Other
Cancel HYDROLANT 354/21, 359/21, 367/21, 371/21 and this msg
Eastern South Atlantic · Gulf of Guinea · Sao Tome and Principe · HYDROLANT 434/21
What this record establishes
Archived notice · 2021-02-14 15:27Z
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 II 67/21 141520Z FEB 21.. Issued 2021-02-14 15:27Z. 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
- Eastern South Atlantic · Gulf of Guinea · Sao Tome and Principe. 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
- M/V attacked in 02-00N 008-15E at 062330Z feb 21cancelled by this notice
- M/V attacked in 00-59S 007-32E at 080520Z febcancelled by this notice
- M/V attacked in 00-51N 007-20E at 081330Z feb vessels are advised to keep clear of this position and to…cancelled by this notice
- M/V attacked in 00-41S 006-07E at 081658Z febcancelled by this notice
- issued
- 2021-02-14 15:27Z
- status
- Archived notice
- authority
- NAVAREA II 67/21 141520Z FEB 21.
- NAVAREA
- NAVAREA II · named as the source of this relay
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. GULF OF GUINEA. SAO TOME AND PRINCIPE. DNC 01. CANCEL HYDROLANT 354/21, 359/21, 367/21, 371/21 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.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
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 04:05Z; 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.