Exercises

Hazardous operations 0800Z to 2200Z daily 27 feb thru 03 mar in area bound by 41-12.9N 029-07.8E, 41-10.9N…

Sea of Marmara · HYDROLANT 381/06

What this record establishes

Archived notice · 2006-03-03 23:00Z

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 100/06 210906Z FEB 06.. Issued 2006-02-23 15:57Z. 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
Sea of Marmara. 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 Sea of Marmara →

Activity windows · 5 in this warning

opens (UTC)closes (UTC)locallength
2006-02-27 08:00Z2006-02-27 22:00Z—14 h
2006-02-28 08:00Z2006-02-28 22:00Z—14 h
2006-03-01 08:00Z2006-03-01 22:00Z—14 h
2006-03-02 08:00Z2006-03-02 22:00Z—14 h
2006-03-03 08:00Z2006-03-03 22:00Z—14 h

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

issued
2006-02-23 15:57Z
status
Archived notice
self-cancels
2006-03-03 23:00Z
authority
NAVAREA III 100/06 210906Z FEB 06.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Sea of Marmara
position
41.198, 29.114
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 0800Z TO 2200Z DAILY
   27 FEB THRU 03 MAR IN AREA BOUND BY
   41-12.9N 029-07.8E, 41-10.9N 029-07.3E,
   41-12.6N 029-05.7E, 41-11.4N 029-05.8E.
2. CANCEL HYDROLANT 381/05 DTG 231537Z FEB 06,
   MSG PROMULGATED IN ERROR.
3. CANCEL THIS MSG 032300Z MAR.

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.
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.
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

317 within 180 nm since 1999 · 4 in the last 12 months · 0 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

9 military exercises listed in force · see all

Record snapshot 2026-10-03 03:15Z; 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.