Shoal water reported in area bound by 51-25.6N 003-39.5W, 51-25.0N 003-39.7W, 51-25.5N 003-43.5W, 51-26.1N…
Bristol Channel · HYDROLANT 1629/18
What this record establishes
Archived notice · 2019-01-04 14:30Z
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) · WZ 603/18 241110Z MAY 18.. Issued 2018-05-24 11:31Z. 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
- Bristol Channel. 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
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 2331/172017-07-28 · Archived notice
- HYDROLANT 2770/172017-09-08 · Archived notice
- HYDROLANT 1629/18 · this notice2018-05-24 · Archived notice
Current notices and reporting history in the Bristol Channel →
- issued
- 2018-05-24 11:31Z
- status
- Archived notice
- authority
- WZ 603/18 241110Z MAY 18.
- issued by
- WZ
- sea
- Bristol Channel
- position
- 51.426, -3.691
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BRISTOL CHANNEL. WALES. DNC 20. CHART 35024. SHOAL WATER REPORTED IN AREA BOUND BY 51-25.6N 003-39.5W, 51-25.0N 003-39.7W, 51-25.5N 003-43.5W, 51-26.1N 003-43.1W.
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.
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Shoal / reported depth
- Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
- 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.
Collected reports in this area · wrecks & obstructions
156 within 180 nm since 1998 · 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.
- Dangerous wreck in 54-12.68N 004-16.44W2024-05-02
- Dangerous wreck in 50-32.38N 003-11.79W2024-04-17
- Dangerous wreck in 54-12.68N 004-16.44W2024-03-21
- Dangerous wreck in 54-12.68N 004-16.44W2024-03-21
- Dangerous wreck in 54-12.70N 004-16.40W2024-02-08
- Dangerous wreck reported in 50-32.90N 001-08.90W2023-11-12
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 2026-10-03 07:51Z; 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.