Hazardous operations 24 thru 29 sep in area bound by 31-10.00N 116-30.00W, 31-10.00N 116-40.00W, 31-00.00N…
North Pacific Ocean · NAVAREA XII 654/23
What this record establishes
Archived notice · 2023-09-30 00:01Z
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) · MEXICO XII 1/23 211552Z SEP 23.. Issued 2023-09-21 16:28Z. 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.
Current notices and reporting history in the North Pacific Ocean →
- issued
- 2023-09-21 16:28Z
- status
- Archived notice
- self-cancels
- 2023-09-30 00:01Z
- authority
- MEXICO XII 1/23 211552Z SEP 23.
- NAVAREA
- NAVAREA XII
- issued by
- MEXICO XII
- sea
- North Pacific Ocean
- position
- 31.083, -116.583
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. MEXICO. 1. HAZARDOUS OPERATIONS 24 THRU 29 SEP IN AREA BOUND BY 31-10.00N 116-30.00W, 31-10.00N 116-40.00W, 31-00.00N 116-40.00W, 31-00.00N 116-30.00W. 2. CANCEL THIS MSG 300001Z SEP 23.
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
497 within 180 nm since 1999 · 22 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 010800Z oct to 010800Z nov in area bound by 32-55.00N 118-25.00W, 32-55.00N 118-15.00W,…2026-09-23
- Hazardous operations 010800Z oct to 010800Z nov in area bound by 32-52.70N 119-11.97W, 33-08.07N 118-52.08W,…2026-09-23
- Hazardous operations 010800Z oct to 010800Z nov in area bound by 32-33.00N 118-25.00W, 32-35.00N 118-16.00W,…2026-09-23
- Hazardous operations 271300Z to 272300Z sep in area within one mile of 32-52.80N 118-17.70W2026-09-21
- Hazardous operations 281300Z to 282300Z sep in area within one mile of 32-52.80N 118-17.70W2026-09-21
- Hazardous operations 251300Z to 252300Z sep in area within one mile of 32-52.80N 118-17.70W2026-09-21
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
- Coronado island south light 32-23.5N 117-14.5W unlitNav aids · 85.4 nm
Worldwide in the collected sources
9 military exercises listed in force · see all
Record snapshot 2026-10-02 16:23Z; 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.