Hazard Alerts
Latest hazard alerts from the Kingfisher Bulletin
Activity
Renewables
Jack up Barge (JB 120) - East Anglia THREE Offshore Converter Station (OFCS)
22 October 2025 15:29:23
Mariners are advised that circa the 04/11/2025, the Jack-up Barge (JUB) ‘JB 120’ will transit to, and jack up alongside the East Anglia THREE Offshore Converter Station (OFCS) within the East Anglia THREE Windfarm area set out in section 2 of this document, with the intention of remaining on station for approximately 6 months.
Activity
Subsea cables
IFA2000 Cable Survey Operations in Folkestone
20 October 2025 13:21:57
National Grid will be conducting cable survey operations offshore from Folkestone, as part of the IFA2000 interconnector infrastructure. The survey operations will be carried out by survey vessels ZEF NORDET and CERES 3 , and are currently expected to be completed on or around 30 October 2025, subject to weather and operational conditions.
Activity
Subsea cables
LT14 Western Isles HVDC Landfall Nearshore GI
17 October 2025 16:12:17
Mariners are advised that from 28th October 2025 to 21st November 2025 the Fugro vessel “Aran 250” will be performing Nearshore Geotechnical boreholes completed from a jack up barge (JUB).
Activity
Oil and gas
Rig - Deepsea Bollsta
16 October 2025 09:45:50
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
Activity
Renewables
Deployment of Passive Acoustic Lander at Gywnt y Mor windfarm
15 October 2025 18:26:56
Deployment of passive acoustic lander within Gwynt y Mor windfarm.
Activity
Non specific
Deployment of marine buoy to monitor water quality - Croyde Bay
15 October 2025 17:14:44
The North Devon UNESCO Biosphere is deploying a marine buoy to Croyde Bay to monitor water quality.
Activity
Subsea cables
Submarine Cables Inspection – Gosport Haslar Lake
15 October 2025 17:10:12
Please be advised that Spectrum (on behalf of SEPD) will be undertaking a Geophysical Survey across a submarine electricity cable corridor in Haslar Lake.
Activity
Subsea cables
Submarine Cables Inspection – Isle of Wight Sticelett (South)
15 October 2025 17:01:40
Please be advised that Spectrum (on behalf of SEPD) will be undertaking a Geophysical Survey across a submarine electricity cable corridor at the caravan parking area across from Sticelett Farm, Tower FCO1.
Activity
Subsea cables
Submarine Cables Inspection – Isle of Wight Sticelett (North)
15 October 2025 16:54:57
Please be advised that Spectrum (on behalf of SEPD) will be undertaking a Geophysical Survey across a submarine electricity cable corridor down path to beach at junction of Inchmery Ln and Lepe Rd.
Activity
Subsea cables
Southern Electric Power Distribution ED2 Submarine Cables Inspection–Isle of Wight Gurnard (North)
15 October 2025 14:14:08
Please be advised that Spectrum (on behalf of SEPD) will be undertaking a Geophysical Survey across a submarine electricity cable corridor originating at Lepe beach. The works will utilise the following platform to complete aerial survey operations: AeroMAG® Unmanned Aerial Magnetometer Systems (UAMS)
Activity
Subsea cables
Southern Electric Power Distribution (SEPD) ED2 SEPD Submarine Cables Inspection–Havant Gable Head
15 October 2025 14:09:59
Please be advised that Spectrum (on behalf of SEPD) will conduct a geophysical survey of the submarine electricity cable corridor in Havant. Access to the survey area will be via the path from Mill Lane to the rear of the boatyard off Langstone Road. The works will utilise the following platform to complete aerial survey operations: AeroMAG® Unmanned Aerial Magnetometer Systems (UAMS)
Activity
Subsea cables
Submarine Cables Inspection – Beaulieu River
15 October 2025 13:48:05
Southern Electric Power Distribution (SEPD) ED2 SEPD. Geophysical Survey across a submarine electricity cable corridor in the Beaulieu River.
Activity
Oil and gas
DEME Innovation Heavy Lift Vessel removing topsides & jacket of the Boulton BM & Munro MH platforms
15 October 2025 13:41:08
Harbour Energy will completely remove and recover the topsides and jacket (including risers) of the Boulton BM and Munro MH platforms using the DEME Innovation Heavy Lift Vessel. The vessel will mobilise between the 21st October – 28th October 2025 for approximately 25 days. The DEME Rollingstone fallpipe vessel will perform rock placement at Munro MH to facilitate the DEME Innovation Heavy Lift Vessel scope of work. The vessel will mobilise between 23rd – 30th October for approximately 5 days.
Hazard
Oil and gas
Blythe Platform Unlit & Unmarked
15 October 2025 11:49:54
Blythe Platform has lost power and is potentially unlit and unmarked. Guard Vessel being mobilised
Hazard
Oil and gas
Foinaven Buoyant Risers within Water Column
14 October 2025 14:21:59
Subsea Risers which left in the water column at Foinaven following the removal of the FPSO. These buoyant risers are now covered by 3 new 500m safety zones but do still pose a significant snagging hazard due to their size, number (13x) and height above seabed (160m at highest point). There is no surface infrastructure in the area hence this notification to supplement the 500m zones
Activity
Renewables
Recovery of an Object at Sea - Seabed Frame
13 October 2025 10:16:29
Vessel conducting search & retrieval activities to find & remove the Seabed Frame. This will involve a search area around the last known location. We request marine users to remain 500m away from all assets.
Activity
Renewables
Marine Growth Campaign - Muir Mhòr Offshore Wind Farm
13 October 2025 10:13:30
2 x Measurement Systems to be deployed with associated buoyage, mooring & anchoring within Marine Growth Campaign Area. We request marine users to remain 500m away from all assets and expect a mooring excursion radius of ~200m.
Activity
Oil and gas
Plug and Abandonment Operations - Otter Wells
10 October 2025 10:04:05
Noble Patriot to complete plug and abandonment operations at the Otter wells. Positioned with 8 x anchors within the radius of 61 30 52.206 North 00 57 4.215 East. Consent to Locate permit reference number: WIA/1727 CL/1556.
Hazard
Non specific
Dangerous Object - Exposed Steel Wire Rope - Eastern Green Link 2
09 October 2025 16:47:33
Following the EGL2 offshore UXO TI Campaign along the EGL2 survey corridor are advising Mariners of three exposed ends of steel wire rope (SWR) protruding from the seabed in the positions listed below.
Activity
Fishing restrictions
Maintenance - Radar Project - PL2 Pipeline
09 October 2025 08:56:56
A workclass ROV Support vessel will perform a non-intrusive maintenance scope on and near to the PL2 pipeline. Vessel : N-Sea Pathfinder
