Surveys
Survey operations in progress until further notice by M/V halul 53 along tracklines joining: a. 25-56.62N…
Persian Gulf · HYDROPAC 644/23
What this record establishes
Archived notice · 2023-04-29 15:32Z
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 IX 92/23 251537Z FEB 23.. Issued 2023-02-25 16:27Z. 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
- Persian Gulf. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Overturned vessel in vicinity 03-01.00N 092-25.00Wcancelled by this notice
- Cancel HYDROPAC 644/23 and this msg, operations completedlater cancellation notice
- issued
- 2023-02-25 16:27Z
- status
- Archived notice
- authority
- NAVAREA IX 92/23 251537Z FEB 23.
- NAVAREA
- NAVAREA IX · named as the source of this relay
- sea
- Persian Gulf
- position
- 25.569, 52.886
- vessel
- M/V HALUL 53 · 5 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
PERSIAN GULF.
QATAR TO U.A.E.
DNC 10.
1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE
BY M/V HALUL 53 ALONG TRACKLINES JOINING:
A. 25-56.62N 051-31.25E, 25-59.22N 051-32.78E,
25-57.08N 051-48.39E, 25-52.38N 052-02.00E,
25-23.11N 053-01.60E, 25-25.66N 053-27.76E,
24-50.00N 054-36.10E, 24-45.45N 054-40.17E.
B. 25-56.52N 051-32.18E, 26-06.28N 051-55.03E,
26-12.25N 052-07.25E, 26-17.32N 052-12.24E,
26-19.34N 052-14.67E.
2. CANCEL HYDROPAC 641/23(22).
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.
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
Collected reports in this area · survey operations
458 within 180 nm since 1999 · 5 in the last 12 months · 3 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 18 sep until further notice by M/V fugro resilience in area bound by 26-33.31N 051-04.86E,…2026-09-17
- Survey operations in progress until 05 sep by M/V furgo proteus in areas bound by: a. 26-33.34N 051-03.56E,…2026-08-04
- Survey operations in progress until further notice by M/V halul 41 in area bound by 26-23.34N 051-47.10E,…2026-01-30
- Survey operations in progress until 31 dec by M/V astro aquila in area bound by 26-42.50N 051-53.50E,…2025-11-27
- Underwater operations in progress until further notice by M/V constructor in area bound by 26-28.58N…2025-10-28
- Survey operations in progress until 31 dec by M/V HALUL-51 with submersible along tracklines joining: a.…2025-10-01
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
- Foul ground, anchor with 2.5 shackle chain reported in 25-07.69N 052-53.09EWrecks · 26.5 nm
- Zaqqum buoy in 25-06.56N 053-25.06ENav aids · 39.9 nm
- Survey operations 18 sep until further notice by M/V fugro resilience in area bound by 26-33.31N 051-04.86E,…Surveys · 63.5 nm
- Survey operations in progress until further notice by M/V halul 41 in area bound by 26-23.34N 051-47.10E,…Surveys · 64.5 nm
- RACON at dalma buoy 24-32.51N 052-27.85E inoperativeNav aids · 65.8 nm
- Pipeline operations 10 aug thru 10 nov by vessel barge derrick barge 30 in area bound by 26-31.70N…Cable ops · 66.3 nm
- Partially submerged wreck in vicinity 25-11.64N 054-10.12EWrecks · 73.1 nm
- Pipeline operations 18 sep until further notice by barge mc dermott in area bound by 25-59.10N 051-36.60E,…Cable ops · 75.7 nm
- Bh jacket light fl(r) 4 sec temporarily established in 26-38.41N 051-56.90ENav aids · 81.8 nm
- Mooring buoy established in 26-38.47N 051-55.82ENav aids · 82.4 nm
- Wave rider buoy, fl 5 y 10 sec, temporarily established in 26-39.57N 051-57.22ENav aids · 82.5 nm
- Underwater operations in progress until further notice by M/V HYSY289 in area bound by 26-41.99N 051-53.26E,…Surveys · 82.9 nm
Worldwide in the collected sources
55 survey operations listed in force · see all
Record snapshot 2026-10-02 07:47Z; 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.