09.0N, 002-27.0E and 002-34.0E. ANM 301(P)/18 refers.
2. Cancel WZ 319.
WZ 493/18 201250 UTC Apr 18 WALES, NORTH WEST COAST. Trwyn Du lighthouse, fog signal inoperative.

UK Coastal

WZ 493/18

201250 UTC Apr 18

​WALES, NORTH WEST COAST. Anglesey.
Trwyn Du lighthouse, 53-18.8N 004-02.4W, fog signal inoperative.
NAVAREA I 040/18 181700 UTC Apr 18 PLANNED INMARSAT I-3 TO I-4 MIGRATION IN 2018.

NAVAREA 1

NAVAREA I 040/18

181700 UTC Apr 18

There Is A Date Change To The Planned Inmarsat I-3 To I-4 Migration In 2018. Migration Will Now Start In May 2018.


1. The International Maritime Organization (Imo), The International Hydrographic Organization (Iho), And The World Meteorological Organization (Wmo) Inform The Maritime Community Of The Planned Inmarsat I-3 To I-4 Satellite Migration In 2018, As Follows:
1. Atlantic Ocean Region West (Aorw) In May 2018.
2. Pacific Ocean Region (Por) In July 2018.
3. Atlantic Ocean Region East (Aore) In September 2018.
4. Indian Ocean Region (Ior) In October 2018.
For Further Details Of The Satellite Migration Plan And New Satellite Footprints Consult Inmarsat At Https://Www.Inmarsat.Com/I3-I4-Services-Migration.


2. Cancel Navarea I 024/18.
WZ 484/18 181345 UTC Apr 18 DOVER STRAIT. TSS in the Strait of Dover - and adjacent waters. East bound lane. Vergoyer Nord Ouest light buoy, missing.

UK Coastal

WZ 484/18

181345 UTC Apr 18

​DOVER STRAIT.
TSS in the Strait of Dover - and adjacent waters.
East bound lane.
Vergoyer Nord Ouest light buoy, 50-37.13N 001-17.87E, missing.
WZ 478/18 151115 UTC Apr 18 ENGLAND, WEST COAST. Approaches to Morecambe. Shell Flat. Met Masts permanently removed.

UK Coastal

WZ 478/18

151115 UTC Apr 18

​ENGLAND, WEST COAST.
Approaches to Morecambe.
Shell Flat.
Met Masts permanently removed in positions 53-52.4N 003-12.1W and 53-51.6N 003-17.7W.
WZ 473/18 140940 UTC Apr 18 DOVER STRAIT, EASTERN PART. Goodwin Sands to At West Hinder TSS. Exposed sections of submarine cable marked by guard boats.

UK Coastal

WZ 473/18

140940 UTC Apr 18

​DOVER STRAIT, EASTERN PART.
Goodwin Sands to At West Hinder TSS.
1. Exposed sections of under construction submarine cable exist between 51-18.55N 001-29.20E and 51-19.45N 002-11.55E. Cable marked by guard boats.
2. Cancel WZ 271.

WZ 471/18 131940 UTC Apr 18 ENGLAND, EAST COAST. Spurn Head eastwards. Exposed sections of submarine cable and underwater operations.

UK Coastal

WZ 471/18

131940 UTC Apr 18

​ENGLAND, EAST COAST. Spurn Head eastwards.
Exposed sections of submarine cable and underwater operations by cableship Connector and MV Lange Wapper in area bounded by 53-31.9N 000-02.2E, 53-47.5N 001-38.6E, 53-45.3N 001-40.2E and 53-25.5N 000-13.6E.
NAVAREA I 035/18 311105 UTC Mar 18 ENGLAND, EAST COAST. Perimeter buoyage of Race Bank Windfarm permanently discontinued.

NAVAREA 1

NAVAREA I 035/18

311105 UTC Mar 18

​ENGLAND, EAST COAST.
Approaches to The Wash.   Race Bank Wind Farm 53-16.5N 000-49.5E.
Chart GB 1190 (INT 1508).
Perimeter buoyage, two north cardinal light-buoys and five special light-buoys, permanently discontinued.
NAVAREA I 163/17 231355 UTC Oct 17 SOUTHWESTERN APPROACHES TO THE BRITISH ISLES. ODAS light-buoy K1 off station

NAVAREA 1

NAVAREA I 163/17

231355 UTC Oct 17

​SOUTHWESTERN APPROACHES TO THE BRITISH ISLES.
Chart GB 2 (INT 160).
ODAS light-buoy K1 reported off station in position 48-47.4N 012-24.2W.

NAVAREA I 101/17 201550 UTC Jul 17 SOUTHERN NORTH SEA, UK SECTOR. Horne Gas Field. Safety Zone established.

NAVAREA 1

NAVAREA I 101/17

201550 UTC Jul 17

SOUTHERN NORTH SEA, UK SECTOR.
Horne Gas Field.
Chart GB 1503 (Int 1509).
Safety Zone, radius 500 metres, established at 52-54.12N 002-35.55E.
​

​​
Ref Date Time Group Description
NAVAREA I 058/18 221630 UTC May 18 GMDSS. Central Baltic Sea and Gulf of Finland. B1 character from Tallinn Navtex station changes 1 Jul.

NAVAREA 1

NAVAREA I 058/18

221630 UTC May 18

​GMDSS.
Central Baltic Sea and Gulf of Finland.  Tallinn Navtex station 59-28N 024-21E.
1.  B1 character changes from U (uniform) to F (foxtrot) at 010001 UTC Jul.  Transmission times change to associated time slots.
2. Cancel this message 021800 UTC Jul 18.
NAVAREA I 056/18 210505 UTC May 18 RIGLIST. Correct at 210500 UTC MAY 18.

NAVAREA 1

NAVAREA I 056/18

210505 UTC May 18

1. RIGLIST. Correct at 210500 UTC MAY 18.

Southern North Sea: 51N to 55N
53-04.6N 002-11.1E Seafox 4 ACP Leman Gas Field
53-07.4N 002-25.5E Paragon C20051
53-08.4N 003-02.6E Ensco 72
53-14.0N 003-14.5E 590021
53-14.4N 004-05.0E Ensco 122 ACP L13-Fl-1
53-22.6N 002-06.7E Seajacks Leviathan ACP Vanguard Gas Field
NEW 53-28.4N 004-29.4E Prospector 1 ACP L11-B-PA
53-42.2N 001-09.0E Seafox 1 ACP West Sole Gas Field
53-50.5N 002-52.1E Paragon B391 ACP ST-1 Markham Gas Field
53-56.4N 002-44.8E Noble Hans Deul ACP Chiswick Gas Field
NEW 54-04.4N 000-54.9E Seafox 2 ACP Ravenspurn Gas Field
NEW 54-08.3N 004-22.8E Maersk Resolve
54-12.2N 002-27.1E Ensco 92 ACP Caister Gas Field
54-35.7N 000-26.0E Ensco 121 ACP Breagh Gas Field
54-36.0N 002-11.8E Ensco 101 ACP Cygnus Gas Field

North Sea: 55N to 60N, East of 5W
55 32.2N 005 01.9E Maersk Resilient ACP Halfdan Oil Field
55-43.3N 004-48.1E Maersk Guardian ACP Tyra Gas Field
55-48.2N 004-33.6E Noble Sam Turner ACP Valdemar Oil Field
56-22.6N 003-15.5E Maersk Innovator ACP Eldfisk Oil Field
56-43.5N 002-12.5E Ensco 120 ACP Jasmine Gas Field
56-46.4N 000-46.4E Ensco 100
56-58.0N 001-52.2E Rowan Gorilla 5 ACP Franklin Gas Field
57-08.6N 002-16.6E Ocean Patriot
57-11.7N 001-54.8E Maersk Highlander ACP u/c Pierce Oil Field Westward
57-17.4N 001-22.4E Paul B Loyd Jnr
57-17.8N 001-21.9E Stena Spey
57-51.0N 000-37.0W COSL Pioneer
58-01.7N 001-42.9E Rowan Gorilla 7
58-08.9N 003-01.2W Ensco 80 ACP Beatrice Oil Field
58-34.3N 001-41.8E Maersk Integrator ACP Gina Krog u/c
58-48.5N 002-16.1E COSL Innovator
58-50.6N 002-14.9E Rowan Viking ACP Edvard Grieg u/c
58 55.3N 002 11.9E Maersk Interceptor ACP Ivar Aasen
58-58.3N 002-17.6E Deepsea Bergen
59-35.2N 001-03.2E Safe Boreas ACP u/c Mariner Oil Field
59-35.4N 001-03.4E Noble Lloyd Noble ACP u/c Mariner Oil Field

Norwegian Sea: 60N to 65N, East of 5W
60-20.1N 004-02.3W Deepsea Aberdeen
60-30.3N 002-00.9E Maersk Intrepid
60-41.9N 002-55.9E Safe Scandinavia ACP Oseberg Oil Field
NEW 60-44.1N 002-29.4W Safe Caledonia ACP u/c Clair Ridge Oil Field
60-49.1N 004-09.2W West Hercules
60-49.9N 003-36.1E Songa Endurance
NEW 60-50.6N 003-37.4E COSL Promoter
60-52.0N 003-33.4E Songa Equinox
60-56.7N 001-33.8E Ocean Guardian
61-02.0N 001-07.8E Paragon MSS1
61-11.8N 000-43.7E Transocean Leader
61-19.4N 001-32.1E Transocean 712
61-26.1N 002-35.2E Deepsea Atlantic
South and West Coasts of the British Isles.
53-32.2N 003-34.8W Irish Sea Pioneer ACP Douglas Oil Field
53-53.5N 003-37.5W GMS Endurance ACP South Morecambe Gas Field

NOTES:
A. Rigs are protected by a 500 metre safety zone.
B. Abbreviations: ACP - Adjacent to Charted Platform; u/c - under construction.
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 052/18.
​NAVAREA I 055/18 192325 UTC May 18 NORTH SEA, UK Sector. Forties and Nelson Oil Fields. Seismic survey in progress by SRV Polar Duchess.

NAVAREA 1

​NAVAREA I 055/18

192325 UTC May 18

NORTH SEA, UK Sector.
Forties and Nelson Oil Fields.
Chart GB 278.
Seismic survey in progress by SRV Polar Duchess towing 10 x 7000m cables in area bounded by: 57-55N 001-18E, 57-49N 001-31E, 57-42N 001-38E, 57-24N 001-00E and 57-36N 000-39E.
Wide berth 4.5 miles astern and 1 mile ahead and abeam requested.
Two guard vessels in attendance.

NAVAREA I 054/18 181000 UTC May 18 NAVAREA I WARNINGS IN FORCE AT 181000 UTC MAY 18.

NAVAREA 1

NAVAREA I 054/18

181000 UTC May 18

​1. NAVAREA I WARNINGS IN FORCE AT 181000 UTC MAY 18:

2017 SERIES: 057, 101, 163.
2018 SERIES: 040, 046, 047, 048, 053, 054.

NOTES:
A. Texts of NAVAREA I Warnings issued each week are printed in weekly editions of the Admiralty Notices to Mariners bulletin(ANMB).
B. NAVAREA I Warnings less than 42 days old (040/18 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)btconnect.com

2. Cancel NAVAREA I 051/18.
NAVAREA I 047/18 020515 UTC May 18 NORTH SEA, NORWEGIAN SECTOR. Survey operations by fleet of four vessels.

NAVAREA 1

NAVAREA I 047/18

020515 UTC May 18

NORTH SEA, NORWEGIAN SECTOR.
Chart GB 294.
1. Survey operations in progress by vessels WG Cook, WG Tasman, Geco Emerald and Mainport Cedar within area bounded by:
60-09N 002-33E, 60-09N 002-58E, 60-18N 003-03E, 60-27N 003-03E, 60-35N 002-53E and 60-35N 002-33E.  Wide berth requested.
2. Cancel this message 010100 UTC Aug 18.
​NAVAREA I 046/18 010100 UTC May 18 NORTH SEA. UK SECTOR. Witch Ground. Seismic survey in progress by M/V Sanco Swift.

NAVAREA 1

​NAVAREA I 046/18

010100 UTC May 18

NORTH SEA. UK SECTOR.
Witch Ground.
GB Chart 2182C (INT 1041).
Seismic survey in progress by M/V Sanco Swift towing 12 x 9000 metre long cables in area bounded by 58-16N, 57-44N, 000-51E and 000-36E. A berth of 6 miles astern and 3 miles ahead and abeam requested.
NAVAREA I 040/18 181700 UTC Apr 18 PLANNED INMARSAT I-3 TO I-4 MIGRATION IN 2018.

NAVAREA 1

NAVAREA I 040/18

181700 UTC Apr 18

There Is A Date Change To The Planned Inmarsat I-3 To I-4 Migration In 2018. Migration Will Now Start In May 2018.


1. The International Maritime Organization (Imo), The International Hydrographic Organization (Iho), And The World Meteorological Organization (Wmo) Inform The Maritime Community Of The Planned Inmarsat I-3 To I-4 Satellite Migration In 2018, As Follows:
1. Atlantic Ocean Region West (Aorw) In May 2018.
2. Pacific Ocean Region (Por) In July 2018.
3. Atlantic Ocean Region East (Aore) In September 2018.
4. Indian Ocean Region (Ior) In October 2018.
For Further Details Of The Satellite Migration Plan And New Satellite Footprints Consult Inmarsat At Https://Www.Inmarsat.Com/I3-I4-Services-Migration.


2. Cancel Navarea I 024/18.
NAVAREA I 035/18 311105 UTC Mar 18 ENGLAND, EAST COAST. Perimeter buoyage of Race Bank Windfarm permanently discontinued.

NAVAREA 1

NAVAREA I 035/18

311105 UTC Mar 18

​ENGLAND, EAST COAST.
Approaches to The Wash.   Race Bank Wind Farm 53-16.5N 000-49.5E.
Chart GB 1190 (INT 1508).
Perimeter buoyage, two north cardinal light-buoys and five special light-buoys, permanently discontinued.
NAVAREA I 163/17 231355 UTC Oct 17 SOUTHWESTERN APPROACHES TO THE BRITISH ISLES. ODAS light-buoy K1 off station

NAVAREA 1

NAVAREA I 163/17

231355 UTC Oct 17

​SOUTHWESTERN APPROACHES TO THE BRITISH ISLES.
Chart GB 2 (INT 160).
ODAS light-buoy K1 reported off station in position 48-47.4N 012-24.2W.

NAVAREA I 101/17 201550 UTC Jul 17 SOUTHERN NORTH SEA, UK SECTOR. Horne Gas Field. Safety Zone established.

NAVAREA 1

NAVAREA I 101/17

201550 UTC Jul 17

SOUTHERN NORTH SEA, UK SECTOR.
Horne Gas Field.
Chart GB 1503 (Int 1509).
Safety Zone, radius 500 metres, established at 52-54.12N 002-35.55E.
​

​

Ref Date Time Group Description
WZ 601/18 231520 UTC May 18 OUTER HEBRIDES. Sound of Harris. Approaches to Leverburgh. Stumbles Rock Light-buoy, AIS inoperative.

UK Coastal

WZ 601/18

231520 UTC May 18

​OUTER HEBRIDES.
Sound of Harris.
Approaches to Leverburgh.
Stumbles Rock Light-buoy, 57-45.1N 007-01.8W, AIS inoperative.
WZ 599/18 220930 UTC May 18 CHANNEL ISLANDS. Fog signal on Hanois Lighthouse inoperative.

UK Coastal

WZ 599/18

220930 UTC May 18

​CHANNEL ISLANDS.
Guernsey west coast.  Hanois Lighthouse 49-26.1N 002-42.1W.
Fog signal inoperative.
WZ 597/18 212340 UTC May 18 ENGLISH CHANNEL. DGPS service from Saint Catherines Point, off air 22 May.

UK Coastal

WZ 597/18

212340 UTC May 18

​ENGLISH CHANNEL.
1. DGPS service from Saint Catherines Point 50-35N 001-18W off air 22 May between 0800 and 1600 UTC. 
2. Cancel this message 221700 UTC May 18.
WZ 596/18 212335 UTC May 18 WALES, SOUTH COAST. Bristol Channel. DGPS service from Nash Point lighthouse, off air daily.

UK Coastal

WZ 596/18

212335 UTC May 18

​WALES, SOUTH COAST.
Bristol Channel.
1. DGPS service from Nash Point lighthouse 51-24.0N 003-33.1W, off air daily 22 to 25 May between 0800 and 1600 UTC.
2. Cancel this message 251700 UTC May 18.
WZ 595/18 210045 UTC May 18 BRISTOL CHANNEL. Foreland Point northwards. Underwater operations in progress by C/S Pierre de Fermat.

UK Coastal

WZ 595/18

210045 UTC May 18

​BRISTOL CHANNEL.
Foreland Point northwards.
Underwater operations in progress by C/S Pierre de Fermat within 4 miles of 51-18.9N 003-46.5W.
1 mile berth requested.
WZ 589/18 181415 UTC May 18 SOUTHERN NORTH SEA. Hornsea Offshore Wind Farm Project. Unexploded ordnance reported.

UK Coastal

WZ 589/18

181415 UTC May 18

SOUTHERN NORTH SEA.
Hornsea Offshore Wind Farm Project.
1. Unexploded ordnance reported in following positions: 53-53.05N 001-39.55E and 53-55.30N 002-08.10E.
2. Cancel WZ 461
WZ 588/18 181310 UTC May 18 ENGLAND EAST COAST. Dudgeon Wind Farm. Wind Turbine E6, unlit and fog horn inoperative.

UK Coastal

WZ 588/18

181310 UTC May 18

ENGLAND EAST COAST. 
Dudgeon Wind Farm. Wind Turbine E6, 53-18.83N 001-20.59E, unlit and fog horn inoperative.
WZ 585/18 171230 UTC May 18 ENGLAND, EAST COAST. Thames Estuary approach. AIS inoperative on North Shipwash light-buoy, .

UK Coastal

WZ 585/18

171230 UTC May 18

​ENGLAND, EAST COAST.
Thames Estuary approach.
1. AIS on North Shipwash light-buoy 52-01.7N 001-38.3E inoperative.
2. Cancel WZ 442.
WZ 564/18 101000 UTC May 18 ENGLAND EAST COAST. Outer Dowsing Shoal Northwards. Light-buoys temporarily removed.

UK Coastal

WZ 564/18

101000 UTC May 18

ENGLAND EAST COAST.
Outer Dowsing Shoal Northwards.
1. Light-buoys temporarily removed as follows:
A) South cardinal mark at 53-37.39N 000-56.16E.
B) East cardinal mark at 53-37.59N 000-56.62E.
2. Cancel WZ 416.
WZ 559/18 081630 UTC May 18 SOUTHERN NORTH SEA, UK SECTOR. Davy Gas Field. Platform 49/30A all navaids inoperative.

UK Coastal

WZ 559/18

081630 UTC May 18

​SOUTHERN NORTH SEA, UK SECTOR.
Davy Gas Field.
1. Platform 49/30A, 53-00.3N 002-53.8E, all navaids inoperative.
2. Cancel WZ 409.
WZ 558/18 081605 UTC May 18 ENGLAND, EAST COAST. Lowestoft south-eastwards. Unexploded seabed ordnance located.

UK Coastal

WZ 558/18

081605 UTC May 18

​ENGLAND, EAST COAST.
Lowestoft south-eastwards.
1. Unexploded seabed ordnance located in 52-10.9N 002-06.9E and 52-11.5N 002-12.9E.
2. Cancel WZ 408.
WZ 550/18 051515 UTC May 18 ENGLAND, SOUTH COAST. Sussex Bay. Exposed cable on seabed.

UK Coastal

WZ 550/18

051515 UTC May 18

ENGLAND,  SOUTH COAST.
Sussex Bay.  Rampion Windfarm northwards.
1. Exposed cable reported on seabed between 50-46.2N 000-18.8W, 50-45.2N 000-19.1W, 50-43.4N 000-18.5W and 50-42.2N 000-16.6W. Wide berth requested.
2. Cancel WZ 399.
WZ 533/18 011340 UTC May 18 IRISH SEA, EASTERN PART. Solway Firth. Robin Rigg Windfarm. Special light buoy marking obstruction missing.

UK Coastal

WZ 533/18

011340 UTC May 18

​IRISH SEA, EASTERN PART.
Solway Firth. 
Robin Rigg Windfarm. 
1. Special light buoy, Fl.Y 5s marking obstruction at 54-46.3N 003-42.1W, missing.
2. Cancel WZ 370.
WZ 523/18 281430 UTC Apr 18 DOVER STRAIT TSS. Deep Water Route. Unexploded ordnance reported.

UK Coastal

WZ 523/18

281430 UTC Apr 18

​DOVER STRAIT TSS.
Deep Water Route.  Inter Bank light-buoy north-eastward.
1. Unexploded ordnance reported 51-19.31N 001-56.12E.
2. Cancel WZ 355.
​WZ 514/18 252020 UTC Apr 18 DOVER STRAIT, EASTERN PART. At West Hinder TSS. Underwater operations in progress by M/V Havila Phoenix.

UK Coastal

​WZ 514/18

252020 UTC Apr 18

DOVER STRAIT, EASTERN PART.
At West Hinder TSS.
Underwater operations in progress by M/V Havila Phoenix in vicinity of laid cable under construction between 51-19.10N 002-13.30E, 51-18.80N 002-16.50E and 51-20.20N 002-22.50E.
Cable marked by guard boats.
WZ 502/18 231050 UTC Apr 18 ENGLAND, EAST COAST. Approaches to Woodbridge Haven. Unexploded seabed ordnance located.

UK Coastal

WZ 502/18

231050 UTC Apr 18

ENGLAND, EAST COAST.
Approaches to Woodbridge Haven.
1. Unexploded seabed ordnance located in 51-59.8N 001-26.0E, 51-59.6N 001-26.1E and 51-59.4N 001-26.2E.
2. Cancel WZ 469

WZ 500/18 221610 UTC Apr 18 ​GMDSS. Belfast coastguard. MF R/T and DSC service from Tiree site off air.

UK Coastal

WZ 500/18

221610 UTC Apr 18

GMDSS. Belfast coastguard.
1. MF R/T and DSC service from Tiree site, 56-30N 006-48W, off-air.
2. Cancel WZ 334.

WZ 495/18 201640 UTC Apr 18 SCOTLAND, EAST COAST. Moray Firth. Fog horn inoperative on Jacky oil platform.

UK Coastal

WZ 495/18

201640 UTC Apr 18

SCOTLAND, EAST COAST. 
Moray Firth.
1. Jacky platform, 58-11.0N 002-58.8W, fog horn inoperative.
2. Cancel WZ 322.

 
WZ 494/18 201620 UTC Apr 18 ENGLAND, EAST COAST. Planned East Anglia One Windfarm. Unexploded seabed ordnance located.

UK Coastal

WZ 494/18

201620 UTC Apr 18

ENGLAND, EAST COAST.
Planned East Anglia One Windfarm.
1. Unexploded seabed ordnance located within area bounded by 52-20.0N, 52-09.0N, 002-27.0E and 002-34.0E. ANM 301(P)/18 refers.
2. Cancel WZ 319.
WZ 493/18 201250 UTC Apr 18 WALES, NORTH WEST COAST. Trwyn Du lighthouse, fog signal inoperative.

UK Coastal

WZ 493/18

201250 UTC Apr 18

​WALES, NORTH WEST COAST. Anglesey.
Trwyn Du lighthouse, 53-18.8N 004-02.4W, fog signal inoperative.
WZ 484/18 181345 UTC Apr 18 DOVER STRAIT. TSS in the Strait of Dover - and adjacent waters. East bound lane. Vergoyer Nord Ouest light buoy, missing.

UK Coastal

WZ 484/18

181345 UTC Apr 18

​DOVER STRAIT.
TSS in the Strait of Dover - and adjacent waters.
East bound lane.
Vergoyer Nord Ouest light buoy, 50-37.13N 001-17.87E, missing.
WZ 478/18 151115 UTC Apr 18 ENGLAND, WEST COAST. Approaches to Morecambe. Shell Flat. Met Masts permanently removed.

UK Coastal

WZ 478/18

151115 UTC Apr 18

​ENGLAND, WEST COAST.
Approaches to Morecambe.
Shell Flat.
Met Masts permanently removed in positions 53-52.4N 003-12.1W and 53-51.6N 003-17.7W.
WZ 473/18 140940 UTC Apr 18 DOVER STRAIT, EASTERN PART. Goodwin Sands to At West Hinder TSS. Exposed sections of submarine cable marked by guard boats.

UK Coastal

WZ 473/18

140940 UTC Apr 18

​DOVER STRAIT, EASTERN PART.
Goodwin Sands to At West Hinder TSS.
1. Exposed sections of under construction submarine cable exist between 51-18.55N 001-29.20E and 51-19.45N 002-11.55E. Cable marked by guard boats.
2. Cancel WZ 271.

WZ 471/18 131940 UTC Apr 18 ENGLAND, EAST COAST. Spurn Head eastwards. Exposed sections of submarine cable and underwater operations.

UK Coastal

WZ 471/18

131940 UTC Apr 18

​ENGLAND, EAST COAST. Spurn Head eastwards.
Exposed sections of submarine cable and underwater operations by cableship Connector and MV Lange Wapper in area bounded by 53-31.9N 000-02.2E, 53-47.5N 001-38.6E, 53-45.3N 001-40.2E and 53-25.5N 000-13.6E.
​

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