California 1. hazardous operations 0531Z to 1234Z daily 07 thru 11 jul in areas bound by: a. 34-47.00N…
North Pacific Ocean · NAVAREA XII 431/22
What this record establishes
Archived notice · 2022-07-07 07:36Z
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 290940Z JUN 22.. Issued 2022-07-03 03:48Z. 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 431/22 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-07-07 05:31Z | 2022-07-07 12:34Z | — | 7 h 03 |
| 2022-07-08 05:31Z | 2022-07-08 12:34Z | — | 7 h 03 |
| 2022-07-09 05:31Z | 2022-07-09 12:34Z | — | 7 h 03 |
| 2022-07-10 05:31Z | 2022-07-10 12:34Z | — | 7 h 03 |
| 2022-07-11 05:31Z | 2022-07-11 12:34Z | — | 7 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
- 2022-07-03 03:48Z
- status
- Archived notice
- self-cancels
- 2022-07-11 13:44Z
- authority
- WESTERN RANGE 0/22 290940Z JUN 22.
- NAVAREA
- NAVAREA XII
- issued by
- WESTERN RANGE
- sea
- North Pacific Ocean
- position
- 33.869, -128.221
- 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 0531Z TO 1234Z DAILY
07 THRU 11 JUL IN AREAS BOUND BY:
A. 34-47.00N 120-37.00W, 34-51.00N 120-36.00W,
34-52.00N 121-25.00W, 34-39.00N 121-25.00W,
34-40.00N 121-01.00W.
B. 34-56.00N 123-14.00W, 34-51.00N 123-57.00W,
34-05.00N 123-49.00W, 34-10.00N 123-06.00W.
C. 35-01.00N 124-11.00W, 34-48.00N 126-00.00W,
33-40.00N 125-47.00W, 33-54.00N 123-59.00W.
D. 34-34.00N 128-22.00W, 34-17.00N 130-07.00W,
33-03.00N 129-49.00W, 33-20.00N 128-05.00W.
E. 33-04.00N 136-33.00W, 32-51.00N 137-30.00W,
31-54.00N 137-11.00W, 32-06.00N 136-15.00W.
2. CANCEL THIS MSG 111344Z JUL 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.
- 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
58 within 180 nm since 1999 · 1 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 190900Z to 192100Z aug, alternate 0900Z to 2100Z daily 20 and 21 aug in areas bound by:…2026-08-17
- Hazardous operations 191400Z to 192100Z aug in areas bound by: a. 32-41.90N 121-37.73W, 32-51.43N…2023-08-15
- Hazardous operations 121400Z to 122100Z aug in areas bound by: a. 32-41.90N 121-37.73W, 32-51.43N…2023-08-08
- Hazardous operations 041400Z to 042100Z aug, alternate 1400Z to 2100Z daily 05 and 12 aug in areas bound by…2023-07-31
- Hazardous operations 181230Z to 182030Z jan in areas bound by: a. 33-33.95N 120-11.23W, 33-28.48N…2023-01-13
- Hazardous operations 141230Z to 142000Z dec, alternate 1230Z to 2000Z daily 15 and 16 dec in areas bound by:…2022-12-09
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 2026-10-02 21:32Z; 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.