Exercises

Hazardous operations 090001Z to 112359Z nov in area bound by 42-09.1N 006-39.7E, 41-39.9N 006-40.7E,…

Mediterranean Sea - Western Basin · HYDROLANT 2746/21

What this record establishes

Archived notice · 2021-11-12 00:59Z

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) · NAVAREA III 809/21 060829Z NOV 21.. Issued 2021-11-06 08:35Z. 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
Mediterranean Sea - Western Basin. 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 Mediterranean Sea - Western Basin →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2021-11-09 00:01Z2021-11-11 23:59Z—71 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
2021-11-06 08:35Z
status
Archived notice
self-cancels
2021-11-12 00:59Z
authority
NAVAREA III 809/21 060829Z NOV 21.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Mediterranean Sea - Western Basin
position
42.026, 7.396
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
CORSICA.
DNC 08.
1. HAZARDOUS OPERATIONS 090001Z TO 112359Z NOV
   IN AREA BOUND BY
   42-09.1N 006-39.7E, 41-39.9N 006-40.7E,
   41-39.2N 006-00.2E, 41-31.8N 006-00.2E,
   41-09.4N 007-00.7E, 41-39.5N 008-16.4E,
   41-39.9N 008-00.1E, 42-09.4N 008-02.5E,
   42-23.3N 007-59.7E, 42-47.7N 008-46.6E,
   42-57.9N 007-44.3E.
2. CANCEL THIS MSG 120059Z NOV 21.

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

282 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
23

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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-02 18:51Z; 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.