Exercises

Hazardous operations 0300Z to 0430Z daily 23 thru 25 may in area bound by 42-44.37N 031-32.30E, 42-42.88N…

Black Sea · HYDROLANT 1107/23

What this record establishes

Archived notice · 2023-05-25 05:30Z

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 47/23 191737Z MAY 23.. Issued 2023-05-19 20:50Z. 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 · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2023-05-23 03:00Z	2023-05-23 04:30Z	—	1 h 30
2023-05-24 03:00Z	2023-05-24 04:30Z	—	1 h 30
2023-05-25 03:00Z	2023-05-25 04:30Z	—	1 h 30

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

issued: 2023-05-19 20:50Z
status: Archived notice
self-cancels: 2023-05-25 05:30Z
authority: TURKEY 47/23 191737Z MAY 23.
issued by: TURKEY
sea: Black Sea
position: 42.104, 36.526
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 0300Z TO 0430Z DAILY
   23 THRU 25 MAY IN AREA BOUND BY
   42-44.37N 031-32.30E, 42-42.88N 034-28.42E,
   42-43.00N 034-48.22E, 42-37.00N 037-42.92E,
   42-31.98N 037-59.63E, 41-35.35N 041-01.92E,
   41-10.75N 040-50.80E, 41-04.83N 040-29.55E,
   41-36.63N 037-32.33E, 41-45.48N 036-40.27E,
   42-01.23N 035-05.78E, 42-03.08N 034-22.65E,
   42-06.27N 032-46.82E, 42-05.37N 032-16.65E,
   42-12.90N 031-43.20E.
2. CANCEL THIS MSG 250530Z MAY 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.
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.
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.

All warning terms →

Collected reports in this area · military exercises

696 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

Worldwide in the collected sources

31 military exercises listed in force · see all

Record snapshot 2026-09-30 05:53Z; 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.