Hazardous operations 2130Z to 0630Z commencing daily 17 thru 21 and 24 thru 28 mar in areas bound by: a.…
Great Australian Bight · HYDROPAC 465/02
What this record establishes
Archived notice · 2002-03-29 07:30Z
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) · DANGER TO NAVIGATION 24/02 150032Z MAR 02. Issued 2002-03-15 07:10Z. 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
- Great Australian Bight. 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 Great Australian Bight →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2002-03-17 21:30Z | 2002-03-18 06:30Z | — | 9 h |
| 2002-03-18 21:30Z | 2002-03-19 06:30Z | — | 9 h |
| 2002-03-19 21:30Z | 2002-03-20 06:30Z | — | 9 h |
| 2002-03-20 21:30Z | 2002-03-21 06:30Z | — | 9 h |
| 2002-03-21 21:30Z | 2002-03-22 06:30Z | — | 9 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2002-03-15 07:10Z
- status
- Archived notice
- self-cancels
- 2002-03-29 07:30Z
- authority
- DANGER TO NAVIGATION 24/02 150032Z MAR 02
- issued by
- DANGER TO NAVIGATION
- sea
- Great Australian Bight
- position
- -36.625, 138.439
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 2130Z TO 0630Z COMMENCING DAILY
17 THRU 21 AND 24 THRU 28 MAR IN AREAS BOUND BY:
A. 36-17.0S 138-16.0E, 36-20.0S 138-39.0E,
36-41.0S 138-49.0E, 36-42.5S 138-37.0E,
36-41.0S 138-07.0E, 36-38.0S 137-52.0E,
36-22.0S 138-05.0E, 36-17.0S 138-16.0E.
B. 36-13.0S 138-53.0E, 36-51.5S 139-10.0E,
36-55.5S 138-40.0E, 36-53.5S 138-03.0E,
36-46.0S 137-35.0E, 36-31.0S 137-47.0E,
36-26.5S 138-20.0E, 36-13.0S 138-53.0E.
2. CANCEL THIS MSG 290730Z 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
1 within 180 nm since 2002 · 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.
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 19:14Z; 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.