Oceanographic equipment is established in the eastern South Pacific at 29-21S 075-11W; previous HYDROPAC 340/24 is canceled.
South Pacific Ocean · HYDROPAC 471/24
What this record establishes
Cancelled notice · 2026-08-14 18:10Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XV 21/24 090358Z FEB 24.. Issued 2024-02-09 05:28Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-17 15:50Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- South Pacific Ocean. The parsed report position is -29.350, -75.183. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Oceanographic equipment established in 29-33.24S 075-09.20Wcancelled by this notice
Current notices and reporting history in the South Pacific Ocean →
- issued
- 2024-02-09 05:28Z
- status
- Cancelled notice
- authority
- NAVAREA XV 21/24 090358Z FEB 24.
- NAVAREA
- NAVAREA XV · named as the source of this relay
- sea
- South Pacific Ocean
- position
- -29.350, -75.183
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z
Original warning text
EASTERN SOUTH PACIFIC. DNC 07. 1. OCEANOGRAPHIC EQUIPMENT ESTABLISHED IN 29-21.00S 075-11.00W. 2. CANCEL HYDROPAC 340/24.
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.
- Scientific mooring
- Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
- 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.
- 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.
Collected reports in this area · survey operations
39 within 180 nm since 2023 · 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.
- Oceanographic equipment established in 28-27.00S 073-11.00W2024-02-09
- Oceanographic equipment established in 29-33.24S 075-09.20W2024-01-29
- Oceanographic equipment established in 28-11.10S 073-27.20W2024-01-29
- Oceanographic equipment established in 28-02.00S 073-34.32W2024-01-16
- Oceanographic equipment established in 29-45.24S 074-56.58W2024-01-16
- Oceanographic equipment established in 27-54.30S 073-44.94W2024-01-05
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
55 survey operations listed in force · see all
Record snapshot 2026-09-26 21:08Z; 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.