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Radio Navigation Warnings

We act as the NAVAREA I (NE Atlantic) Co-ordinator for the International Maritime Organization (IMO) and International Hydrographic Organization (IHO) Worldwide Navigational Warning Service and also as the United Kingdom National Co-ordinator for issuing coastal navigational warnings.

While the UKHO will try to keep this site up-to-date by adding and cancelling warnings in real time, for reasons beyond its control this may not always be possible. The most reliable way of obtaining this information is via the appropriate International Maritime Organization (IMO) approved Global Maritime Distress and Safety System (GMDSS) broadcast service i.e. the International NAVTEX system or the International SafetyNET system.

The provision of navigational warnings on this website is not intended to be a substitute for or an alternative to those systems and does not relieve Masters/Captains of their responsibility to monitor them.

Many warnings are of a temporary nature, but others may remain in force for several weeks and may be superseded by Notices to Mariners.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

Number	Type	Warning	Select

2010
027	NAVAREA I	GPS. 1. PRN 31 unusable 101600 UTC to 110400 UTC Feb. 2. Cancel this message 110500 UTC Feb 10.
026	NAVAREA I	RIGLIST. Correct at 080600 UTC FEB 10.
025	NAVAREA I	ENGLAND, West Coast. Light-buoys established marking limits of wind farm.
024	NAVAREA I	NAVAREA ONE MESSAGES IN FORCE AT 051000 UTC FEB 10
013	NAVAREA I	SCOTLAND, WEST COAST. Sea of The Hebrides. Depths less than charted.

2009
Number	Type	Warning	Select
347	NAVAREA I	SOUTHERN NORTH SEA. Off Southwold and Lowestoft. Up to 35 ships at anchor or manoeuvring slowly.
245	NAVAREA I	IRELAND, East Coast. Virtual AIS aids to Navigation established.
205	NAVAREA I	ENGLAND, SOUTH-WEST, SOUTH, SOUTH-EAST and EAST COASTS. AIS inoperative.
055	NAVAREA I	SCOTLAND, WEST COAST. The Hebrides. Sound of Harris. Buoyage.

2008
Number	Type	Warning	Select
341	NAVAREA I	SOUTHERN NORTH SEA. UK Sector. Unexploded ordnance

Many warnings are of a temporary nature, but others may remain in force for several weeks and may be superseded by Notices to Mariners.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

Number	Type	Warning	Select

2010
WZ 144	Coastal	ENGLAND, SOUTH-WEST COAST. Pendeen Northeastward. Depth less than charted.
WZ 139	Coastal	FRANCE, NORTH-WEST COAST. Off Ushant TSS. North-east lightbuoy AIS inoperative.
WZ 138	Coastal	SOUTHERN NORTH SEA. Viking Gasfield. Platform 49/17-HD, fog signal inoperative and lights unreliable.
WZ 137	Coastal	SCOTLAND, EAST COAST. Rattray Head Light unlit.
WZ 134	Coastal	SCOTLAND, NORTH COAST. Rona. North Rona light operating at reduced range.
WZ 131	Coastal	SCOTLAND, WEST COAST. Comet Rock light-buoy AIS inoperative.
WZ 129	Coastal	ENGLAND, SOUTH COAST. Approaches to Falmouth. Anchor marked by buoys with mooring rope also attached and floating in vicinity.
WZ 126	Coastal	IRELAND, EAST COAST. Codling Bank North-eastward. Underwater operations in progress by Fugro Synergy.
WZ 124	Coastal	SOUTHERN NORTH SEA, UK SECTOR. RIGMOVE. Noble Julie Robertson.
WZ 123	Coastal	NORTH SEA, NORWEGIAN SECTOR. RIGMOVE. West Venture.
WZ 122	Coastal	NORTH SEA, UK SECTOR. RIGMOVE. Stena Spey.
WZ 121	Coastal	NORTH SEA, UK SECTOR. RIGMOVE. Transocean Prospect.
WZ 117	Coastal	ENGLAND, SOUTH COAST. Plymouth Breakwater East light unlit.
WZ 115	Coastal	SOUTHERN NORTH SEA. Platform 49/17-DD fog signal inoperative.
WZ 112	Coastal	IRISH SEA. Morecambe Gasfield. Wellhead light-buoy unlit.
WZ 110	Coastal	ENGLAND, SOUTH COAST. Beachy Head South-eastward. Seabed obstruction reported.
WZ 103	Coastal	DOVER STRAIT TSS. Sandettie Nord buoy missing.
WZ 102	Coastal	DOVER STRAIT TSS. Vergoyer Nord light-buoy Racon inoperative.
WZ 100	Coastal	ENGLAND, EAST COAST. Thames Estuary Approaches. Exposed cable on seabed.
WZ 090	Coastal	ENGLAND, EAST COAST. Lowestoft Approaches. Shoal depth reported.
WZ 082	Coastal	IRELAND, NORTH EAST COAST. Belfast Approaches. Victoria Channel Fairway buoy, racon inoperative.
WZ 064	Coastal	WALES, NORTH COAST. Holyhead Approaches. Port hand buoy unlit.
WZ 062	Coastal	SOUTHERN NORTH SEA. Vulcan Gasfield. Platform 48/25-PUR all navaids inoperative.
WZ 058	Coastal	SOUTHERN NORTH SEA. Welland Gasfield. Platform 53/4A, all navaids inoperative.
WZ 040	Coastal	ENGLAND, WEST COAST. Solway Firth Approaches. Obstruction reported.
WZ 039	Coastal	SOUTHERN NORTH SEA. Platform 49/18-A all navaids inoperative.
WZ 036	Coastal	MRCC Falmouth MF service from Scillies site off air.
WZ 026	Coastal	BRISTOL CHANNEL. Swansea Bay Appoaches. Mast unlit and fog signal inoperative.
WZ 013	Coastal	SOUTHERN NORTH SEA, UK SECTOR. Camelot Gasfield. Platform 53/1a-CA, all navaids inoperative.

2009
Number	Type	Warning	Select
WZ 1522	Coastal	SCOTLAND, WEST COAST. Bow Rock light-buoy AIS inoperative.

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 following link to 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: click here

Number	Type	Warning	Select

2010
WZ 144	Coastal	ENGLAND, SOUTH-WEST COAST. Pendeen Northeastward. Depth less than charted.
027	NAVAREA I	GPS. 1. PRN 31 unusable 101600 UTC to 110400 UTC Feb. 2. Cancel this message 110500 UTC Feb 10.
WZ 139	Coastal	FRANCE, NORTH-WEST COAST. Off Ushant TSS. North-east lightbuoy AIS inoperative.
026	NAVAREA I	RIGLIST. Correct at 080600 UTC FEB 10.
WZ 138	Coastal	SOUTHERN NORTH SEA. Viking Gasfield. Platform 49/17-HD, fog signal inoperative and lights unreliable.
WZ 137	Coastal	SCOTLAND, EAST COAST. Rattray Head Light unlit.
025	NAVAREA I	ENGLAND, West Coast. Light-buoys established marking limits of wind farm.
WZ 134	Coastal	SCOTLAND, NORTH COAST. Rona. North Rona light operating at reduced range.
WZ 131	Coastal	SCOTLAND, WEST COAST. Comet Rock light-buoy AIS inoperative.
WZ 129	Coastal	ENGLAND, SOUTH COAST. Approaches to Falmouth. Anchor marked by buoys with mooring rope also attached and floating in vicinity.
024	NAVAREA I	NAVAREA ONE MESSAGES IN FORCE AT 051000 UTC FEB 10
WZ 126	Coastal	IRELAND, EAST COAST. Codling Bank North-eastward. Underwater operations in progress by Fugro Synergy.
WZ 124	Coastal	SOUTHERN NORTH SEA, UK SECTOR. RIGMOVE. Noble Julie Robertson.
WZ 123	Coastal	NORTH SEA, NORWEGIAN SECTOR. RIGMOVE. West Venture.
WZ 122	Coastal	NORTH SEA, UK SECTOR. RIGMOVE. Stena Spey.
WZ 121	Coastal	NORTH SEA, UK SECTOR. RIGMOVE. Transocean Prospect.
WZ 117	Coastal	ENGLAND, SOUTH COAST. Plymouth Breakwater East light unlit.
WZ 115	Coastal	SOUTHERN NORTH SEA. Platform 49/17-DD fog signal inoperative.
WZ 112	Coastal	IRISH SEA. Morecambe Gasfield. Wellhead light-buoy unlit.
WZ 110	Coastal	ENGLAND, SOUTH COAST. Beachy Head South-eastward. Seabed obstruction reported.
WZ 103	Coastal	DOVER STRAIT TSS. Sandettie Nord buoy missing.
WZ 102	Coastal	DOVER STRAIT TSS. Vergoyer Nord light-buoy Racon inoperative.
WZ 100	Coastal	ENGLAND, EAST COAST. Thames Estuary Approaches. Exposed cable on seabed.
WZ 090	Coastal	ENGLAND, EAST COAST. Lowestoft Approaches. Shoal depth reported.
WZ 082	Coastal	IRELAND, NORTH EAST COAST. Belfast Approaches. Victoria Channel Fairway buoy, racon inoperative.
WZ 064	Coastal	WALES, NORTH COAST. Holyhead Approaches. Port hand buoy unlit.
WZ 062	Coastal	SOUTHERN NORTH SEA. Vulcan Gasfield. Platform 48/25-PUR all navaids inoperative.
WZ 058	Coastal	SOUTHERN NORTH SEA. Welland Gasfield. Platform 53/4A, all navaids inoperative.
013	NAVAREA I	SCOTLAND, WEST COAST. Sea of The Hebrides. Depths less than charted.
WZ 040	Coastal	ENGLAND, WEST COAST. Solway Firth Approaches. Obstruction reported.
WZ 039	Coastal	SOUTHERN NORTH SEA. Platform 49/18-A all navaids inoperative.
WZ 036	Coastal	MRCC Falmouth MF service from Scillies site off air.
WZ 026	Coastal	BRISTOL CHANNEL. Swansea Bay Appoaches. Mast unlit and fog signal inoperative.
WZ 013	Coastal	SOUTHERN NORTH SEA, UK SECTOR. Camelot Gasfield. Platform 53/1a-CA, all navaids inoperative.

2009
Number	Type	Warning	Select
WZ 1522	Coastal	SCOTLAND, WEST COAST. Bow Rock light-buoy AIS inoperative.
347	NAVAREA I	SOUTHERN NORTH SEA. Off Southwold and Lowestoft. Up to 35 ships at anchor or manoeuvring slowly.
245	NAVAREA I	IRELAND, East Coast. Virtual AIS aids to Navigation established.
205	NAVAREA I	ENGLAND, SOUTH-WEST, SOUTH, SOUTH-EAST and EAST COASTS. AIS inoperative.
055	NAVAREA I	SCOTLAND, WEST COAST. The Hebrides. Sound of Harris. Buoyage.

2008
Number	Type	Warning	Select
341	NAVAREA I	SOUTHERN NORTH SEA. UK Sector. Unexploded ordnance

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Radio Navigation Warnings

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