Hazardous operations
North Pacific Ocean · NAVAREA XII 300/11
What this record establishes
Archived notice · 2011-08-22 01:01Z
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) · NAVAIRWARCEN 011737Z AUG 11.. Issued 2011-08-14 08:07Z. 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 →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-08-18 08:00Z | 2011-08-22 00:01Z | — | 88 h 01 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2011-08-14 08:07Z
- status
- Archived notice
- self-cancels
- 2011-08-22 01:01Z
- authority
- NAVAIRWARCEN 011737Z AUG 11.
- NAVAREA
- NAVAREA XII
- issued by
- NAVAIRWARCEN
- sea
- North Pacific Ocean
- position
- 31.567, -162.789
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 180800Z TO 220001Z AUG
IN AREAS:
A. BETWEEN 34-15N 35-30N AND 122-30W 128-30W.
B. BETWEEN 34-45N 35-30N AND 133-00W 137-00W.
C. BOUND BY
30-00N 166-00W, 32-00N 158-40W,
33-00N 159-00W, 31-30N 166-30W.
2. CANCEL THIS MSG 220101Z AUG.
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.
- 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
12 within 180 nm since 2006 · 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 0130Z to 0700Z daily 15 thru 20 nov in area bound by 24-33.00N 164-50.00W, 25-43.00N…2022-11-12
- Hazardous operations 110130Z nov to 110700Z nov, alternate 0130Z to 0700Z daily 13 and 15 thru 20 nov in…2022-11-06
- Hazardous operations 020800Z to 081700Z sep in areas bound by: a. 34-24N 125-00W, 35-20N 125-00W, 35-00N…2019-08-29
- Hazardous operations 261030Z to 261600Z oct, alternate 271030Z to 271600Z and 281030Z to 281600Z oct in area…2018-10-21
- Hazardous operations 300730Z to 301330Z jan, alternate 0730Z to 1330Z daily 31 jan thru 03 feb in areas…2018-01-26
- Hazardous operations 300730Z to 301330Z jan, alternate 0730Z to 1330Z daily 31 jan thru 03 feb in areas…2018-01-26
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 16:59Z; 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.