Surveys

Underwater operations in progress until 312359Z jul by M/V-DP2 keyfield helms in vicinity: a. 15-25.98N…

Andaman or Burma Sea · HYDROPAC 1856/22

What this record establishes

Archived notice · 2022-08-01 01:00Z

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 VIII 537/22 072203Z JUL 22.. Issued 2022-07-07 23:36Z. 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: Andaman or Burma Sea. The parsed report position is 14.463, 95.787. 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 Andaman or Burma Sea →

issued: 2022-07-07 23:36Z
status: Archived notice
self-cancels: 2022-08-01 01:00Z
authority: NAVAREA VIII 537/22 072203Z JUL 22.
NAVAREA: NAVAREA VIII · named as the source of this relay
sea: Andaman or Burma Sea
position: 14.463, 95.787
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ANDAMAN SEA.
BURMA.
DNC 03.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   312359Z JUL BY M/V-DP2 KEYFIELD HELMS IN VICINITY:
   A. 15-25.98N 095-30.01E.
   B. 14-15.34N 095-33.46E.
   C. 14-31.08N 096-00.66E.
   D. 13-57.00N 095-46.09E.
   E. 14-15.29N 095-56.59E.
   F. 14-22.05N 095-56.59E.
   THREE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 010100Z AUG 22.

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.
Underwater operations: Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.
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

77 within 180 nm since 2012 · 1 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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-02 15:33Z; 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.