Gunnery exercises 161900Z to 170400Z in area within five miles of 56-55.25N 136-25.00W
North Pacific Ocean · NAVAREA XII 255/24
What this record establishes
Archived notice · 2024-04-17 05:00Z
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 SOUTHEAST AK 0/24 151801Z APR 24.. Issued 2024-04-15 20:14Z. 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 56.921, -136.417 with a 5.0 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 |
|---|---|---|---|
| 2024-04-16 19:00Z | 2024-04-17 04:00Z | — | 9 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2024-04-15 20:14Z
- status
- Archived notice
- self-cancels
- 2024-04-17 05:00Z
- authority
- COMCOGARD SECTOR SOUTHEAST AK 0/24 151801Z APR 24.
- NAVAREA
- NAVAREA XII
- issued by
- COMCOGARD SECTOR SOUTHEAST AK
- sea
- North Pacific Ocean
- position
- 56.921, -136.417 · r 5.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH PACIFIC. ALASKA. 1. GUNNERY EXERCISES 161900Z TO 170400Z IN AREA WITHIN FIVE MILES OF 56-55.25N 136-25.00W. 2. CANCEL THIS MSG 170500Z APR 24.
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
83 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.
- Gunnery exercises 081800Z to 090001Z may in area within 14 miles of 57-01.04N 136-26.40W2024-05-03
- Gunnery exercises 021800Z to 030000 may in area within 15 miles of 57-01.04N 136-26.40W2024-05-01
- Alaska 1. gunnery exercises 291800Z to 292100Z mar in area within 13 miles of 57-45.1N 137-34.5W2024-03-25
- Gunnery exercises 021800Z to 022100Z nov in area within 13 miles of 57-45.68N 137-34.46W2023-11-01
- Gunnery exercises 012100Z to 020100Z and 021700Z to 022100Z nov in area within 11 miles of 56-55.25N…2023-10-31
- Gunnery exercises 281830Z to 290400Z sep in area within 11 miles of 56-55.22N 136-25.00W2022-09-27
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
28 military exercises listed in force · see all
Record snapshot 2026-10-01 14:09Z; 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.