Hazardous operations 100700Z to 101434Z feb, alternate 110700Z to 111434Z feb in areas bound by: a.…
North Pacific Ocean · HYDROPAC 402/23
What this record establishes
Archived notice · 2023-02-10 08:19Z
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) · RTS SAFETY KWAJALEIN MH 0/23 011836Z FEB 23.. Issued 2023-02-05 04:00Z. 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 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 HYDROPAC 402/23 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2023-02-10 07:00Z | 2023-02-10 14:34Z | — | 7 h 34 |
| 2023-02-11 07:00Z | 2023-02-11 14:34Z | — | 7 h 34 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2023-02-05 04:00Z
- status
- Archived notice
- self-cancels
- 2023-02-11 15:34Z
- authority
- RTS SAFETY KWAJALEIN MH 0/23 011836Z FEB 23.
- issued by
- RTS SAFETY KWAJALEIN MH
- sea
- North Pacific Ocean
- position
- 7.400, 164.456
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC.
MICRONESIA.
DNC 12.
1. HAZARDOUS OPERATIONS 100700Z TO 101434Z FEB,
ALTERNATE 110700Z TO 111434Z FEB
IN AREAS BOUND BY:
A. 09-41.00N 169-09.00E, 09-54.00N 169-00.00E,
10-04.00N 168-59.00E, 10-12.00N 169-08.00E,
10-38.00N 168-51.00E, 10-06.00N 168-03.00E,
09-39.00N 167-29.00E, 09-31.00N 167-24.00E,
09-23.00N 167-33.00E, 09-15.00N 167-20.00E,
08-55.00N 167-33.00E, 08-59.00N 167-45.00E,
08-59.00N 167-55.00E, 09-19.00N 168-35.00E.
B. 07-41.00N 165-07.00E, 08-44.00N 164-05.00E,
08-26.00N 163-18.00E, 07-07.00N 163-49.00E,
06-03.00N 164-46.00E, 06-19.00N 165-33.00E.
2. CANCEL THIS MSG 111534Z FEB 23.
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.
- 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
34 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, 070600Z to 071258Z jul, alternate 080600Z to 081258Z jul in areas bound by: a.…2022-07-03
- Hazardous operations 030700Z to 031434Z apr, alternate 040700Z to 041434Z apr in area bound by a. 09-15N…2022-03-29
- Hazardous operations 030700Z to 031434Z, alternate 040700Z to 041434Z mar in areas bound by: a. 09-15N…2022-03-01
- Hazardous operations 280700Z to 281434Z oct, alternate 290726Z to 291500Z and 0700Z to 1500Z daily 30 oct…2020-10-27
- Hazardous operations 280700Z to 281434Z oct, alternate 290726Z to 291500Z oct in areas bound by: a. 09-15N…2020-10-23
- Hazardous operations 020701Z to 021435Z sep, alternate 030725Z to 031459Z sep in areas bound by: a. 10-34N…2020-08-29
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 04:03Z; 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.