Surveys

Survey operations are in progress until further notice in a bound area of the Persian Gulf off Saudi Arabia; vessels are requested to give a wide berth.

Persian Gulf · HYDROPAC 2717/26

What this record establishes

Cancelled notice · 2026-09-23 14:45Z

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 in-force warnings (DailyMem*.txt). Issued 2026-09-18 20:44Z. First collected 2026-09-23 15:02Z; last seen in collection 2026-09-24 12:17Z. 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: 2026-09-18 20:44Z
status: Cancelled notice
sea: Persian Gulf
position: 28.656, 48.711
source: NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-23 15:02Z

Original warning text

PERSIAN GULF.
SAUDI ARABIA.
SURVEY OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE IN AREA BOUND BY
28-48.72N 048-50.06E, 28-42.06N 048-55.57E,
28-30.44N 048-34.57E, 28-34.33N 048-29.94E,
28-35.19N 048-29.08E.
WIDE BERTH REQUESTED.

Reading this warning

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.

All warning terms →

Collected reports in this area · survey operations

35 within 180 nm since 2001 · 4 in the last 12 months · 1 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.

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

Met tower 28-46.0N 048-26.1E temporarily replaced by yellow buoy, FL(4) 15 sec 5MOther · 16 nm
Navigation prohibited until further notice in area within 600 meters of 28-52.49N 048-21.63ERestricted · 22.7 nm
Dangerous wreck marked by buoy in 29-05.49N 048-22.09EWrecks · 31.8 nm
Navigation prohibited until further notice in area within 600 meters of 29-13.10N 048-44.42ERestricted · 33.8 nm
Barge dream 1 sank in 29-14.06N 048-41.22EWrecks · 34.8 nm
Survey operations 10 aug until further notice by M/V vision 2 in: a. 29-03.09N 048-10.06ESurveys · 36.3 nm
Odas buoy relocated to 28-49.63N 050-42.93ENav aids · 106 nm

Worldwide in the collected sources

50 survey operations listed in force · see all

Record snapshot 2026-09-24 12:21Z; 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.