Hazardous operations
North Pacific Ocean · NAVAREA XII 25/16
What this record establishes
Archived notice · 2016-01-27 02:08Z
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 W6630 090119Z JAN 16.. Issued 2016-01-23 23:50Z. 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
- Hazardous operationslater cancellation notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 8 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2016-01-28 17:30Z | 2016-01-28 22:43Z | — | 5 h 13 |
| 2016-01-28 17:30Z | 2016-01-28 23:40Z | — | 6 h 10 |
| 2016-01-29 17:30Z | 2016-01-29 22:43Z | — | 5 h 13 |
| 2016-01-29 17:30Z | 2016-01-29 23:40Z | — | 6 h 10 |
| 2016-01-30 17:30Z | 2016-01-30 22:43Z | — | 5 h 13 |
| 2016-01-30 17:30Z | 2016-01-30 23:40Z | — | 6 h 10 |
| 2016-01-31 17:30Z | 2016-01-31 22:43Z | — | 5 h 13 |
| 2016-01-31 17:30Z | 2016-01-31 23:40Z | — | 6 h 10 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2016-01-23 23:50Z
- status
- Archived notice
- self-cancels
- 2016-02-01 00:40Z
- authority
- WESTERN RANGE OP W6630 090119Z JAN 16.
- NAVAREA
- NAVAREA XII
- issued by
- WESTERN RANGE OP
- sea
- North Pacific Ocean
- position
- 32.014, -147.975
- 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 1730Z TO 2243Z DAILY
28 THRU 31 JAN IN AREAS BOUND BY:
A. 34-37N 124-05W, 34-57N 124-06W,
34-59N 121-24W, 34-39N 121-24W.
B. 34-39N 126-34W, 34-55N 126-34W,
34-55N 124-29W, 34-39N 124-29W.
C. 29-40N 152-25W, 30-52N 153-09W,
32-32N 153-29W, 34-21N 145-57W,
31-25N 145-06W.
2. HAZARDOUS OPERATIONS 1730Z TO 2340Z DAILY
28 THRU 31 JAN IN AREAS BOUND BY:
A. 20-06N 167-20W, 20-23N 167-32W,
20-38N 167-09W, 20-19N 166-55W.
B. 22-54N 163-05W, 23-10N 163-16W,
23-32N 162-38W, 23-18N 162-27W.
C. 33-16N 141-22W, 33-36N 141-36W,
34-00N 140-37W, 33-40N 140-22W.
3. CANCEL THIS MSG 010040Z FEB 16.
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
11 within 180 nm since 2001 · 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. 1830Z to 2349Z daily 30 may thru 01 jun in area bound by 34-40N 124-10W, 34-59N…2017-05-25
- Hazardous operations2016-01-27
- Hazardous operations2010-04-21
- Hazardous operations2010-04-19
- Hazardous operations2010-04-16
- Hazardous operations 0131Z to 0701Z daily 04 thru 06 dec in areas bound by: a. 34-51N 120-57W, 34-53N…2001-12-03
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
31 military exercises listed in force · see all
Record snapshot 2026-09-29 17:16Z; 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.