Surveys

Survey operations in progress until 19 mar by M/V coastal triumph in areas bound by: a. 22-37.48N…

Arabian Sea · HYDROPAC 850/23

What this record establishes

Archived notice · 2023-03-20 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) · NAVAREA VIII 234/23 141003Z MAR 23.. Issued 2023-03-14 10:37Z. 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: Arabian 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 Arabian Sea →

issued: 2023-03-14 10:37Z
status: Archived notice
self-cancels: 2023-03-20 00:01Z
authority: NAVAREA VIII 234/23 141003Z MAR 23.
NAVAREA: NAVAREA VIII · named as the source of this relay
sea: Arabian Sea
position: 22.645, 68.937
vessel: M/V COASTAL TRIUMPH · 30 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARABIAN SEA.
GULF OF KACHCHH.
PAKISTAN.
DNC 03.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 19 MAR
   BY M/V COASTAL TRIUMPH IN AREAS BOUND BY:
   A. 22-37.48N 068-35.52E, 22-37.49N 068-40.66E,
      22-30.78N 068-40.68E, 22-30.77N 068-35.54E.
   B. 22-41.41N 068-53.21E, 22-41.41N 068-59.19E,
      22-35.95N 068-59.19E, 22-35.94N 068-53.21E.
   TWO MILE BERTH REQUESTED.
2. CANCEL THIS MSG 200001Z MAR 23.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
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

82 within 180 nm since 2003 · 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

Dangerous wreck in vicinity 23-51.80N 067-20.90EWrecks · 114.1 nm

Worldwide in the collected sources

50 survey operations listed in force · see all

Record snapshot 2026-09-25 00:16Z; 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.