Surveys

Survey operations 12 thru 17 aug by M/V urbano in area bound by 44-23.545N 008-59.008E, 44-23.186N…

Ligurian Sea · HYDROLANT 2483/20

What this record establishes

Archived notice · 2020-08-18 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 1117/20 111056Z AUG 20.. Issued 2020-08-11 11:02Z. 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
Ligurian Sea. 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 Ligurian Sea →

issued
2020-08-11 11:02Z
status
Archived notice
authority
NAVAREA III 1117/20 111056Z AUG 20.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Ligurian Sea
position
43.826, 8.479
vessel
M/V URBANO
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
LIGURIAN SEA.
ITALY.
DNC 08.
1. SURVEY OPERATIONS 12 THRU 17 AUG BY
   M/V URBANO IN AREA BOUND BY
   44-23.545N 008-59.008E, 44-23.186N 008-59.071E,
   44-23.157N 008-59.076E, 44-23.092N 008-59.088E,
   44-22.583N 008-59.041E, 44-22.549N 008-59.027E,
   44-22.315N 008-58.935E, 44-22.161N 008-58.867E,
   44-22.074N 008-58.829E, 44-21.726N 008-58.676E,
   44-21.496N 008-58.575E, 44-21.125N 008-58.411E,
   44-21.004N 008-58.358E, 44-19.642N 008-58.489E,
   44-18.593N 008-58.589E, 44-17.263N 008-58.716E,
   44-16.002N 008-58.598E, 44-14.404N 008-58.447E,
   44-12.057N 008-56.866E, 44-10.331N 008-55.704E,
   44-09.585N 008-55.202E, 44-09.584N 008-55.201E,
   44-09.495N 008-55.141E, 44-06.155N 008-51.480E,
   44-03.011N 008-49.633E, 44-00.859N 008-48.370E,
   43-57.207N 008-45.795E, 43-55.174N 008-43.338E,
   43-54.860N 008-42.728E, 43-53.609N 008-40.294E,
   43-52.152N 008-38.446E, 43-49.180N 008-34.677E,
   43-44.596N 008-30.022E, 43-43.885N 008-29.299E,
   43-39.305N 008-24.655E, 43-25.558N 008-06.360E,
   43-23.380N 008-03.468E, 43-19.698N 007-58.583E,
   43-18.060N 007-54.822E, 43-16.540N 007-51.336E,
   43-14.466N 007-46.580E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 18 AUG 20.

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.

All warning terms →

Collected reports in this area · survey operations

174 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
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 2026-10-02 16:22Z; 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.