Other

Cancel HYDROPAC 3/17 and this msg

Golf of Tonkin · Vietnam · HYDROPAC 8/17

What this record establishes

Archived notice · 2017-01-02 05:36Z

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) · MRCC VIETNAM 020510Z JAN 17.. Issued 2017-01-02 05:36Z. 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
Golf of Tonkin · Vietnam. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.

Related notices and cancellation links

issued
2017-01-02 05:36Z
status
Archived notice
authority
MRCC VIETNAM 020510Z JAN 17.
issued by
MRCC VIETNAM
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GOLF OF TONKIN.
VIETNAM.
DNC 23.
CANCEL HYDROPAC 3/17 AND THIS MSG.

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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

23 other warnings listed in force · see all

Record snapshot 2026-10-02 09:29Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.