Exercises

Hazardous operations

Mediterranean Sea - Eastern Basin · HYDROLANT 1253/15

What this record establishes

Archived notice · 2015-05-24 13:30Z

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 289/15 211205Z MAY 15 - NAVAREA III 290/15 211239Z MAY 15.. Issued 2015-05-21 14:24Z. 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 - Eastern 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.

Related notices and cancellation links

Current notices and reporting history in the Mediterranean Sea - Eastern Basin →

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2015-05-22 10:15Z2015-05-22 12:30Z—2 h 15
2015-05-23 10:15Z2015-05-23 12:30Z—2 h 15
2015-05-24 10:15Z2015-05-24 12:30Z—2 h 15

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2015-05-21 14:24Z
status
Archived notice
self-cancels
2015-05-24 13:30Z
authority
NAVAREA III 289/15 211205Z MAY 15 - NAVAREA III 290/15 211239Z MAY 15.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Mediterranean Sea - Eastern Basin
position
36.116, 28.884
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN MEDITERRANEAN SEA.
HAZARDOUS OPERATIONS.
DNC 10.
1. HAZARDOUS OPERATIONS 1015Z TO 1230Z DAILY
   22 THRU 24 MAY
   IN AREA BOUND BY
   36-19.1N 028-43.0E, 36-13.0N 028-53.2E,
   36-09.0N 029-06.0E, 36-00.0N 029-06.0E,
   36-00.0N 028-43.0E.
2. CANCEL HYDROLANT 1230/15.
3. CANCEL THIS MSG 241330Z MAY 15.

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.
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.
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

646 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
00
05
10
15
20
24

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 2026-10-03 03:20Z; 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.