Exercises

Hazardous operations

Aegean Sea · HYDROLANT 2532/10

What this record establishes

Archived notice · 2011-12-31 22:00Z

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) · NAVAREA III 463/10 301258Z DEC 10.. Issued 2010-12-30 15:32Z. 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
Aegean 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 Aegean Sea →

issued
2010-12-30 15:32Z
status
Archived notice
self-cancels
2011-12-31 22:00Z
authority
NAVAREA III 463/10 301258Z DEC 10.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Aegean Sea
position
35.542, 23.825
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SEA OF CRETE.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS SUNRISE TO 2100Z DAILY
   01 JAN THRU 31 DEC EXCEPT SATURDAYS,
   SUNDAYS AND HOLIDAYS IN AREA BOUND BY
   35-29N 023-46E, 35-29N 023-51E,
   35-34N 023-55E, 35-36N 023-49E,
   35-36N 023-46E.
2. CANCEL THIS MSG 312200Z DEC 11.

Reading this warning

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

729 within 180 nm since 1998 · 1 in the last 12 months · 1 listed in force now

98
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

28 military exercises listed in force · see all

Record snapshot 2026-10-02 01:30Z; 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.