Hazardous operations 19 may, alternate 20 may within 4000 meters of 41-18N 009-29E
Tyrrhenian Sea · HYDROLANT 939/05
What this record establishes
Archived notice · 2005-05-21 00:00Z
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 86/05 181550Z MAY 05.. Issued 2005-05-18 17:33Z. 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 parsed report position is 41.300, 9.483 with a 2.2 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Current notices and reporting history in the Tyrrhenian Sea →
- issued
- 2005-05-18 17:33Z
- status
- Archived notice
- authority
- MARISARDEGNA 86/05 181550Z MAY 05.
- issued by
- MARISARDEGNA
- sea
- Tyrrhenian Sea
- position
- 41.300, 9.483 · r 2.2 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 19 MAY, ALTERNATE 20 MAY WITHIN 4000 METERS OF 41-18N 009-29E. 2. CANCEL THIS MSG 21 MAY.
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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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.
Collected reports in this area · military exercises
503 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 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
- Gunnery exercises 0630Z to 1630Z daily 22 thru 25 mar and 0530Z to 2030Z daily 28 mar thru 01 apr and 04…2022-03-18
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
9 military exercises listed in force · see all
Record snapshot 2026-10-03 00:06Z; 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.