Gunnery and pyrotechnic operations 201600Z to 210001Z sep in area within 16 miles of 51-40N 163-50W
North Pacific Ocean · NAVAREA XII 420/17
What this record establishes
Archived notice · 2017-09-21 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) · COMCOGARD SECTOR ANCHORAGE 129/17 200525Z SEP 17.. Issued 2017-09-20 07:37Z. 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 parsed report position is 51.667, -163.833 with a 16.0 nm radius. It is a position in the source message, not a live location. 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 |
|---|---|---|---|
| 2017-09-20 16:00Z | 2017-09-21 00:01Z | — | 8 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
- 2017-09-20 07:37Z
- status
- Archived notice
- self-cancels
- 2017-09-21 01:01Z
- authority
- COMCOGARD SECTOR ANCHORAGE 129/17 200525Z SEP 17.
- NAVAREA
- NAVAREA XII
- issued by
- COMCOGARD SECTOR ANCHORAGE
- sea
- North Pacific Ocean
- position
- 51.667, -163.833 · r 16.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC. 1. GUNNERY AND PYROTECHNIC OPERATIONS 201600Z TO 210001Z SEP IN AREA WITHIN 16 MILES OF 51-40N 163-50W. 2. CANCEL THIS MSG 210101Z SEP 17.
Reading this warning
- Gunnery and live firing
- Naval or coastal guns firing into a sea area for practice, at stated times.
- 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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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
11 within 180 nm since 2007 · 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 190830Z to 191430Z oct, alternate 0830Z to 1430Z daily 20 thru 29 oct in areas bound…2021-10-15
- Hazardous operations 162000Z to 170200Z aug, alternate 172000Z to 180200Z and 182000Z to 190200Z aug in…2021-08-12
- Hazardous operations 210830Z to 211430Z jun, alternate 0830Z to 1430Z daily 22 thru 30 jun in areas bound…2021-06-22
- Hazardous operations 210830Z to 211430Z jun, alternate 0830Z to 1430Z daily 22 thru 25 jun in areas bound…2021-06-16
- Hazardous operations2014-02-12
- Gunnery exercises 112230Z to 120130Z feb within 8200 yards of 53-40N 165-37W2014-02-09
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
31 military exercises listed in force · see all
Record snapshot 2026-09-29 17:08Z; 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.