Hazardous operations
North Pacific Ocean · HYDROPAC 3834/14
What this record establishes
Archived notice · 2014-12-28 12:17Z
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 XI 975/14 231128Z DEC 14.. Issued 2014-12-23 11:38Z. 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 Pacific Ocean. The parsed report position is 24.383, 161.767 with a 216.0 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
- Hazardous operationslater cancellation notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2014-12-27 21:15Z | 2014-12-27 22:45Z | — | 1 h 30 |
| 2014-12-28 21:15Z | 2014-12-28 22:45Z | — | 1 h 30 |
| 2014-12-29 21:15Z | 2014-12-29 22:45Z | — | 1 h 30 |
| 2014-12-30 21:15Z | 2014-12-30 22:45Z | — | 1 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
- 2014-12-23 11:38Z
- status
- Archived notice
- self-cancels
- 2014-12-30 23:45Z
- authority
- NAVAREA XI 975/14 231128Z DEC 14.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- North Pacific Ocean
- position
- 24.383, 161.767 · r 216.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC. HAZARDOUS OPERATIONS. DNC 12. 1. HAZARDOUS OPERATIONS 2115Z TO 2245Z DAILY 27 THRU 30 DEC WITHIN 216 MILES OF 24-23N 161-46E. 2. CANCEL THIS MSG 302345Z DEC 14.
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.
- 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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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
13 within 180 nm since 2000 · 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 0300Z to 0830Z daily 21 thru 23 mar in area bound by 23-34N 159-00E, 23-48N 158-52E,…2007-03-17
- Hazardous operations 0300Z to 0830Z daily 21 thru 23 mar in areas bound by: a. 34-55N 120-56W, 34-56N…2007-03-16
- Hazardous operations 0300Z to 0830Z daily 21 thru 23 mar in areas bound by: a. 34-55N 120-56W, 34-56N…2007-03-16
- Hazardous operations 180632Z to 180644Z dec, alternate 0607Z to 0753Z daily 19 dec thru 28 feb 07 in areas…2006-12-16
- Hazardous operations 160639Z to 160717Z dec, alternate 0607Z to 0753Z daily 17 dec thru 28 feb 07 in areas…2006-12-11
- Hazardous operations 2000Z to 2100Z daily 08 thru 11 nov in ellipse shaped area centered in 24-23N 161-46E2006-11-04
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
28 military exercises listed in force · see all
Record snapshot 2026-10-02 05:49Z; 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.