Category: UNDERWATER OPERATIONS
The messages listed here tell marine pilots where subsurface work is happening.
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Underwater operations by M/V Atlantis and Alvin; keep distance.
Underwater ops by M/V ATLANTIS and submersible ALVIN from Jan 24 to Feb 15, 100 miles of 09-48.00N 104-18.00W. Wide berth. Read more
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Underwater operations alert for M/V Atlantis and submersible Alvin.
Warning: Underwater ops by M/V Atlantis and submersible Alvin from Jan 24 to Feb 15 near 9-48N 104-18W. Wide berth requested. Read more
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Underwater operations by M/V Atlantis, submersible Alvin; wide berth requested.
Underwater ops by M/V Atlantis and Alvin from Jan 24 to Feb 15 near 09-48.00N 104-18.00W; wide berth requested. Read more
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Underwater operations near Guamare, Jan-Dec 2025; cancel warning N 0010/25.
Coastal Warning N 0011/25: Underwater ops by Polar Blue north of Guamaire from Jan 7 to Dec 7, 2025, 10 AM to 8 PM. Cancel N 0010/25. Read more
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Underwater operations from Jan 24 to Feb 15 near specified coordinates.
Underwater operations by M/V Atlantis and submersible Alvin from Jan 24 to Feb 15, 100 miles of 09-48N 104-18W. Wide berth requested. Read more
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Underwater operations by M/V MPV Everest, January 2-31, 500m berth.
Underwater operations by M/V MPV Everest from Jan 2-31, 500m berth requested in specified Western Atlantic coordinates. Read more
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Underwater operations ongoing in specified Atlantic areas until December 31.
Underwater operations ongoing until Dec 31 in specified areas; vessels should maintain wide berth. Read more
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Underwater operations ongoing until December 31; keep wide berth.
Underwater ops by M/V Breaux Tide until Dec 31 in specified area. Please keep a wide berth. Read more
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Underwater operations by M/V Normand Samson until June 15.
Underwater operations by M/V Normand Samson in the Western North Atlantic until June 15; a wide berth is requested. Read more
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Underwater operations ongoing in specified area; wide berth requested.
Underwater ops by tug SD Grace in specified area until Dec 31. Requesting wide berth. Read more
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Underwater operations ongoing until December 31; keep distance.
Underwater operations by M/V AHT SD Honour ongoing until Dec 31 in specified area. Requesting wide berth. Read more
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Underwater operations ongoing until June 15; maintain distance.
Underwater ops by M/V Normand Samson ongoing until Jun 15; wide berth requested in specified area of Western N. Atlantic. Read more
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Underwater operations in Caribbean by M/V Lydian-L, Jan 27-29.
Underwater ops by M/V Lydian-L from Jan 27-29 in Eastern Caribbean; 500m berth requested at 10-05.08N 061-02.13W. Read more
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Underwater operations by M/V Atlantis near specified coordinates; seek wide berth.
Underwater ops by M/V Atlantis and submersible Alvin from Jan 24 to Feb 15 near 09-48.00N 104-18.00W; wide berth requested. Read more
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Underwater operations ongoing; wide berth requested until December 31.
Underwater operations ongoing in specified Western North Atlantic areas until Dec 31. Please maintain a wide berth. Read more
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Underwater operations by M/V Lydian-L from January 27-29.
Underwater ops by M/V Lydian-L from Jan 27-29 in Eastern Caribbean; 500m berth requested at 10-05.08N 061-02.13W. Read more
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Underwater operations scheduled southeast of Cabo Frio, January 21-28, 2025.
NAVAREA Warning 0041/25: Underwater ops by Fugro Resilience SE of Cabo Frio, Jan 21-28, 2025, 07:00-20:00. Read more
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Underwater operations north of Guamare from Jan to Dec 2025.
COASTAL WARNING N 0011/25: Underwater ops by Polar Blue near Guamare from Jan 7 to Dec 7, 2025, 10:00 to 20:00. Cancel N 0010/25. Read more
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Underwater operations by M/V MPV Everest from January 2-31.
Underwater ops by M/V MPV Everest from Jan 2-31 in Western Atlantic. 500m berth requested along specified trackline. Read more
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Underwater operations ongoing; maintain distance in specified areas.
Underwater operations ongoing in specified areas until Dec 31. Please maintain a wide berth. Read more