Hazardous operations
North Atlantic Ocean · HYDROLANT 2872/12
What this record establishes
Archived notice · 2012-12-09 18:30Z
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 II 389/12 051036Z DEC 12.. Issued 2012-12-05 11:15Z. 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
- North Atlantic Ocean. 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
- Cancel HYDROLANT 2849/12 and this msg, aid restoredcancelled by this notice
Current notices and reporting history in the North Atlantic Ocean →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-12-08 08:00Z | 2012-12-09 17:30Z | — | 33 h 30 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2012-12-05 11:15Z
- status
- Archived notice
- self-cancels
- 2012-12-09 18:30Z
- authority
- NAVAREA II 389/12 051036Z DEC 12.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 46.174, -10.076
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 080800Z TO 091730Z DEC IN AREA BOUND BY 45-10N 011-50W, 45-10N 008-10W, 47-00N 008-10W, 47-00N 010-00W, 47-20N 010-00W, 47-20N 011-50W. 2. CANCEL HYDROLANT 2860/12. 3. CANCEL THIS MSG 091830Z DEC 12.
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.
- 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.
- 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.
Collected reports in this area · military exercises
69 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 220800Z to 221700Z feb in area within 40 miles of 46-00.00N 006-40.00W2024-02-22
- Hazardous operations 130900Z to 131800Z feb in area within 40 miles of 46-39.76N 009-00.00W2024-02-09
- Hazardous operations 200800Z to 201600Z dec in area within 40 miles of 46-00.00N 006-00.00W2023-12-18
- Hazardous operations 210800Z to 211800Z nov in area within 40 miles of 45-40.00N 006-20.00W2023-11-17
- Gunnery exercises 161900Z to 162100Z oct in area bound by 47-25.01N 007-06.26W, 47-40.26N 007-35.26W,…2023-10-13
- Gunnery exercises 101200Z to 101300Z aug in area bound by 47-40.00N 008-00.00W, 47-40.26N 007-35.26W,…2023-08-09
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
17 military exercises listed in force · see all
Record snapshot 2026-09-25 02:18Z; 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.