Surveys

Oceanographic operations by M/V pelagia: a. 220030Z to 222000Z may in area bound by 42-27.5N 003-50.0E,…

Mediterranean Sea - Western Basin · HYDROLANT 877/04

What this record establishes

Archived notice · 2004-05-25 09:50Z

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 268/04 212334Z MAY 04. Issued 2004-05-22 00:01Z. 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
Mediterranean Sea - Western Basin. 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 Mediterranean Sea - Western Basin →

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
2004-05-22 00:30Z2004-05-22 20:00Z—19 h 30
2004-05-24 00:01Z2004-05-25 18:00Z—41 h 59

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2004-05-22 00:01Z
status
Archived notice
self-cancels
2004-05-25 19:00Z
authority
NAVAREA III 268/04 212334Z MAY 04
NAVAREA
NAVAREA III · named as the source of this relay
sea
Mediterranean Sea - Western Basin
position
42.381, 3.593
vessel
M/V PELAGIA · 26 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. OCEANOGRAPHIC OPERATIONS BY M/V PELAGIA:
   A. 220030Z TO 222000Z MAY IN AREA BOUND BY
      42-27.5N 003-50.0E, 42-31.5N 003-41.5E,
      42-23.2N 003-19.7E, 42-17.0N 003-27.0E,
      42-14.0N 003-35.5E, 42-15.9N 003-40.0E.
   B. 23 MAY IN AREA BETWEEN
      42-10N 42-25N AND 003-15E 003-55E.
   C. 240001Z MAY TO 251800Z MAY
      IN AREA BETWEEN
      42-00N 42-25N AND 003-15E 004-25E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 251900Z MAY.

Reading this warning

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.
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.

All warning terms →

Collected reports in this area · survey operations

59 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
23

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

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

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-03 06:33Z; 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.