The Humber Met Mast in the North Sea off England is unlit and its navigational aids are inoperative; HYDROLANT 351/24 is cancelled.
North Sea · HYDROLANT 673/24
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) · WZ 249/24 011601Z APR 24.. Issued 2024-04-01 16:17Z. 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 Sea. The parsed report position is 53.178, 2.985. 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
- Humber met mast 53-10.70N 002-59.10E unlit and navaids inoperativecancelled by this notice
- issued
- 2024-04-01 16:17Z
- status
- Cancelled notice
- authority
- WZ 249/24 011601Z APR 24.
- issued by
- WZ
- sea
- North Sea
- position
- 53.178, 2.985
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z
Original warning text
NORTH SEA. ENGLAND. DNC 20. 1. HUMBER MET MAST 53-10.70N 002-59.10E UNLIT AND NAVAIDS INOPERATIVE. 2. CANCEL HYDROLANT 351/24.
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.
- 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.
- Unlit / extinguished
- A light, buoy or structure that is not showing its charted light.
- Inoperative / unreliable / off air
- An aid or radio service is not working as charted or published.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · aids-to-navigation notices
1773 within 180 nm since 1997 · 4 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.
- East goodwin light vessel 51-13.30N 001-36.40E, discontinued2026-09-27
- Fog signal at dungeness light 50-54.80N 000-58.60E inoperative2026-08-27
- East goodwin light vessel 51-13.30N 001-36.40E2026-08-16
- Mf dsc and r/t services off air at: a. bawdsey 51-59.60N 001-24.50E2026-08-01
- All navigational aids at platform katy 54-24.20N 002-39.50E inoperative2024-04-19
- Bassurelle buoy 50-32.70N 000-57.70E missing2024-04-16
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
137 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-02 00:48Z; source collection times vary.
Nav aids
Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →
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.