Exercises

Hazardous operations

Adriatic Sea · HYDROLANT 2436/13

What this record establishes

Archived notice · 2013-10-04 13:00Z

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 462/13 021217Z OCT 13 - SHGA 02 OCT 13.. Issued 2013-10-02 13:48Z. 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
Adriatic 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.

Related notices and cancellation links

Current notices and reporting history in the Adriatic Sea →

issued
2013-10-02 13:48Z
status
Archived notice
self-cancels
2013-10-04 13:00Z
authority
NAVAREA III 462/13 021217Z OCT 13 - SHGA 02 OCT 13.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Adriatic Sea
position
43.326, 16.186
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ADRIATIC SEA.
CROATIA.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 0700Z TO 1200Z DAILY
   03 AND 04 OCT IN AREA BOUND BY
   43-22.0N 016-10.0E, 43-19.0N 016-19.0E,
   43-18.0N 016-15.0E, 43-18.5N 016-03.5E.
2. CANCEL HYDROLANT 2417/13(14).
3. CANCEL THIS MSG 041300Z OCT 13.

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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
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

172 within 180 nm since 1996 · 0 in the last 12 months · 0 listed in force now

96
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

32 military exercises listed in force · see all

Record snapshot 2026-09-28 05:24Z; 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.