Hazardous operations: a. 100855Z to 101034Z nov, alternate 0855Z to 1034Z daily 11 and 12 nov in area bound…
North Pacific Ocean · NAVAREA XII 841/22
What this record establishes
Archived notice · 2022-11-10 10:37Z
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 0/22 030929Z NOV 22.. Issued 2022-11-05 04:50Z. 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 NAVAREA XII 841/22 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-11-10 08:55Z | 2022-11-10 10:34Z | — | 1 h 39 |
| 2022-11-10 08:55Z | 2022-11-10 10:44Z | — | 1 h 49 |
| 2022-11-10 11:15Z | 2022-11-10 12:18Z | — | 1 h 03 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-11-05 04:50Z
- status
- Archived notice
- self-cancels
- 2022-11-12 13:18Z
- authority
- WESTERN RANGE 0/22 030929Z NOV 22.
- NAVAREA
- NAVAREA XII
- issued by
- WESTERN RANGE
- sea
- North Pacific Ocean
- position
- 12.008, -125.706
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS:
A. 100855Z TO 101034Z NOV, ALTERNATE
0855Z TO 1034Z DAILY 11 AND 12 NOV
IN AREA BOUND BY
34-43.00N 120-21.00W, 34-43.00N 120-39.00W,
34-16.00N 120-40.00W, 34-27.00N 120-20.00W.
B. 100855Z TO 101044Z NOV, ALTERNATE
0855Z TO 1044Z DAILY 11 AND 12 NOV
IN AREA BOUND BY
12-52.00N 120-24.00W, 15-08.00N 130-06.00W,
11-09.00N 130-59.00W, 08-57.00N 121-24.00W.
C. 101115Z TO 101218Z NOV, ALTERNATE
1115Z TO 1218Z DAILY 11 AND 12 NOV
IN AREA BOUND BY
28-47.00N 146-26.00W, 28-52.00N 146-54.00W,
28-33.00N 147-32.00W, 20-58.00N 149-08.00W,
18-44.00N 149-34.00W, 10-53.00N 151-03.00W,
10-45.00N 150-21.00W, 20-01.00N 148-19.00W.
2. CANCEL THIS MSG 121318Z NOV 22.
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.
- 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
28 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: a. 010855Z to 011034Z nov, alternate 020855Z to 021034Z nov in area bound by 34-43.00N…2022-10-29
- Hazardous operations: a. 010855Z to 011034Z nov, alternate 020855Z to 021034Z nov in area bound by 34-43.00N…2022-10-27
- Hazardous operations: a. 1741Z to 1914Z daily 27 and 28 sep in area bound by 34-29N 120-28W, 34-17N 120-41W,…2021-09-22
- Hazardous operations 151212Z to 151547Z sep, alternate 1212Z to 1547Z daily 16 thru 18 sep in area bound by…2018-09-10
- Hazardous operations2016-11-06
- Hazardous operations2016-11-01
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 2026-10-01 20:08Z; 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.