Underwater operations in progress until 22 aug by M/V joanne morrison in 29-11.32N 094-21.05W
Gulf of Mexico · NAVAREA IV 731/21
What this record establishes
Archived notice · 2021-08-23 00:01Z
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) · MORRISON ENERGY 202203Z AUG 21.. Issued 2021-08-20 23:28Z. 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
- Gulf of Mexico. The parsed report position is 29.189, -94.351. 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 Gulf of Mexico →
- issued
- 2021-08-20 23:28Z
- status
- Archived notice
- authority
- MORRISON ENERGY 202203Z AUG 21.
- NAVAREA
- NAVAREA IV
- issued by
- MORRISON ENERGY
- sea
- Gulf of Mexico
- position
- 29.189, -94.351
- vessel
- M/V JOANNE MORRISON
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
GULF OF MEXICO. TEXAS. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 22 AUG BY M/V JOANNE MORRISON IN 29-11.32N 094-21.05W. ONE MILE BERTH REQUESTED. 2. CANCEL THIS MSG 23 AUG 21.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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.
Collected reports in this area · survey operations
32 within 180 nm since 2002 · 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.
- Survey operations in progress until further notice by M/V island frontier in area bound by 27-14.19N…2026-09-26
- Survey operations in progress until 25 jan 25 by M/V chloe candies with submersibles, M/V sanco sword and…2024-07-05
- Survey operations 03 aug thru 30 jun 24 by M/V fugro enterprise and M/V fugro brasilis towing 130 meter long…2023-08-02
- Survey operations in progress until 10 sep by M/V olympic artemis with two submersibles, M/V harvey deepsea…2023-05-09
- Survey operations in progress until 03 nov by M/V shelia bordelon, M/V sw gallien, M/V sw mikkelsen and M/V…2023-04-30
- Survey operations in progress until 03 oct by M/V sheila bordelon, M/V sw gallien and M/V sw mikkelsen in…2023-04-29
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 2026-10-03 12:19Z; 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.