Hazardous operations 251707Z to 252137Z, 261645Z to 262115Z 271624Z to 272057Z, 281602Z to 282035Z feb and…
South Pacific Ocean · HYDROPAC 441/22
What this record establishes
Archived notice · 2022-02-25 21:44Z
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) · WESTERN RANGE 171937Z FEB 22.. Issued 2022-02-21 04:41Z. 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
- South Pacific 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 1707Z to 2137Z daily 25 and 26 feb in area bound by 01-00N 115-00W, 11-00S 103-00W,…cancelled by this notice
- Cancel HYDROPAC 441/22 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the South Pacific Ocean →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-02-25 17:07Z | 2022-02-25 21:37Z | — | 4 h 30 |
| 2022-02-26 16:45Z | 2022-02-26 21:15Z | — | 4 h 30 |
| 2022-02-27 16:24Z | 2022-02-27 20:57Z | — | 4 h 33 |
| 2022-02-28 16:02Z | 2022-02-28 20:35Z | — | 4 h 33 |
| 2022-03-01 15:40Z | 2022-03-01 20:13Z | — | 4 h 33 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-02-21 04:41Z
- status
- Archived notice
- self-cancels
- 2022-03-01 21:13Z
- authority
- WESTERN RANGE 171937Z FEB 22.
- issued by
- WESTERN RANGE
- sea
- South Pacific Ocean
- position
- -13.689, -107.217
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH PACIFIC. DNC 06, DNC 07. 1. HAZARDOUS OPERATIONS 251707Z TO 252137Z, 261645Z TO 262115Z 271624Z TO 272057Z, 281602Z TO 282035Z FEB AND 011540Z TO 012013Z MAR IN AREA BOUND BY 01-00N 115-00W, 11-00S 103-00W, 26-00S 095-00W, 28-00S 098-00W, 17-00S 112-00W, 01-00S 118-30W. 2. CANCEL HYDROPAC 440/22. 3. CANCEL THIS MSG 012113Z MAR 22.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- 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.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf 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
3 within 180 nm since 2008 · 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 21:14Z; 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.