Derelicts

Derelict S/V adrift in 23-11.00S 042-09.00W on 26 jul

South Atlantic Ocean · HYDROLANT 1683/23

What this record establishes

Archived notice · 2023-07-29 19:15Z

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 RIO 27/23 261857Z JUL 23.. Issued 2023-07-26 19:18Z. 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
South Atlantic Ocean. The parsed report position is -23.183, -42.150. 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

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. HYDROLANT 1683/23 · this notice2023-07-26 · Archived notice
  2. HYDROLANT 1684/232023-07-26 · Archived notice
Compare all 2 notices, changes and original texts →

Current notices and reporting history in the South Atlantic Ocean →

issued
2023-07-26 19:18Z
status
Archived notice
self-cancels
2023-07-29 19:15Z
authority
MRCC RIO 27/23 261857Z JUL 23.
issued by
MRCC RIO
sea
South Atlantic Ocean
position
-23.183, -42.150
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL.
DNC 01.
1. DERELICT S/V ADRIFT IN 23-11.00S 042-09.00W
   ON 26 JUL. REPORTS TO MRCC RIO,
   EMAIL: MRCCRIO@MARINHA.MIL.BR.
2. CANCEL THIS MSG 291915Z JUL 23.

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.
Derelict
An abandoned vessel still afloat and drifting, with no one on board.
Adrift
Loose and moving with wind and current — a vessel, container, buoy, log or anything else no longer secured.
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.
MRCC (Maritime Rescue Coordination Centre)
A rescue coordination centre for maritime cases only, such as MRCC Fort-de-France or MRCC Vietnam.
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.

All warning terms →

Collected reports in this area · derelict & adrift vessels

93 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
24

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

6 derelict & adrift vessels listed in force · see all

Record snapshot 2026-10-01 10:16Z; source collection times vary.

Derelicts

Abandoned, disabled or drifting vessels. All current derelict & adrift vessels →

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.