Surveys

Survey operations in progress until 30 apr 24 in area bound by 28-35.42N 049-38.40E, 28-37.14N 049-35.98E,…

Persian Gulf · HYDROPAC 275/24

What this record establishes

Archived notice · 2024-05-01 00:01Z

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 IX 37/24 231441Z JAN 24.. Issued 2024-01-23 15:48Z. 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.

Current notices and reporting history in the Persian Gulf →

issued
2024-01-23 15:48Z
status
Archived notice
self-cancels
2024-05-01 00:01Z
authority
NAVAREA IX 37/24 231441Z JAN 24.
NAVAREA
NAVAREA IX · named as the source of this relay
sea
Persian Gulf
position
28.430, 49.458
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

PERSIAN GULF.
SAUDI ARABIA.
DNC 10.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 30 APR 24
   IN AREA BOUND BY
   28-35.42N 049-38.40E, 28-37.14N 049-35.98E,
   28-40.72N 049-33.37E, 28-40.60N 049-33.05E,
   28-15.04N 049-15.98E, 28-13.65N 049-18.64E,
   28-13.33N 049-20.06E, 28-12.62N 049-23.14E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 010001Z MAY 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.
Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
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.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · survey operations

105 within 180 nm since 2001 · 6 in the last 12 months · 2 listed in force now

01
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.

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

Worldwide in the collected sources

54 survey operations listed in force · see all

Record snapshot 2026-09-29 09:07Z; 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.