Hazardous operations 0258Z to 0553Z daily 15 thru 19 apr in areas bound by: a. 34-27N 120-28W, 34-26N…
North Pacific Ocean · NAVAREA XII 143/11
What this record establishes
Archived notice · 2011-04-15 09:03Z
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 OP W7233 311538Z MAR 11 - UPDATED BY WESTERN RANGE OP W7233 090106Z APR 11.. Issued 2011-04-10 09:36Z. 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 143/11 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 |
|---|---|---|---|
| 2011-04-15 02:58Z | 2011-04-15 05:53Z | — | 2 h 55 |
| 2011-04-16 02:58Z | 2011-04-16 05:53Z | — | 2 h 55 |
| 2011-04-17 02:58Z | 2011-04-17 05:53Z | — | 2 h 55 |
| 2011-04-18 02:58Z | 2011-04-18 05:53Z | — | 2 h 55 |
| 2011-04-19 02:58Z | 2011-04-19 05:53Z | — | 2 h 55 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2011-04-10 09:36Z
- status
- Archived notice
- self-cancels
- 2011-04-19 06:53Z
- authority
- WESTERN RANGE OP W7233 311538Z MAR 11 - UPDATED BY WESTERN RANGE OP W7233 090106Z APR 11.
- NAVAREA
- NAVAREA XII
- issued by
- WESTERN RANGE OP
- sea
- North Pacific Ocean
- position
- 14.352, -110.444
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC.
MISSILES.
1. HAZARDOUS OPERATIONS 0258Z TO 0553Z DAILY
15 THRU 19 APR IN AREAS BOUND BY:
A. 34-27N 120-28W, 34-26N 120-32W,
34-38N 120-37W, 34-39N 120-33W.
B. 31-54N 119-38W, 33-43N 120-22W,
33-50N 119-58W, 32-01N 119-15W.
C. 10-24N 111-57W, 15-12N 113-33W,
17-15N 108-54W, 12-39N 106-27W.
2. CANCEL THIS MSG 190653Z APR.
Reading this warning
- Missile firing
- Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
- 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 · missile & rocket hazards
4 within 180 nm since 2011 · 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 2008Z to 2309Z daily 13 thru 17 sep in areas bound by: a. 34-27N 120-29W, 34-26N…2012-09-08
- Hazardous operations in progress until further notice in areas bound by: a. 34-27N 120-29W, 34-26N 120-31W,…2012-08-09
- Hazardous operations 0500Z to 0930Z daily 02 thru 07 aug in areas bound by: a. 34-27N 120-29W, 34-26N…2012-07-31
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
8 missile & rocket hazards listed in force · see all
Record snapshot 2026-10-03 09:10Z; source collection times vary.
Missiles
Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →
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.