Surveys

Underwater operations in progress until further notice by dredge leila in areas bound by: a. 07-56.05N…

Caribbean Sea · NAVAREA IV 747/23

What this record establishes

Archived notice · 2023-07-07 14:55Z

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) · COLOMBIA 189/23 010508Z JUL 23.. Issued 2023-07-01 05:40Z. 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: Caribbean Sea. 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 Caribbean Sea →

issued: 2023-07-01 05:40Z
status: Archived notice
authority: COLOMBIA 189/23 010508Z JUL 23.
NAVAREA: NAVAREA IV
issued by: COLOMBIA
sea: Caribbean Sea
position: 7.980, -76.815
vessel: DREDGE LEILA · 2 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CARIBBEAN SEA.
COLOMBIA.
UNDERWATER OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY DREDGE LEILA
IN AREAS BOUND BY:
A. 07-56.05N 076-45.47W, 07-55.99N 076-45.44W,
   07-55.65N 076-44.86W, 07-55.67N 076-44.83W.
B. 07-59.31N 076-48.68W, 07-59.31N 076-49.44W,
   07-58.55N 076-49.43W, 07-58.56N 076-48.67W.
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.
Dredging: A dredger is deepening a channel or moving sediment, often with floating or submerged pipelines to the shore.
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 →

Collected reports in this area · survey operations

20 within 180 nm since 2015 · 0 in the last 12 months · 0 listed in force now

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

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

M/V roswal sank in 08-40.88N 076-50.00WWrecks · 42.1 nm
Fish farm established in area bound by 07-10.96N 077-54.60W, 06-56.19N 078-07.51W, 06-50.73N 078-04.75W,…Structures · 103.1 nm

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-09-28 02:36Z; 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.