Surveys

Underwater operations 30 aug thru 20 sept by barge donaux with divers in 03-51.5N 006-58.5E 1.5 mile berth…

Gulf of Guinea · HYDROLANT 1382/08

What this record establishes

Archived notice · 2008-09-21 00:00Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA II 260/08 280427Z AUG 08.. Issued 2008-08-28 06:20Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Gulf of Guinea. The parsed report position is 3.858, 6.975. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Gulf of Guinea →

issued
2008-08-28 06:20Z
status
Archived notice
authority
NAVAREA II 260/08 280427Z AUG 08.
NAVAREA
NAVAREA II · named as the source of this relay
sea
Gulf of Guinea
position
3.858, 6.975
vessel
BARGE DONAUX
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 30 AUG THRU 20 SEPT BY
   BARGE DONAUX WITH DIVERS IN 03-51.5N 006-58.5E
   1.5 MILE BERTH REQUESTED.
2. CANCEL THIS MSG 21 SEPT.

Reading this warning

Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

38 within 180 nm since 2002 · 2 in the last 12 months · 1 listed in force now

02
05
10
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 2026-10-02 02:14Z; 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.