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Radio Navigation Warnings - All warnings


All warnings

​​​​​​​​ NAVAREA 1

UK Coastal

​​​
Ref Date Time Group Description
WZ 993/21 151620 UTC Sep 21 SCOTLAND, EAST COAST. Neart na Gaoithe Offshore Wind Farm Northwards. Met Mast, AIS inoperative.

UK Coastal

WZ 993/21

151620 UTC Sep 21

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

WZ 992/21 151130 UTC Sep 21 ENGLISH CHANNEL. Brighton to Dieppe Westwards. Underwater cable operations in progress by C/S IT Intrepid.

UK Coastal

WZ 992/21

151130 UTC Sep 21

​ENGLISH CHANNEL.
Brighton to Dieppe Westwards.
Underwater cable operations in progress by C/S IT Intrepid in vicinity of line joining 50-49N 000-09W, 50-45N 000-10W, 50-40N 000-01W, 50-33N 000-03W, 50-26N 000-02E, 50-11N 000-04E, 50-09N 000-24E, 50-00N 000-46E and 49-54N 000-47E. Wide berth of 2 miles requested.

WZ 987/21 131555 UTC Sep 21 ​ENGLISH CHANNEL CENTRAL PART. Fishing gear reported abandoned.

UK Coastal

WZ 987/21

131555 UTC Sep 21

​ENGLISH CHANNEL CENTRAL PART.
Western approaches to TSS in the Strait of Dover.
Fishing gear reported abandoned in vicinity 50-11.7N 000-30.7W marked by white and red buoy.

NAVAREA I 172/21 130500 UTC Sep 21 RIGLIST. Correct at 130500 UTC Sep 21.

NAVAREA 1

NAVAREA I 172/21

130500 UTC Sep 21

​1. RIGLIST. Correct at 130500 UTC Sep 21.

         Southern North Sea: 51N to 55N
         52-22.7N 003-23.9E  Maersk Resolute ACP P11-Unity
         52-29.7N 004-12.8E  Prospector 1 ACP Q10-A
         52-36.7N 003-50.4E  Swift 10
         53-00.0N 001-50.8E  Valaris 72 ACP Hewett Gas Field
         53-11.9N 002-29.1E  Haeva ACP Bessemer Gas Field
         53-14.0N 003-14.5E  590021
         53-14.4N 001-26.7E  Noble Hans Deul ACP Blythe
         53-18.4N 003-56.9E  Seafox 4 ACP K15-FG-1
         53-27.8N 001-55.1E  Maersk Resilient ACP Galleon Gas Field
         53-33.7N 000-52.7E  Erda ACP Amethyst Gas Field
         53-38.0N 000-56.0E  Seafox 7 ACP RCS planned platform
         54-02.5N 000-26.5E  Valaris 123
         54-03.0N 002-29.4E  Valaris Gorilla V ACP Ketch Gas Field
         54-11.4N 002-12.7E  Valaris 92
         54-35.8N 000-26.0E  Maersk Resolve ACP Breagh Gas Field

         North Sea: 55N to 60N, East of 5W
         55-28.5N 005-06.3E  Noble Sam Turner ACP Dan Oil Field
         56-10.8N 003-27.9E  Maersk Invincible ACP Hod Oil Field
         56-15.0N 003-20.8E  Maersk Reacher ACP Valhall Oil Field
         56-32.7N 003-13.5E  West Linus
         56-35.0N 002-28.9E  Valaris 121
         56-36.7N 003-25.9E  Borgland Dolphin
         56-51.0N 002-15.3E  Valaris 120 ACP Jade Oil Field
         57-00.8N 001-50.5E  Maersk Highlander ACP Elgin Gas Field
         57-01.3N 000-50.2E  Stena Don
         57-01.3N 001-48.0E  Safe Caledonia
         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
         57-10.8N 000-55.4E  Ocean Endeavor
         57-48.9N 004-32.0E  Maersk Inspirer ACP YME platform
         57-49.9N 001-50.7E  Paul B Loyd Junior
         57-56.3N 001-04.2E  WilPhoenix
         58-08.0N 001-55.8E  COSL Innovator
         58-40.7N 002-12.1E  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
         58-55.3N 002-11.9E  Maersk Integrator
         59-14.2N 002-26.6E  West Phoenix
         59-22.7N 001-40.8E  Ocean Patriot
         59-29.8N 001-57.9E  Deepsea Nordkapp

         Norwegian Sea:  60N to 65N, East of 5W
         60-15.8N 002-46.5E  Askepott
         60-30.4N 002-00.9E  Maersk Intrepid ACP Martin Linge platform
         60-48.5N 003-33.4E  Transocean Equinox
         60-53.7N 003-39.3E  Transocean Endurance
         61-10.4N 003-26.4E  Deepsea Aberdeen
         61-16.3N 002-07.1E  Deepsea Atlantic
         61-29.7N 002-08.8E  Transocean Spitsbergen
         61-33.7N 002-02.1E  Deepsea Yantai
         64-53.2N 007-04.1E  Transocean Norge

         South and West Coasts of the British Isles
NEW 51-11.3N 008-23.4W  Stena Spey
         53-38.0N 003-10.6W  Irish Sea Pioneer ACP Lennox Oil and Gas Field

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

2. Cancel 169/21.

NAVAREA I 171/21 110415 UTC Sep 21 ENGLAND, EAST COAST. Thames Estuary. Sunk Centre. Sunk Centre Light Vessel permanently replaced by Safe Water pillar light-buoy.

NAVAREA 1

NAVAREA I 171/21

110415 UTC Sep 21

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

NAVAREA I 170/21 101000 UTC Sep 21 NAVAREA I WARNINGS IN FORCE AT 101000Z SEP 21.

NAVAREA 1

NAVAREA I 170/21

101000 UTC Sep 21

NAVAREA I 170/21
1. NAVAREA I WARNINGS IN FORCE AT 101000Z SEP 21:
2021 SERIES: 015, 031, 100, 107, 134, 138, 139, 160, 161, 166, 169, 170.

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 (160/21 onward) are promulgated via Enhanced Group Call (EGC) and/or relevant NAVTEX transmitters.
C. The complete texts of all in-force NAVAREA I warnings, including those which are no longer being broadcast, are reprinted in Section III of ANMB in weeks 1, 13, 26 and 39 and are also available from the UKHO website at: www.admiralty.co.uk/RNW.
Alternatively, these may be requested by e-mail from NAVAREA I Co-ordinator at: navwarnings(at)ukho.gov.uk

2. Cancel NAVAREA I 168/21.

WZ 976/21 091930 UTC Sep 21 ENGLAND, SOUTH COAST. Isle of Wight. Saint Catherine’s Point Lighthouse, light range permanently changed to 18 miles.

UK Coastal

WZ 976/21

091930 UTC Sep 21

​ENGLAND, SOUTH COAST.
Isle of Wight.
Saint Catherine’s Point Lighthouse, 50-34.5N 001-17.9W, light range permanently changed to 18 miles.

WZ 975/21 091220 UTC Sep 21 NORTH SEA, UK SECTOR. Goldeneye Gas Field. Platform Goldeneye 14/29a, decommissioned, unlit and all navaids inoperative.

UK Coastal

WZ 975/21

091220 UTC Sep 21

​NORTH SEA, UK SECTOR.
Goldeneye Gas Field.
Platform Goldeneye 14/29a, 58-00.1N 000-22.9W, decommissioned, unlit and all navaids inoperative.

WZ 972 /21 080630 UTC Sep 21 IRISH SEA, EASTERN PART. South Morecambe Gas Field. Platforms DP3 110/8, and DP4 110/3, Unlit and all navaids inoperative.

UK Coastal

WZ 972 /21

080630 UTC Sep 21

IRISH SEA, EASTERN PART.
South Morecambe Gas Field.
1. Platforms DP3 110/8, 53-49.0N 003-33.7W, and DP4 110/3, 53-52.5N 003-33.7W, decommissioned. Unlit and all navaids inoperative. Marked by cardinal light-buoys to north, south, west and east.
Cancel WZ 803.

WZ 969/21 080000 UTC Sep 21 ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. Ridens SE light-buoy, AIS off air.

UK Coastal

WZ 969/21

080000 UTC Sep 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 802.

WZ 967/21 071700 UTC Sep 21 NORTH SEA, UK SECTOR. Indefatigable Gas Field. Platform 49/18-BP,BD, unlit.

UK Coastal

WZ 967/21

071700 UTC Sep 21

​NORTH SEA, UK SECTOR.
Indefatigable Gas Field.
Platform 49/18-BP,BD, 53-23.5N 002-31.5E, unlit.

WZ 964/21 060530 UTC Sep 21 SCOTLAND, WEST COAST. Loch Ryan, North Channel and Luce Bay. Intermittent GPS Jamming Exercise.

UK Coastal

WZ 964/21

060530 UTC Sep 21

​SCOTLAND, WEST COAST. Loch Ryan, North Channel and Luce Bay.
1. Intermittent GPS Jamming Exercise in progress daily 0730 to 1500 UTC, 06 Sep to 04 Oct within 22 miles of 54-50.3N 004-55.8W.
2. Alternative means of navigation should be used during jamming periods to confirm position. GPS equipment should be checked for correct operation when clear of the affected areas or on completion of the exercise.
3. Jamming will not take place in reduced visibility.
4. In an emergency, jamming may be stopped on request via the MOD West Freugh Range Control on +44 1776 888932 or +44 1776 888930.
5. Cancel this message 041600 UTC Oct 21.

WZ 962/21 050935 UTC Sep 21 SOUTHERN NORTH SEA.Deep Water via DR1 light-buoy and Deep Water in Southern Approach to Off Brown Ridge TSS.Underwater cable operations M/V Sar Fame.

UK Coastal

WZ 962/21

050935 UTC Sep 21

​SOUTHERN NORTH SEA.
Deep Water via DR1 light-buoy and Deep Water in Southern Approach to Off Brown Ridge TSS.
Underwater cable operations progress by M/V Sar Fame in vicinity of a line joining 52-29.7N 002-14.6E and 52-29.4N 003-12.5E.

WZ 959/21 041325 UTC Sep 21 ENGLAND, EAST COAST. Great Yarmouth South-eastwards. South Corton Light-buoy and North East Holm Light-buoy, permanently moved.

UK Coastal

WZ 959/21

041325 UTC Sep 21

ENGLAND, EAST COAST.
Great Yarmouth South-eastwards.
1. South Corton Light-buoy permanently moved to 52-33.37N 001-48.14E.
2. North East Holm Light-buoy permanently moved to 52-33.16N 001-48.46E.

WZ 956/21 031315 UTC Sep 21 ENGLAND, WEST COAST. Barrow South-westwards. Barrow Wind Farm. Turbines D03 and D08 unlit.

UK Coastal

WZ 956/21

031315 UTC Sep 21

​ENGLAND, WEST COAST.
Barrow South-westwards.
Barrow Wind Farm.
Turbines D03, 53-58.8N 003-18.1W, and D08, 53-59.7N 003-19.7W, unlit.

WZ 953/21 030900 UTC Sep 21 NORTH SEA, UK SECTOR. Moray Firth. Beatrice Oil Field. Platform 11/30-C, fog signal inoperative.

UK Coastal

WZ 953/21

030900 UTC Sep 21

NORTH SEA, UK SECTOR.
Moray Firth.
Beatrice Oil Field.
1. Platform 11/30-C, 58-05.7N 003-09.1W, fog signal inoperative.
2. Cancel WZ 952.

WZ 951/21 021345 UTC Sep 21 NORTH SEA, UK SECTOR. Galleon Gas Field. Platform 48/20-PN unlit.

UK Coastal

WZ 951/21

021345 UTC Sep 21

NORTH SEA, UK SECTOR.
Galleon Gas Field.
1. Platform 48/20-PN, 53-27.7N 001-55.0E, unlit.
2. Cancel WZ 773.

WZ 947/21 010615 UTC Sep 21 ENGLISH CHANNEL, EASTERN PART. Dover Strait TSS. ZC2 light buoy unlit.

UK Coastal

WZ 947/21

010615 UTC Sep 21

ENGLISH CHANNEL, EASTERN PART.
Dover Strait TSS.
1. ZC2 light buoy, 50-53.5N 001-30.8E, unlit.
2. Cancel WZ 769.

WZ 945/21 311420 UTC Aug 21 SCOTLAND, WEST COAST. North Uist Westwards. Haskeir Island Lighthouse, AIS unreliable.

UK Coastal

WZ 945/21

311420 UTC Aug 21

​SCOTLAND, WEST COAST.
North Uist Westwards.
Haskeir Island Lighthouse, 57-42.0N 007-41.3W, AIS unreliable.

WZ 940/21 291340 UTC Aug 21 NORTH SEA, UK SECTOR. Off Botney Ground TSS. Shamrock platform unlit and all navaids inoperative.

UK Coastal

WZ 940/21

291340 UTC Aug 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 763.

NAVAREA 166/21 271545 UTC Aug 21 ENGLISH CHANNEL. Off Casquets TSS. Channel Light Vessel permanently changed to a Safe Water light-buoy.

NAVAREA 1

NAVAREA 166/21

271545 UTC Aug 21

​ENGLISH CHANNEL.
Off Casquets TSS.
Chart GB 2454 (INT 1702).
Channel Light Vessel, 49-54.5N 002-53.7W, permanently changed to a Safe Water light-buoy, LFL.10 Sec, Racon (O) and AIS, MMSI 992351028.

WZ 928/21 261410 UTC Aug 21 NORTH SEA, UK SECTOR. Barque Gas Field. Platform 48/13-PB, lights unreliable.

UK Coastal

WZ 928/21

261410 UTC Aug 21

​NORTH SEA, UK SECTOR.
Barque Gas Field.
1. Platform 48/13-PB, 53-36.8N 001-31.6E, lights unreliable.
2. Cancel WZ 756.

WZ 925/21 261205 UTC Aug 21 SCOTLAND, NORTH COAST. Fair Isle. Skadan Lighthouse, light temporarily reduced to 12 miles.

UK Coastal

WZ 925/21

261205 UTC Aug 21

​SCOTLAND, NORTH COAST.
Fair Isle.
Skadan Lighthouse, 59-30.8N 001-39.2W, light temporarily reduced to 12 miles.

WZ 921/21 260525 UTC Aug 21 ​IRISH SEA, EASTERN PART. Survey operations in progress by S/V Ocean Resolution.

UK Coastal

WZ 921/21

260525 UTC Aug 21

​IRISH SEA, EASTERN PART.
Isle of Man South-eastwards.
Survey operations in progress by S/V Ocean Resolution within area bounded by:
54-05.6N 004-05.6W,
54-05.8N 004-01.7W,
53-59.9N 003-47.2W,
53-56.5N 003-47.1W,
53-54.2N 003-58.3W,
53-39.9N 003-42.0W,
53-35.9N 003-41.3W,
53-35.8N 003-55.2W,
53-37.0N 004-03.3W,
53-47.1N 004-03.7W,
53-52.8N 004-02.1W and 54-00.5N 004-12.8W.
Wide berth of one mile requested.

NAVAREA I 161/21 251450 UTC Aug 21 WESTERN APPROACHES TO THE ENGLISH CHANNEL. North West Bank to Little Sole Bank. Underwater cable operations by C/S Ile de Brehat.

NAVAREA 1

NAVAREA I 161/21

251450 UTC Aug 21

​WESTERN APPROACHES TO THE ENGLISH CHANNEL.
North West Bank to Little Sole Bank.
Chart GB 2 (INT 160).
Underwater cable operations in progress by C/S Ile de Brehat in vicinity of line joining 50-18N 007-07W, 50-04N 007-38W, 48-58N 007-59W and 48-34N 008-43W.
Wide berth requested. 

WZ 913/21 251000 UTC Aug 21 ENGLAND, EAST COAST. Great Yarmouth Eastwards. Unexploded ordnance reported.

UK Coastal

WZ 913/21

251000 UTC Aug 21

​ENGLAND, EAST COAST.
Great Yarmouth Eastwards.
Unexploded ordnance reported in 52-34.2N 002-10.8E.

WZ 907/21 240645 UTC Aug 21 SOUTHERN NORTH SEA. Leman Gas Field. Platform H unlit and all navaids inoperative.

UK Coastal

WZ 907/21

240645 UTC Aug 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 751.

NAVAREA 1 160/21 240600 UTC Aug 21 NORTH SEA, NORWEGIAN SECTOR. The Patch westwards. Seismic survey in progress by R/V Ramform Hyperion.

NAVAREA 1

NAVAREA 1 160/21

240600 UTC Aug 21

​NAVAREA I 160/21
NORTH SEA, NORWEGIAN SECTOR.
The Patch westwards.
Chart GB 1427 (INT 1401).
Seismic survey in progress by R/V Ramform Hyperion towing 10 x 2800 metre long cables within an area bounded by 59-36.3N 002-25.3E, 59-26.3N 002-59.4E, 58-53.2N 002-22.4E, 58-53.2N 002-16.1E, 58-58.5N 001-56.5E, 59-01.4N 001-52.5E and 59-09.5N 001-56.1E.
Wide berth of 3 miles ahead, 2 miles abeam and 3 miles astern requested.
M/V Thor Omega and M/V Miranda in attendance.

WZ 889/21 171700 UTC Aug 21 SOUTHERN NORTH SEA. Davy Gas Field. Davy Platform 49/30A, unlit and all navaids inoperative.

UK Coastal

WZ 889/21

171700 UTC Aug 21

SOUTHERN NORTH SEA.
Davy Gas Field.
Davy Platform 49/30A, 53-00.3N 002-53.8E, unlit and all navaids inoperative.


WZ 886/21 171340 UTC Aug 21 ENGLAND, SOUTH COAST. Off Casquets TSS Westwards. Channel Guard, Special light-buoy established.

UK Coastal

WZ 886/21

171340 UTC Aug 21

ENGLAND, SOUTH COAST.
Off Casquets TSS Westwards.
Channel Guard, Special light-buoy established, 49-54.7N 002-52.9W. 

WZ 881/21 161130 UTC Aug 21 ENGLAND, EAST COAST. Southwold Eastwards and Deep Water routes. Survey operations in progress by Fugro Galaxy.

UK Coastal

WZ 881/21

161130 UTC Aug 21

​ENGLAND, EAST COAST.
Southwold Eastwards and Deep Water routes.
1.  Survey operations in progress by Fugro Galaxy within 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 757.

WZ 877/21 150230 UTC Aug 21 NORTH SEA, UK SECTOR. Jasmine Gas Field. Jasmine Platform unlit and all navaids inoperative.

UK Coastal

WZ 877/21

150230 UTC Aug 21

NORTH SEA, UK SECTOR.
Jasmine Gas Field.
Jasmine Platform, 56-43.3N 002-12.3E, unlit and all navaids inoperative.

WZ 869/21 121740 UTC Aug 21 ENGLAND, EAST COAST. Approaches to The Would. Cromer Lighthouse, AIS unstable.

UK Coastal

WZ 869/21

121740 UTC Aug 21

ENGLAND, EAST COAST.
Approaches to The Would.
1. Cromer Lighthouse, 52-55.5N 001-19.0E, AIS unstable.
2. Cancel WZ 843.

WZ 852/21 071240 UTC Aug 21 ENGLAND, EAST COAST. Great Yarmouth North-eastwards. North Caister Light-buoy permanently moved.

UK Coastal

WZ 852/21

071240 UTC Aug 21

 ENGLAND, EAST COAST.
Great Yarmouth North-eastwards.
North Caister Light-buoy permanently moved to 52-40.76N 001-45.76E.

NAVAREA I 134/21 161130 UTC Jul 21 NORTH SEA, UK SECTOR. Everest Gas Field Northwards. Safety Zone established.

NAVAREA 1

NAVAREA I 134/21

161130 UTC Jul 21

​NORTH SEA, UK SECTOR.
Everest Gas Field Northwards.
Chart GB 274.
Safety Zone, radius 500 metres, established centred on 57-49.9N 001-50.6E.

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 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 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. 


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