Surveys

Survey operations in progress until 04 apr by M/V pourquoi pas in vicinity of trackline joining 36-02.71N…

Alboran Sea · HYDROLANT 1043/19

What this record establishes

Archived notice · 2019-04-05 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 III 394/19 021213Z APR 19.. Issued 2019-04-02 12:54Z. 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: Alboran Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Alboran Sea →

issued: 2019-04-02 12:54Z
status: Archived notice
authority: NAVAREA III 394/19 021213Z APR 19.
NAVAREA: NAVAREA III · named as the source of this relay
sea: Alboran Sea
position: 36.309, -3.182
vessel: M/V POURQUOI PAS · 108 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
ALBORAN SEA.
SPAIN.
DNC 08.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 04 APR
   BY M/V POURQUOI PAS
   IN VICINITY OF TRACKLINE JOINING
   36-02.71N 003-04.97W, 36-21.49N 003-53.48W,
   36-26.97N 003-49.59W, 36-03.01N 002-38.73W,
   36-11.27N 002-34.27W, 36-28.99N 003-26.02W,
   36-35.97N 003-21.97W, 36-19.80N 002-33.85W.
   WIDE BERTH REQUESTED
2. CANCEL THIS MSG 05 APR 19.

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.
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.
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.

All warning terms →

Collected reports in this area · survey operations

72 within 180 nm since 1999 · 0 in the last 12 months · 0 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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-02 03:43Z; 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.