Surveys

Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.

North Atlantic Ocean · NAVAREA IV 12/24

What this record establishes

Listed in force

The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.

Source and dates
NGA MSI in-force warnings (DailyMem*.txt) · OFFSHORE GUYANA 22/24 031800Z JAN 24.. Issued 2024-01-03 19:16Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-10-01 05:17Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
North Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

issued
2024-01-03 19:16Z
status
Listed in force
authority
OFFSHORE GUYANA 22/24 031800Z JAN 24.
NAVAREA
NAVAREA IV
issued by
OFFSHORE GUYANA
sea
North Atlantic Ocean
position
8.090, -56.912
vessels
M/V BOURBON CALM · 3 messagesM/V BOURBON SAPPHIRE · 8 messages
nearest port
Georgetown · 107 nm
source
NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z

Original warning text

WESTERN NORTH ATLANTIC.
UNDERWATER OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V BOURBON CALM
AND M/V BOURBON SAPPHIRE
IN AREAS BOUND BY
A. 08-00.66N 056-44.58W, 08-00.66N 056-40.12W,
   07-54.87N 056-40.12W, 07-54.87N 056-44.58W.
B. 08-15.96N 057-02.23W, 08-15.96N 056-54.25W,
   07-58.60N 056-54.25W, 07-58.60N 057-02.23W.
C. 08-06.94N 056-49.93W, 08-06.94N 056-46.61W,
   07-58.94N 056-46.61W, 07-58.94N 056-49.93W.
WIDE BERTH REQUESTED.

Reading this warning

Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.

All warning terms →

Conditions at the position · now

loading…

MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation

Collected reports in this area · survey operations

297 within 180 nm since 2014 · 17 in the last 12 months · 13 listed in force now

14
15
20
25
26

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-01 05:29Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.