Exercises

Hazardous operations 0001Z to 0200Z daily 11 and 13 aug in area bound by 41-58.57N 028-02.00E, 41-58.78N…

Black Sea · HYDROLANT 1735/23

What this record establishes

Archived notice · 2023-08-13 03:00Z

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 66/23 041020Z AUG 23.. Issued 2023-08-05 03:07Z. 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
2023-08-05 03:07Z
status
Archived notice
self-cancels
2023-08-13 03:00Z
authority
TURKEY 66/23 041020Z AUG 23.
issued by
TURKEY
sea
Black Sea
position
42.238, 33.177
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 0001Z TO 0200Z DAILY
   11 AND 13 AUG IN AREA BOUND BY
   41-58.57N 028-02.00E, 41-58.78N 028-19.45E,
   42-06.97N 029-00.18E, 42-32.33N 030-04.50E,
   42-48.00N 030-45.00E, 42-46.83N 031-01.97E,
   42-45.98N 034-47.53E, 42-43.90N 036-15.98E,
   42-40.93N 037-40.00E, 42-31.03N 038-15.48E,
   42-16.42N 038-08.40E, 41-38.83N 036-11.23E,
   41-47.12N 035-57.82E, 41-40.87N 035-32.13E,
   41-50.42N 035-18.23E, 41-54.47N 035-12.17E,
   42-00.82N 035-08.15E, 42-00.65N 035-13.03E,
   42-02.45N 035-11.55E, 42-02.50N 035-10.10E,
   42-01.53N 035-08.08E, 42-00.45N 035-03.42E,
   42-03.83N 035-03.08E, 42-05.63N 035-00.98E,
   42-05.97N 034-56.55E, 42-00.63N 034-53.08E,
   42-01.27N 034-29.52E, 42-04.32N 033-20.65E,
   41-46.07N 032-13.12E, 41-33.45N 031-00.40E,
   41-41.00N 028-38.77E, 41-42.00N 028-02.83E.
2. CANCEL THIS MSG 130300Z AUG 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

878 within 180 nm since 1999 · 2 in the last 12 months · 1 listed in force now

99
00
05
10
15
20
25
26

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

Worldwide in the collected sources

31 military exercises listed in force · see all

Record snapshot 2026-09-29 22:43Z; 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.