Exercises

Hazardous operations 062101Z to 182059Z feb in area bound by 42-01.58N 035-10.75E, 42-15.77N 035-11.78E,…

Black Sea · HYDROLANT 283/23

What this record establishes

Archived notice · 2023-02-18 21:59Z

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) · TURKEY 12/23 041046Z FEB 23.. Issued 2023-02-04 12:09Z. 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 →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2023-02-06 21:01Z	2023-02-18 20:59Z	—	287 h 58

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

issued: 2023-02-04 12:09Z
status: Archived notice
self-cancels: 2023-02-18 21:59Z
authority: TURKEY 12/23 041046Z FEB 23.
issued by: TURKEY
sea: Black Sea
position: 41.976, 37.615
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BLACK SEA.
TURKEY.
DNC 10.
1. HAZARDOUS OPERATIONS 062101Z TO 182059Z FEB
   IN AREA BOUND BY
   42-01.58N 035-10.75E, 42-15.77N 035-11.78E,
   42-30.98N 037-50.92E, 42-33.37N 038-14.37E,
   42-25.42N 038-32.17E, 42-05.53N 039-32.85E,
   41-42.43N 039-34.42E, 41-28.97N 039-31.90E,
   41-21.00N 039-14.10E, 41-25.28N 038-30.33E,
   41-52.58N 035-13.88E.
2. CANCEL THIS MSG 182159Z FEB 23.

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.
Hazardous operations: NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
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.
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 · military exercises

491 within 180 nm since 1999 · 2 in the last 12 months · 1 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

Hazardous operations 1000Z to 1130Z daily 30 sep thru 02 oct in area bound by 41-10.77N 040-50.82E,…Exercises · 52.4 nm
Shooting exercise days 30 sep 26 to 02 oct 26 from 1000 to 1130 UTC in area delimited by: 41-10.77N…Other · 52.4 nm
Survey operations 26 sep thru 03 jul 27 by M/V karadeniz arastirma, M/V barbaros hayreddin pasa and M/V…Surveys · 93.2 nm

Worldwide in the collected sources

31 military exercises listed in force · see all

Record snapshot 2026-09-29 20:15Z; source collection times vary.

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

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.