Restricted

Navigation prohibited 130900Z mar until further notice in area bound by 44-23.2N 033-46.6E, 44-23.2N…

Black Sea · HYDROLANT 881/18

What this record establishes

Archived notice · 2018-03-23 14:27Z

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 247/18 121714Z MAR 18.. Issued 2018-03-12 17:16Z. 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: Black 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 Black Sea →

issued: 2018-03-12 17:16Z
status: Archived notice
authority: NAVAREA III 247/18 121714Z MAR 18.
NAVAREA: NAVAREA III · named as the source of this relay
sea: Black Sea
position: 44.353, 33.759
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BLACK SEA.
UKRAINE.
DNC 10.
CHART 55140.
NAVIGATION PROHIBITED 130900Z MAR UNTIL FURTHER
NOTICE IN AREA BOUND BY
44-23.2N 033-46.6E, 44-23.2N 033-47.9E,
44-19.2N 033-47.9E, 44-19.2N 033-43.2E,
44-23.2N 033-43.2E, 44-23.2N 033-45.5E.

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.
Chart reference: The number of the nautical chart on which the reported position lies.
Navigation prohibited: Ships may not enter or pass through the area, or a port is closed to traffic.
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.
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.

All warning terms →

Collected reports in this area · restricted areas & port closures

58 within 180 nm since 2005 · 1 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

Worldwide in the collected sources

2 restricted areas & port closures listed in force · see all

Record snapshot 2026-10-02 07:18Z; source collection times vary.

Restricted

Navigation prohibited, exclusion and security zones, ports closed to traffic. All current restricted areas & port closures →

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.