Mariners are advised that survey operations are due to be carried out by the vessel NRH Katabatic at four wind turbines within the Gwynt y Môr Offshore Wind Farm off the North Wales coast during February 2026. A Notice to Mariners about these operations is summarised below and can be downloaded here.
Survey operations
The NRH Katabatic is due to be carrying out the survey of four wind turbines, starting on the 18th of February. The survey will continue for approximately 7 days, subject to weather and sea conditions.
The survey locations are listed below.
- F07J: 053°27.748’N 003°36.971’W
- J17F: 053°26.788’N 003°29.993’W
- M03L: 053°25.736’N 003°36.935’W
- D03R: 053°28.418’N 003°36.983’W
The location, latitude and longitude of the wind farm and all of the turbines within it can be seen on the Kingfisher Awareness Chart here.
This work is being carried out under Marine Licence number 11/52/ML/4.
Vessel details
NRH Katabatic is a GRP catamaran survey vessel measuring 12m in length by 5m in width, with a white hull and a superstructure coloured white with an orange roof. The vessel details and a link to its present location are given below:
- NRH Katabatic: Survey vessel | Call sign MAMU2
When at the specified locations the vessel will be towing equipment and restricted in the ability to manoeuvre. Mariners are requested where possible to maintain a 500m exclusion area around the survey vessel.
The vessel will monitor VHF Channel 16 at all times.