Surveys

Trinidad and tobago

Caribbean Sea · NAVAREA IV 101/23

What this record establishes

Archived notice · 2023-01-28 00:01Z

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) · TRINIDAD AND TOBAGO 8/23 231900Z JAN 23.. Issued 2023-01-23 22:16Z. 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: 2023-01-23 22:16Z
status: Archived notice
self-cancels: 2023-01-28 00:01Z
authority: TRINIDAD AND TOBAGO 8/23 231900Z JAN 23.
NAVAREA: NAVAREA IV
issued by: TRINIDAD AND TOBAGO
sea: Caribbean Sea
position: 10.089, -61.017
vessel: M/V DELTA ADMIRAL · 3 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN CARIBBEAN SEA.
WESTERN NORTH ATLANTIC.
TRINIDAD AND TOBAGO.
1. SURVEY OPERATIONS 24 THRU 27 JAN
   BY M/V DELTA ADMIRAL IN AREA BOUND BY
   10-07.88N 061-02.77W, 10-06.96N 061-02.10W,
   10-03.71N 060-57.99W, 10-03.59N 061-00.67W,
   10-05.17N 061-01.82W, 10-06.15N 061-02.86W,
   10-06.32N 061-02.98W, 10-07.02N 061-03.49W,
   10-07.45N 061-03.26W, 10-07.88N 061-02.77W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 280001Z JAN 23.

Reading this warning

Survey operations: A research or survey vessel is mapping the seabed or water column, often while towing equipment.
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.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · survey operations

171 within 180 nm since 2002 · 8 in the last 12 months · 1 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

Trinidad and tobagoNav aids · 3.3 nm
Trinidad and tobagoNav aids · 24.5 nm
Trinidad and tobagoCable ops · 27.6 nm
Trinidad and tobagoNav aids · 36 nm
Trinidad and tobagoWrecks · 39.6 nm
Trinidad and tobagoSurveys · 42.9 nm
Trinidad and tobagoNav aids · 56.8 nm
Trinidad and tobagoNav aids · 64.4 nm
Faro punta mejillones light 10-42.20N 062-08.40W discontinuedNav aids · 75.9 nm

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-02 03:23Z; 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.