Survey operations 12 thru 18 oct by M/V dalla along tracklines joining: a. 41-19.18N 009-18.43E, 41-16.41N…
Mediterranean Sea - Western Basin · HYDROLANT 3105/20
What this record establishes
Archived notice · 2020-10-19 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 1355/20 130022Z OCT 20.. Issued 2020-10-13 00:32Z. 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 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 Mediterranean Sea - Western Basin →
- issued
- 2020-10-13 00:32Z
- status
- Archived notice
- authority
- NAVAREA III 1355/20 130022Z OCT 20.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Mediterranean Sea - Western Basin
- position
- 41.100, 8.845
- vessel
- M/V DALLA · 2 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN MEDITERRANEAN SEA.
TYRRHENIAN SEA.
SARDINIA.
DNC 08.
1. SURVEY OPERATIONS 12 THRU 18 OCT BY
M/V DALLA ALONG TRACKLINES JOINING:
A. 41-19.18N 009-18.43E, 41-16.41N 009-13.65E,
41-18.56N 009-11.57E, 41-18.28N 009-10.17E,
41-18.82N 009-08.56E, 41-14.22N 009-05.85E,
41-10.87N 009-02.01E, 41-15.89N 009-03.14E,
41-15.41N 008-59.43E, 41-08.95N 008-57.92E,
41-06.52N 008-53.98E, 41-15.35N 008-55.87E,
41-14.97N 008-52.57E, 41-03.39N 008-50.38E,
40-59.57N 008-44.38E, 41-14.46N 008-47.50E,
41-13.76N 008-41.74E, 40-58.62N 008-38.37E,
40-53.77N 008-32.12E, 41-05.30N 008-35.22E,
41-05.81N 008-30.01E, 40-54.03N 008-24.79E,
40-55.20N 008-20.08E, 41-10.02N 008-25.46E.
B. 41-19.18N 009-18.43E, 41-18.56N 009-11.57E,
41-18.82N 009-08.56E, 41-08.95N 008-57.92E,
41-03.39N 008-50.38E, 41-13.76N 008-41.74E,
40-58.62N 008-38.37E, 41-05.81N 008-30.01E,
40-54.03N 008-24.79E, 40-55.21N 008-20.08E.
C. 40-55.93N 009-44.42E, 40-56.87N 009-43.13E,
40-57.87N 009-41.77E, 40-59.28N 009-39.84E,
40-57.80N 009-39.68E, 40-56.76N 009-41.00E,
40-55.33N 009-42.82E, 40-54.72N 009-41.71E,
40-55.84N 009-40.19E, 40-56.84N 009-38.83E,
40-58.59N 009-36.45E, 40-57.29N 009-36.17E,
40-56.46N 009-36.99E, 40-55.55N 009-36.35E,
40-56.38N 009-35.29E, 40-55.34N 009-34.69E,
40-55.36N 009-33.46E, 40-55.40N 009-31.83E.
WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 19 OCT 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.
- 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.
Collected reports in this area · survey operations
222 within 180 nm since 1998 · 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.
- Survey operations in progress until 30 oct by vessel anteos in 39-19.79N 007-50.60E2024-09-03
- Survey operations in progress until 30 jun by M/V ng driller along trackline joining 39-13.99N 007-49.47E,…2024-04-24
- Survey operations in progress until 30 aug by M/V durable along trackline joining 41-22.68N 006-04.83E,…2024-04-24
- Underwater operations in progress until further notice by M/V joides resolution in: a. 40-11.03N 012-42.49E2024-02-16
- Survey operations in progress until 15 apr by M/V ng driller in: a. 39-13.99N 007-49.48E2024-02-01
- Survey operations 22 jul thru 13 aug by M/V tethys II, M/V l`europe, and M/V sagitta III in area bound by…2023-07-20
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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 08:49Z; 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.