Hazardous operations 0900Z to 1800Z daily 01 thru 03, 06 thru 10, 13 thru 17, 20 thru 24, and 27 thru 31 mar…
Tyrrhenian Sea · HYDROLANT 406/06
What this record establishes
Archived notice · 2006-03-31 21:00Z
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) · MARISARDEGNA 36/06 271153Z FEB 06.. Issued 2006-02-27 16:13Z. 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
- Tyrrhenian 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 Tyrrhenian Sea →
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2006-03-01 09:00Z | 2006-03-01 18:00Z | — | 9 h |
| 2006-03-01 09:00Z | 2006-03-01 20:00Z | — | 11 h |
| 2006-03-02 09:00Z | 2006-03-02 18:00Z | — | 9 h |
| 2006-03-02 09:00Z | 2006-03-02 20:00Z | — | 11 h |
| 2006-03-03 09:00Z | 2006-03-03 18:00Z | — | 9 h |
| 2006-03-03 09:00Z | 2006-03-03 20:00Z | — | 11 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2006-02-27 16:13Z
- status
- Archived notice
- self-cancels
- 2006-03-31 21:00Z
- authority
- MARISARDEGNA 36/06 271153Z FEB 06.
- issued by
- MARISARDEGNA
- sea
- Tyrrhenian Sea
- position
- 39.820, 10.677
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0900Z TO 1800Z DAILY
01 THRU 03, 06 THRU 10, 13 THRU 17,
20 THRU 24, AND 27 THRU 31 MAR
IN AREAS BOUND BY:
A. 40-15N 010-00E, 40-15N 011-31E,
40-11N 011-33E, 39-32N 011-38E,
38-52N 011-28E, 39-10N 010-00E,
39-28N 009-38E, 39-43N 009-40E.
B. 40-37N 009-50E, 40-40N 010-35E,
40-40N 010-50E, 39-20N 010-50E,
39-20N 009-47E, 39-24N 009-40E.
C. 40-37N 009-54E, 40-42N 011-17E,
40-11N 011-33E, 39-46N 011-36E,
39-02N 010-17E, 39-04N 010-08E,
39-26N 009-38E.
2. HAZARDOUS OPERATIONS 0900Z TO 2000Z DAILY
01 THRU 03, 06 THRU 10, 13 THRU 17,
20 THRU 24, AND 27 THRU 31 MAR
IN AREA BOUND BY
40-00N 010-00E, 40-00N 010-30E,
39-10N 010-30E, 39-10N 010-00E,
39-26N 009-38E, 39-38N 009-38E.
3. CANCEL THIS MSG 312100Z 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.
- 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.
Collected reports in this area · military exercises
352 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now
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.
- Hazardous operations 0530Z to 1530Z daily 21 thru 28 apr and 02 thru 19 may in area bound by 39-42.84N…2023-04-21
- Hazardous operations 0600Z to 2200Z daily 24 thru 26 mar in area bound by 39-40.00N 014-14.00E, 39-26.00N…2023-03-21
- Hazardous operations 0600Z to 2200Z daily 21 and 22 mar in area bound by 38-52.00N 011-22.00E, 38-51.00N…2023-03-19
- Hazardous operations 0530Z to 1530Z daily 28 apr thru 27 may except saturdays and sundays in area bound by…2022-04-27
- Hazardous operations 070600Z to 071800Z in area bound by 38-57-00N 008-37-06E, 38-56-24N 008-31-42E,…2022-04-05
- Gunnery exercises 0530Z to 2030Z daily 28 thru 31 mar and 04 thru 07 apr and 0530Z to 1530Z daily 01 and 08…2022-03-26
Month of issue in the collected archive
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
28 military exercises listed in force · see all
Record snapshot 2026-10-01 18:12Z; 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.