Underwaterwater operations 29 may thru 07 jun in area bound by 29-36.39N 086-25.00W, 29-30.21N 085-59.10W,…
Gulf of Mexico · NAVAREA IV 587/23
What this record establishes
Archived notice · 2023-05-08 05:00Z
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) · CCGDEIGHT NEW ORLEANS LA 0/23 290000Z MAY 23.. Issued 2023-05-29 00:11Z. 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 map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the Gulf of Mexico →
- issued
- 2023-05-29 00:11Z
- status
- Archived notice
- self-cancels
- 2023-05-08 05:00Z
- authority
- CCGDEIGHT NEW ORLEANS LA 0/23 290000Z MAY 23.
- NAVAREA
- NAVAREA IV
- issued by
- CCGDEIGHT NEW ORLEANS LA
- sea
- Gulf of Mexico
- position
- 29.395, -86.204
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
GULF OF MEXICO. FLORIDA. 1. UNDERWATERWATER OPERATIONS 29 MAY THRU 07 JUN IN AREA BOUND BY 29-36.39N 086-25.00W, 29-30.21N 085-59.10W, 29-10.77N 085-59.99W, 29-17.17N 086-24.99W. ONE MILE BERTH REQUESTED. 2. CANCEL THIS MSG 080500Z MAY 23.
Reading this warning
- 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.
- 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.
- 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.
Collected reports in this area · other warnings
16 within 180 nm since 2001 · 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.
- Four orange flares sighted in 28-38.04N 084-32.69W at 090417Z jun2023-06-09
- Vessel requesting assistance in 27-35.40N 087-56.60W at 191651Z jan2023-01-20
- 30 foot vessel, white hull, split in half in vicinity 29-25.63N 088-16.81W at 021849Z dec2022-12-05
- Multiple red flares sighted in 28-39N 084-29W at 080432Z jan2022-01-08
- Red flare sighted in 29-16N 086-31W at 230420Z sep2021-09-23
- A white and orange flare sighted in 28-11.47N 088-29.76W2021-01-14
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
23 other warnings listed in force · see all
Record snapshot 2026-10-02 00:37Z; 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.