Hazardous operations 1500Z to 2325Z daily 29 oct thru 29 nov in areas: a. within 12 miles of trackline…
North Atlantic Ocean · HYDROLANT 2056/09
What this record establishes
Archived notice · 2009-10-29 23:23Z
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) · MARINE GUYANE 12/09 161305Z OCT 09.. Issued 2009-10-24 05:15Z. 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
- Hazardous operations 1500Z to 2325Z daily 29 oct thru 29 nov: a. vicinity trackline between 05-19N 052-47W…cancelled by this notice
- Cancel HYDROLANT 2056/09, 2057/09(51,57) and this msg, operations completedlater cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
Activity windows · 32 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2009-10-29 15:00Z | 2009-10-29 23:25Z | — | 8 h 25 |
| 2009-10-30 15:00Z | 2009-10-30 23:25Z | — | 8 h 25 |
| 2009-10-31 15:00Z | 2009-10-31 23:25Z | — | 8 h 25 |
| 2009-11-01 15:00Z | 2009-11-01 23:25Z | — | 8 h 25 |
| 2009-11-02 15:00Z | 2009-11-02 23:25Z | — | 8 h 25 |
| 2009-11-03 15:00Z | 2009-11-03 23:25Z | — | 8 h 25 |
| 2009-11-04 15:00Z | 2009-11-04 23:25Z | — | 8 h 25 |
| 2009-11-05 15:00Z | 2009-11-05 23:25Z | — | 8 h 25 |
| … 24 more | |||
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2009-10-24 05:15Z
- status
- Archived notice
- self-cancels
- 2009-11-30 00:25Z
- authority
- MARINE GUYANE 12/09 161305Z OCT 09.
- issued by
- COMAR GUYANE
- sea
- North Atlantic Ocean
- position
- 4.892, -42.400
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1500Z TO 2325Z DAILY
29 OCT THRU 29 NOV IN AREAS:
A. WITHIN 12 MILES OF TRACKLINE BETWEEN
05-19N 052-47W AND 05-04N 052-30W.
B. BOUND BY
05-22N 047-32W, 04-51N 047-33W,
04-53N 048-30W, 05-24N 048-29W.
C. BOUND BY
05-09N 046-00W, 04-53N 046-01W,
04-57N 047-42W, 05-13N 047-41W.
D. BOUND BY
05-26N 043-43W, 04-26N 043-45W,
04-20N 041-05W, 05-21N 041-03W.
2. CANCEL HYDROLANT 2053/09.
3. CANCEL THIS MSG 300025Z NOV.
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.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- 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
44 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 1638Z to 1742Z daily 06 thru 31 mar in area bound by 05-29N 050-14W, 05-29N 049-36W,…2018-03-01
- Hazardous operations 0003Z to 0207Z daily 28 jan thru 27 feb in areas bound by: a. 05-03N 049-32W, 05-05N…2017-01-27
- Hazardous operations2015-02-06
- Hazardous operations 1500Z to 2325Z daily 29 oct thru 29 nov in areas: a. within 12 miles of trackline…2009-10-24
- Hazardous operations 1500Z to 2325Z daily 29 oct thru 29 nov: a. vicinity trackline between 05-19N 052-47W…2009-10-24
- Hazardous operations 1500Z to 2325Z daily 29 oct thru 29 nov: a. vicinity trackline between 05-19N 052-47W…2009-10-24
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 03:08Z; 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.