Radio Navigation Warnings

Reference Date Time Group Description Select
2092 WZ 721/25 191345 UTC Nov 25 THAMES. GUNFLEET SANDS WIND FARM. A. TURBINE A01 FOG SIGNAL INOPERATIVE. B. TURBINE A06 UNLIT AND FOG SIGNAL INOPERATIVE.

UK Coastal

WZ 721/25

191345 UTC Nov 25 

                                                THAMES. 
GUNFLEET SANDS WIND FARM.
A. TURBINE A01 51-43.7N 001-11.3E FOG SIGNAL INOPERATIVE.
B. TURBINE A06 51-45.0N 001-14.6E UNLIT AND FOG SIGNAL INOPERATIVE.
2091 WZ 720/25 190625 UTC Nov 25 HUMBER. INDEFATIGABLE GAS FIELD. PLATFORM 49/18-BP, BD, UNLIT AND ALL NAVAIDS INOPERATIVE.

UK Coastal

WZ 720/25

190625 UTC Nov 25 

                                                HUMBER.
INDEFATIGABLE GAS FIELD.
PLATFORM 49/18-BP, BD, 53-23.5N 002-31.5E, UNLIT AND ALL NAVAIDS INOPERATIVE.
2090 NAVAREA I 262/25 181645 UTC Nov 25 TUGS SIEM OPAL, SIEM PEARL AND BB WORKER TOWING SUBMERGED PIPELINE.

NAVAREA 1

NAVAREA I 262/25

181645 UTC Nov 25 

                                                NORTH SEA.
WICK TO BERGEN BANK .
1. TUGS SIEM OPAL, SIEM PEARL AND BB WORKER IN 58-36N 001-47W AT 181623 UTC NOV 2025 TOWING SUBMERGED PIPELINE BUNDLE ALONG LINE JOINING 58-27N 002-43W, 58-28N 002-15W, 58-57N 000-25W, 59-06N 001-49E, 59-18N 002-23E, 59-45N 002-50E, 60-02N 002-50E, 60-11N 002-35E.
LENGTH OF TOW 7500 METRES. 
M/V SIEM STINGRAY AND F/V WESTRO IN ATTENDANCE. 
ONE MILE BERTH REQUESTED.
2. CANCEL NAVAREA I 260/25.
2089 WZ 717/25 181005 UTC Nov 25 GMDSS. MRCC DUBLIN. VHF R/T AND DSC SERVICES FROM MINE HEAD SITE OFF AIR.

UK Coastal

WZ 717/25

181005 UTC Nov 25 

                                                GMDSS.
MRCC DUBLIN.
VHF R/T AND DSC SERVICES FROM MINE HEAD SITE 51-59.6N 007-35.2W OFF AIR.
2087 NAVAREA I 261/25 170500 UTC Nov 25 RIGLIST. CORRECT AT 170500 UTC NOV 2025

NAVAREA 1

NAVAREA I 261/25

170500 UTC Nov 25 

                                                1. RIGLIST. CORRECT AT 170500 UTC NOV 2025.

    SOUTHERN NORTH SEA: 51N TO 55N
    52-07.7N 003-56.4E VALARIS 123 ACP P18-A
    53-00.2N 002-53.7E HAEVA ACP DAVY GAS FIELD
    53-07.1N 002-06.3E ENSCO 92 ACP LEMAN GAS FIELD
    53-13.0N 003-55.1E SEAFOX 4 ACP K15-FK-1
    53-38.7N 000-36.2E OBANA ACP AMETHYST GAS FIELD
    53-41.8N 004-38.8E SWIFT 10 ACP WINTERSHALL GAS FIELD
    54-05.7N 003-21.8E WELL SAFE PROTECTOR ACP E17A-A
    54-18.0N 001-39.6E ERDA ACP TRENT GAS FIELD
    54-34.2N 002-17.6E VALARIS NORWAY ACP CYGNUS GAS FIELD
    54-49.4N 004-56.2E PROSPECTOR 1
   
    NORTH SEA: 55N TO 60N, EAST OF 5W
    56-16.5N 003-23.9E NOBLE INVINCIBLE ACP VALHALL OIL FIELD
    56-32.7N 003-13.4E LINUS ACP EKOFISK COMPLEX
    56-32.9N 003-12.8E WEST ELARA ACP EKOFISK COMPLEX
    56-40.0N 003-48.0E NOBLE INTREPID
    56-41.7N 002-14.8E PAUL B LOYD JR
    56-41.9N 002-20.2E VALARIS 120 ACP JUDY OIL FIELD
    56-54.0N 002-22.8E VALARIS 122 ACP 30/02-WHPA
    57-01.9N 001-57.3E VALARIS 121 ACP SHEARWATER OIL FIELD
    57-11.6N 001-54.8E VALARIS STAVANGER ACP CULZEAN GAS FIELD
    57-16.5N 000-46.5E SHELF DRILLING FORTRESS
    57-22.5N 001-59.8E NOBLE INNOVATOR ACP MUNGO OIL FIELD
    57-48.9N 004-32.0E MAERSK INSPIRER ACP YME OIL FIELD
    58-18.5N 001-46.4W SAFE CALEDONIA ACP CAPTAIN OIL FIELD
    58-25.1N 001-43.0E NOBLE LLOYD NOBLE ACP SLEIPNER GAS FIELD
    58-42.3N 001-36.7E DEEPSEA ATLANTIC
    58-42.8N 002-12.6E DEEPSEA NORDKAPP
    59-13.1N 002-25.4E COSL PIONEER
    59-15.2N 002-36.1E DEEPSEA ABERDEEN
    59-52.3N 002-34.0E NOBLE INTEGRATOR
    
    NORWEGIAN SEA: 60N TO 65N, EAST OF 5W
    60-10.8N 002-35.4E DEEPSEA STAVANGER
    60-26.4N 003-01.4E DEEPSEA YANTAI
    60-30.3N 002-00.8E ASKEPOTT ACP MARTIN LINGE
    61-04.7N 001-59.3E ASKELADDEN
    61-16.5N 002-06.9E COSL PROMOTER
    61-18.0N 002-21.7E DEEPSEA BOLLSTA
    61-23.6N 003-22.3E TRANSOCEAN NORGE
    61-30.9N 000-57.1E NOBLE PATRIOT
    64-48.8N 007-03.6E TRANSOCEAN ENCOURAGE

    SOUTH AND WEST OF GREAT BRITAIN
    53-34.0N 003-27.2W VALARIS 72 ACP HAMILTON GAS FIELD
    53-37.9N 003-10.5W IRISH SEA PIONEER ACP LENNOX OIL/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 NAVAREA I 252/25.
2085 WZ 714/25 161206 UTC Nov 25 HUMBER. BESSEMER GAS FIELD. PLATFORM 49/23E FOG SIGNAL INOPERATIVE.

UK Coastal

WZ 714/25

161206 UTC Nov 25 

                                                HUMBER.
BESSEMER GAS FIELD.
1. PLATFORM 49/23E, 53-11.9N 002-29.1E, FOG SIGNAL INOPERATIVE.
2. CANCEL WZ 712/25.
2084 WZ 711/25 150510 UTC Nov 25 LUNDY. LUCIFER BUOY AIS UNRELIABLE.

UK Coastal

WZ 711/25

150510 UTC Nov 25 

                                                LUNDY.
LUCIFER BUOY 52-17.0N 006-12.7W AIS UNRELIABLE.
2064 NAVAREA I 259/25 141001 UTC Nov 25 NAVAREA I WARNINGS IN FORCE AT 141000 UTC NOV 2025

NAVAREA 1

NAVAREA I 259/25

141001 UTC Nov 25 

                                                1. NAVAREA I WARNINGS IN FORCE AT 141000 UTC NOV 2025:

2025 SERIES: 157, 240, 252, 254, 256, 257, 259.

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 (240/25 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: HTTPS://MSI.ADMIRALTY.CO.UK/RADIONAVIGATIONALWARNINGS.
ALTERNATIVELY, THESE MAY BE REQUESTED BY E-MAIL FROM NAVAREA I CO-ORDINATOR AT: NAVWARNINGS@UKHO.GOV.UK

2. CANCEL NAVAREA I 250/25.
2083 NAVAREA I 257/25 131100 UTC Nov 25 SCOTLAND, EAST COAST. MORAY FIRTH. MORAY WEST OFFSHORE WINDFARM PERIMETER BUOYS PERMANENTLY DISCONTINUED.

NAVAREA 1

NAVAREA I 257/25

131100 UTC Nov 25 

                                                SCOTLAND, EAST COAST.
MORAY FIRTH.
CHART GB 115 (INT 1503).
MORAY WEST OFFSHORE WINDFARM 58-06N 003-00W PERIMETER BUOYS PERMANENTLY DISCONTINUED.
2021 WZ 706/25 121505 UTC Nov 25 IRISH SEA. WALNEY WIND FARM. EAST CARDINAL BUOY UNLIT.

UK Coastal

WZ 706/25

121505 UTC Nov 25 

                                                IRISH SEA. 
WALNEY WIND FARM.
1. EAST CARDINAL BUOY 54-01.7N 003-25.9W UNLIT.
2. CANCEL WZ 614/25.
2082 NAVAREA I 256/25 120130 UTC Nov 25 SCOTLAND, WEST COAST. OUTER HEBRIDES WESTWARDS. INTERMITTENT GNSS JAMMING EXERCISE.

NAVAREA 1

NAVAREA I 256/25

120130 UTC Nov 25 

                                                SCOTLAND, WEST COAST.
OUTER HEBRIDES WESTWARDS.
1. INTERMITTENT GNSS JAMMING EXERCISE IN PROGRESS DAILY FROM 0900 TO 1800 UTC, 17 TO 21 NOV AND 24 TO 28 NOV, IN AREA BOUND BY 58-39N 013-16W, 58-39N 011-36W, 57-41N 008-42W, 57-19N 008-42W, 56-18N 011-26W, 56-18N 013-07W, 56-50N 014-03W, 58-04N 014-08W.
2. ALTERNATIVE MEANS OF NAVIGATION SHOULD BE USED. GNSS EQUIPMENT SHOULD BE CHECKED FOR CORRECT OPERATION WHEN CLEAR OR ON COMPLETION OF THE EXERCISE.
3. IN AN EMERGENCY, JAMMING MAY BE STOPPED VIA HEBRIDES RANGE CONTROL ON VHF CH16 OR TELEPHONE NUMBER +44(0)1870 604554.
4. CANCEL THIS MSG 281900 UTC NOV 2025.
2081 WZ 705/25 111555 UTC Nov 25 GMDSS. MRCC STORNOWAY. VHF R/T AND DSC SERVICES FROM BARRA SITE OFF AIR.

UK Coastal

WZ 705/25

111555 UTC Nov 25 

                                                GMDSS. 
MRCC STORNOWAY.
VHF R/T AND DSC SERVICES FROM BARRA SITE  57-00.7N 007-30.4W OFF AIR.
2077 WZ 703/25 081730 UTC Nov 25 GMDSS. MRCC ABERDEEN. VHF DSC SERVICE FROM INVERBERVIE SITE OFF AIR.

UK Coastal

WZ 703/25

081730 UTC Nov 25 

                                                GMDSS. MRCC ABERDEEN. 
1. VHF DSC SERVICE FROM INVERBERVIE SITE 56-51.1N 002-15.7W OFF AIR.
2. CANCEL 608/25 (GA19).
2071 WZ 691/25 052100 UTC Nov 25 HUMBER. SOUTH WINTERTON RIDGE BUOY UNLIT.

UK Coastal

WZ 691/25

052100 UTC Nov 25 

                                                HUMBER.
SOUTH WINTERTON RIDGE BUOY 52-47.2N 002-03.5E UNLIT.
2009 WZ 686/25 011047 UTC Nov 25 GMDSS. MRCC SHETLAND. VHF R/T SERVICE FROM DUNNET HEAD SITE UNSTABLE.

UK Coastal

WZ 686/25

011047 UTC Nov 25 

                                                GMDSS. 
MRCC SHETLAND.
1. VHF R/T SERVICE FROM DUNNET HEAD SITE 58-40.3N 003-22.6W UNSTABLE.
2. CANCEL WZ 588/25.
2062 WZ 680/25 301522 UTC Oct 25 FORTH. MONTROSE SOUTHEASTWARDS. BUOYS UNLIT.

UK Coastal

WZ 680/25

301522 UTC Oct 25 

                                                FORTH.
MONTROSE SOUTHEASTWARDS.
BUOYS UNLIT: 
A. NORTH CARDINAL 56-35.9N 002-09.5W.
B. SOUTH CARDINAL 56-25.1N 002-14.0W.
C. SOUTH CARDINAL 56-24.9N 002-07.9W.
2061 WZ 676/25 242210 UTC Oct 25 GMDSS. MRCC ABERDEEN. MF R/T SERVICE FROM GREGNESS SITE OFF AIR.

UK Coastal

WZ 676/25

242210 UTC Oct 25 

                                                GMDSS. 
MRCC ABERDEEN.
1. MF R/T SERVICE FROM GREGNESS SITE 57-07.7N 002-03.2W OFF AIR.
2. CANCEL WZ 569/25.
2060 WZ 674/25 241730 UTC Oct 25 CROMARTY. HYWIND FLOATING WIND FARM. TURBINE FOG SIGNALS INOPERATIVE.

UK Coastal

WZ 674/25

241730 UTC Oct 25 

                                                CROMARTY. 
HYWIND FLOATING WIND FARM.
1. TURBINE FOG SIGNALS INOPERATIVE: 
A. HS2 57-29.4N 001-21.1W. 
B. HS4 57-28.7N 001-21.2W.
2. CANCEL WZ 585/25.
2057 NAVAREA I 240/25 201520 UTC Oct 25 WESTERN APPROACHES TO THE UNITED KINGDOM AND IRELAND. VALENTIA NAVTEX STATION (W) OFF AIR.

NAVAREA 1

NAVAREA I 240/25

201520 UTC Oct 25 

                                                GMDSS.
WESTERN APPROACHES TO THE UNITED KINGDOM AND IRELAND.
VALENTIA NAVTEX STATION (W) 51-56N 010-21W OFF AIR.
2055 WZ 667/25 191740 UTC Oct 25 HUMBER. INNER CROMER KNOLL. PLATFORM BLYTHE UNLIT AND ALL NAVAIDS INOPERATIVE.

UK Coastal

WZ 667/25

191740 UTC Oct 25 

                                                HUMBER.
INNER CROMER KNOLL.
PLATFORM BLYTHE 53-14.5N 001-26.8E UNLIT AND ALL NAVAIDS INOPERATIVE.
2048 WZ 658/25 141714 UTC Oct 25 THAMES. EAST ANGLIA ONE WIND FARM. TURBINE A03 FOG SIGNAL INOPERATIVE.

UK Coastal

WZ 658/25

141714 UTC Oct 25 

                                                THAMES. 
EAST ANGLIA ONE WIND FARM.
1. TURBINE A03, 52-09.3N 002-27.7E, FOG SIGNAL INOPERATIVE.
2. CANCEL WZ 549/25.
1983 WZ 654/25 120822 UTC Oct 25 HUMBER. INNER BANK SOUTHEASTWARDS. PLATFORM SOUTHWARK UNLIT AND ALL NAVAIDS INOPERATIVE.

UK Coastal

WZ 654/25

120822 UTC Oct 25 

                                                HUMBER.
INNER BANK SOUTHEASTWARDS.
1. PLATFORM SOUTHWARK 53-11.0N 002-05.8E UNLIT AND ALL NAVAIDS INOPERATIVE.
2. CANCEL WZ 546/25.
2045 WZ 652/25 111750 UTC Oct 25 PLYMOUTH. EDDYSTONE ROCKS SOUTHEASTWARDS. WRECK OF F/V FAITHFUL REPORTED.

UK Coastal

WZ 652/25

111750 UTC Oct 25 

                                                PLYMOUTH. 
EDDYSTONE ROCKS SOUTHEASTWARDS.
1. WRECK OF F/V FAITHFUL REPORTED IN 50-01.0N 004-04.0W.
2. CANCEL WZ 644/25.
1904 NAVAREA I 157/25 021235 UTC Jul 25 SOUTHERN, SOUTHEASTERN, CENTRAL AND NORTHERN BALTIC, GULF OF FINLAND, GULF OF RIGA AND SEA OF AALAND. GNSS, AIS, RADAR AND DGPS INTERFERENCE OBSERVED.

NAVAREA 1

NAVAREA I 157/25

021235 UTC Jul 25 

                                                SOUTHERN, SOUTHEASTERN, CENTRAL AND NORTHERN BALTIC, GULF OF FINLAND, GULF OF RIGA AND SEA OF AALAND.
1. GNSS, AIS, RADAR AND DGPS INTERFERENCE OBSERVED WITHIN THE AREA.
MARINERS ADVISED TO EXERCISE CAUTION AND BE PREPARED FOR DISRUPTION TO NAVIGATION.
2. BALTIC SEA NAVIGATION WARNING 026/25 REFERS.