Depths between 5.5 and 12.6 meters reported at multiple positions in Western North Atlantic off Brazil.
North Atlantic Ocean · HYDROLANT 2378/23
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 V COASTAL 594/23 192142Z OCT 23.. Issued 2023-10-19 21:52Z. 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
- North Atlantic Ocean. The parsed report position is 1.167, -49.539. 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.
- HYDROLANT 2362/232023-10-18 · Cancelled notice
- HYDROLANT 2378/23 · this notice2023-10-19 · Cancelled notice
- HYDROLANT 2379/232023-10-19 · Cancelled notice
- HYDROLANT 2453/232023-10-27 · Cancelled notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2023-10-19 21:52Z
- status
- Cancelled notice
- authority
- NAVAREA V COASTAL 594/23 192142Z OCT 23.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V COASTAL
- sea
- North Atlantic Ocean
- position
- 1.167, -49.539
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z
Original warning text
WESTERN NORTH ATLANTIC. BRAZIL. DNC 01. DEPTHS REPORTED: A. 9.7 METERS IN 01-06.62N 049-41.33W. B. 5.5 METERS IN 01-06.02N 049-38.70W. C. 8.9 METERS IN 01-06.79N 049-37.72W. D. 8.8 METERS IN 01-05.09N 049-34.68W. E. 6.4 METERS IN 01-06.12N 049-34.35W. F. 12.0 METERS IN 01-08.72N 049-33.13W. G. 9.3 METERS IN 01-14.76N 049-32.79W. H. 12.6 METERS IN 01-11.15N 049-30.89W. I. 11.8 METERS IN 01-10.75N 049-27.25W. J. 11.8 METERS IN 01-13.46N 049-26.16W. K. 12.3 METERS IN 01-12.87N 049-29.51W. L. 12.6 METERS IN 01-13.00N 049-27.45W. M. 11.9 METERS IN 01-14.67N 049-26.80W.
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.
- Shoal / reported depth
- Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
- 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.
Collected reports in this area · wrecks & obstructions
19 within 180 nm since 2003 · 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.
- Dangerous wreck in 00-24.48N 047-50.68W2026-02-10
- Depths reported: a. 8.8 meters in 01-02.59N 049-41.78W2023-10-27
- Depths reported: a. 7.2 meters in 01-15.81N 049-32.17W2023-10-19
- Depths reported: a. 8.8 meters in 01-25.61N 049-11.14W2023-10-18
- Depths reported: a. 3.1 meters in 00-21.99S 047-58.30W2023-05-26
- Depths reported: a. 9.6 meters in 00-24.85S 048-04.63W2023-05-26
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
38 wrecks & obstructions listed in force · see all
Record snapshot 2026-10-01 10:06Z; source collection times vary.
Wrecks
Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →
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.