Underwater ordnance detonations 030500Z to 031500Z mar within 2000 yards of 43-59.0N 009-55.5E
Tyrrhenian Sea · HYDROLANT 422/99
What this record establishes
Archived notice · 1999-03-03 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). Issued 1999-03-01 17:05Z. 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 43.983, 9.925 with a 1.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- South race buoy 53-08N 000-57E unlitcancelled by this notice
Current notices and reporting history in the Tyrrhenian Sea →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-03-03 05:00Z | 1999-03-03 15:00Z | — | 10 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 1999-03-01 17:05Z
- status
- Archived notice
- self-cancels
- 1999-03-03 16:00Z
- sea
- Tyrrhenian Sea
- position
- 43.983, 9.925 · r 1.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER ORDNANCE DETONATIONS 030500Z TO 031500Z MAR WITHIN 2000 YARDS OF 43-59.0N 009-55.5E. 2. CANCEL HYDROLANT 414/99(37), BUOY RESTORED. 3. CANCEL THIS MSG 031600Z MAR.
Reading this warning
- Unexploded ordnance
- Bombs, shells, mines or torpedoes found on the seabed or washed up, and the operations to remove or destroy them.
- 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.
- 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.
Collected reports in this area · ordnance operations
77 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.
- Underwater ordnance detonations 13 jul, alternate 14 jul in 41-17.2N 009-30.6E2006-07-12
- Ordnance drop exercises 01 apr within 4000 meters of 41-18.1N 009-29.0E2005-03-31
- Ordnance detonations 02 nov, alternate 03 nov within 4000 meters of 41-15.1N 009-36.2E2004-11-02
- Underwater ordnance detonations 03 feb within 4000 meters of 41-15.1N 009-36.2E2004-02-03
- Underwater ordnance detonations 08 aug vicinity 41-17.2N 009-30.6E2002-08-07
- Unexploded ordnance on wreck within 500 meters of 44-03-38N 009-45-06E2002-02-17
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
0 ordnance operations listed in force · see all
Record snapshot 2026-10-03 20:28Z; source collection times vary.
Ordnance
Ordnance disposal, underwater detonations and unexploded ordnance. All current ordnance operations →
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.