Exercises

Hazardous operations 08 thru 12 apr and 15 thru 19 apr in area bound by 44-25.00N 030-48.00E, 43-05.00N…

Black Sea · HYDROLANT 635/24

What this record establishes

Archived notice · 2024-04-20 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) · ROMANIA 25/24 271201Z MAR 24.. Issued 2024-03-27 19:06Z. 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
2024-03-27 19:06Z
status
Archived notice
self-cancels
2024-04-20 00:01Z
authority
ROMANIA 25/24 271201Z MAR 24.
issued by
ROMANIA
sea
Black Sea
position
43.803, 29.936
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BLACK SEA.
ROMANIA.
DNC 10.
1. HAZARDOUS OPERATIONS 08 THRU 12 APR
   AND 15 THRU 19 APR IN AREA BOUND BY
   44-25.00N 030-48.00E, 43-05.00N 030-48.00E,
   43-05.00N 029-25.00E, 43-35.00N 029-25.00E,
   43-35.00N 029-10.00E, 43-45.00N 029-10.00E,
   43-45.00N 028-52.00E, 44-25.00N 028-52.00E.
2. CANCEL THIS MSG 200001Z APR 24.

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

1327 within 180 nm since 1999 · 8 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 22:38Z; 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.