Exercises

Hazardous operations 0430Z to 0930Z daily 09 and 10 jan in area bound by 11-50N 093-40E, 12-00N 093-40E,…

Andaman or Burma Sea · HYDROPAC 74/20

What this record establishes

Archived notice · 2020-01-10 10:30Z

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 12/20 060951Z JAN 20.. Issued 2020-01-06 09:59Z. 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 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 Andaman or Burma Sea →

issued: 2020-01-06 09:59Z
status: Archived notice
self-cancels: 2020-01-10 10:30Z
authority: NAVAREA VIII 12/20 060951Z JAN 20.
NAVAREA: NAVAREA VIII · named as the source of this relay
sea: Andaman or Burma Sea
position: 11.917, 93.917
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ANDAMAN SEA.
ANDAMAN ISLANDS.
DNC 03.
1. HAZARDOUS OPERATIONS 0430Z TO 0930Z DAILY
   09 AND 10 JAN IN AREA BOUND BY
   11-50N 093-40E, 12-00N 093-40E,
   12-00N 094-10E, 11-50N 094-10E.
2. CANCEL THIS MSG 101030Z JAN 20.

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.
Hazardous operations: NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
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.
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 · military exercises

394 within 180 nm since 2002 · 21 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

Hazardous operations 1130Z to 1430Z daily 28 thru 29 sep in area bound by 11-40.23N 092-45.75E, 11-40.77N…Exercises · 67.6 nm

Worldwide in the collected sources

30 military exercises listed in force · see all

Record snapshot 2026-09-30 13:02Z; source collection times vary.

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

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.