Surveys
Survey operations 27 mar until further notice by M/V pacific grouse in areas bound by: a. 26-06.38N…
Persian Gulf · HYDROPAC 1029/23
What this record establishes
Archived notice · 2023-05-21 15:35Z
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 137/23 261644Z MAR 23.. Issued 2023-03-26 16:53Z. 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 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
- Survey operations 27 mar until further notice by M/V pacific grouse in areas bound by: a. 26-05.16N…cancelled by this notice
- Cancel HYDROPAC 1029/23, 1683/23 and this msg, operations completedlater cancellation notice
- issued
- 2023-03-26 16:53Z
- status
- Archived notice
- authority
- NAVAREA IX 137/23 261644Z MAR 23.
- NAVAREA
- NAVAREA IX · named as the source of this relay
- sea
- Persian Gulf
- position
- 25.816, 52.566
- vessel
- M/V PACIFIC GROUSE · 5 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
PERSIAN GULF.
U.A.E.
DNC 02, DNC 10.
1. SURVEY OPERATIONS 27 MAR UNTIL FURTHER NOTICE
BY M/V PACIFIC GROUSE IN AREAS BOUND BY:
A. 26-06.38N 052-39.91E, 26-07.16N 052-41.14E,
26-05.16N 052-42.69E, 26-04.39N 052-41.46E.
B. 25-40.16N 052-17.56E, 25-34.13N 052-23.86E,
25-54.57N 052-48.94E, 26-04.19N 052-43.26E.
WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 1028/23.
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.
- 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.
- 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
447 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
- Survey operations in progress until further notice by M/V halul 41 in area bound by 26-23.34N 051-47.10E,…Surveys · 41.9 nm
- Pipeline operations 10 aug thru 10 nov by vessel barge derrick barge 30 in area bound by 26-31.70N…Cable ops · 44 nm
- Survey operations 18 sep until further notice by M/V fugro resilience in area bound by 26-33.31N 051-04.86E,…Surveys · 44.6 nm
- Foul ground, anchor with 2.5 shackle chain reported in 25-07.69N 052-53.09EWrecks · 44.7 nm
- Pipeline operations 18 sep until further notice by barge mc dermott in area bound by 25-59.10N 051-36.60E,…Cable ops · 54.1 nm
- Bh jacket light fl(r) 4 sec temporarily established in 26-38.41N 051-56.90ENav aids · 59.6 nm
- Wave rider buoy, fl 5 y 10 sec, temporarily established in 26-39.57N 051-57.22ENav aids · 60.4 nm
- Underwater operations in progress until further notice by M/V HYSY289 in area bound by 26-41.99N 051-53.26E,…Surveys · 60.8 nm
- Zaqqum buoy in 25-06.56N 053-25.06ENav aids · 62.7 nm
- RACON at dalma buoy 24-32.51N 052-27.85E inoperativeNav aids · 76.7 nm
- Partially submerged wreck in vicinity 25-11.64N 054-10.12EWrecks · 94.5 nm
- 12.9 meter depths reported in borouge channel 24-09.00N 052-45.20EWrecks · 100.5 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 00:46Z; 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.