Surveys
Underwater operations in progress until 31 dec by M/V bigfoot in area bound by 44-25.85N 028-46.19E,…
Black Sea · HYDROLANT 2548/20
What this record establishes
Archived notice · 2020-09-09 11:01Z
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) · NAVAREA III 1127/20 180001Z AUG 20.. Issued 2020-08-18 00:46Z. 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
- Black Sea. 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
- issued
- 2020-08-18 00:46Z
- status
- Archived notice
- authority
- NAVAREA III 1127/20 180001Z AUG 20.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Black Sea
- position
- 44.311, 29.718
- vessel
- M/V BIGFOOT
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BLACK SEA. ROMANIA. DNC 10. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 31 DEC BY M/V BIGFOOT IN AREA BOUND BY 44-25.85N 028-46.19E, 44-25.73N 028-46.62E, 44-25.72N 028-47.59E, 44-26.05N 028-48.84E, 44-26.31N 028-48.71E, 44-27.30N 028-52.48E, 44-29.46N 029-00.92E, 44-31.89N 029-22.25E, 44-30.93N 029-29.29E, 44-30.65N 029-30.63E, 44-30.18N 029-31.68E, 44-29.39N 029-32.66E, 44-09.78N 029-53.43E, 44-05.05N 029-58.30E, 44-12.23N 030-08.95E, 44-11.48N 030-10.04E, 44-04.26N 029-59.33E, 44-03.76N 029-59.98E, 44-03.02N 029-58.88E, 44-29.45N 029-30.56E, 44-29.61N 029-30.20E, 44-29.85N 029-29.11E, 44-30.80N 029-22.07E, 44-28.39N 029-01.16E, 44-26.28N 028-53.00E, 44-25.30N 028-49.23E, 44-25.54N 028-49.12E, 44-25.47N 028-48.84E, 44-25.33N 028-48.84E, 44-25.17N 028-48.07E, 44-25.18N 028-47.72E, 44-25.05N 028-47.65E, 44-25.19N 028-47.15E, 44-25.19N 028-46.60E, 44-25.45N 028-46.19E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 01 JAN 21.
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.
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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.
Collected reports in this area · survey operations
207 within 180 nm since 1999 · 14 in the last 12 months · 6 listed in force now
99
00
05
10
15
20
25
26
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.
- Survey operations in progress until 01 nov by M/V kobi ruegg in area bound by 44-25.56N 028-47.44E,…2026-09-30
- 1- drilling operations by yildirim rig (imo 9705469, mmsi 271053959), supported by ertugrul bey, aybuke,…2026-09-12
- Survey operations 08 sep thru 01 oct by M/V karadeniz arastirma, M/V barbaros hayreddin pasa and M/V TANUX-1…2026-09-07
- Drilling operations by fatih platform (imo 95037702026-09-03
- Drilling operations by yavuz rig (imo 9503768, mmsi 271046765) supported by osman bey, aybuke, florya,…2026-08-27
- Drilling operations by the kanuni platform (imo 95412032026-08-17
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
- Due to the presence of mines, all vessels approaching and departing romanian ports are encouraged to use the…Mines · 20.9 nm
- 1- neptun alpha production platform has been established at the central coordinate point: 44-02.85N 030-35.25EStructures · 40.6 nm
- Fog signal at constanta outer harbor light 44-08.61N 028-40.37E inoperativeNav aids · 46.1 nm
- Underwater operations 05 jan 25 thru 31 dec 26 in area bound by 44-04.40N 030-34.13E, 44-02.40N 030-30.50E,…Surveys · 46.5 nm
- Mines reported in area within five miles of 45-07.10N 030-09.70EMines · 52.1 nm
- War risk area, in northwestern part of black sea to northern of line 45-12.2N 029-41.1E 45-11.5N 029-41.4E…War risk · 71.8 nm
- The coordinator of coastal alerts of ukraine has declared the following coastal approach instructions for…War risk · 93.9 nm
- Ukrainian coastal warning coordinator has declared the following coastal aproach instructions for entry or…Other · 95 nm
- Mining operations in progress until further notice in areas bound by: a. 46-22.50N 030-45.10E, 46-20.20N…Mines · 98.2 nm
- Drilling operations by yavuz rig (imo 9503768, mmsi 271046765) supported by osman bey, aybuke, florya,…Surveys · 108.6 nm
- 1- drilling operations by yildirim rig (imo 9705469, mmsi 271053959), supported by ertugrul bey, aybuke,…Surveys · 110.2 nm
- 1- drilling operations by abdulhamid han rig (imo 9705093Surveys · 112 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-02 15:42Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.