Exercises
Hazardous operations 0600Z to 0900Z daily 31 mar thru 02 apr in area bound by 41-56.0N 132-01.0E, 42-09.0N…
HYDROPAC 237/99
- issued
- 1999-03-27 21:24Z
- status
- cancelled 1999-04-02 00:00Z (archive)
- self-cancels
- 1999-04-02 10:00Z
- sea
- Japan Sea
- position
- 42.387, 132.333
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0600Z TO 0900Z DAILY 31 MAR THRU 02 APR IN AREA BOUND BY 41-56.0N 132-01.0E, 42-09.0N 131-43.0E, 42-28.0N 131-37.0E, 42-42.0N 132-26.0E, 42-49.0N 132-37.0E, 42-41.5N 133-01.5E, 42-19.0N 132-57.0E. 2. CANCEL THIS MSG 021000Z APR.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-03-31 06:00Z | 1999-03-31 09:00Z | — | 3 h |
| 1999-04-01 06:00Z | 1999-04-01 09:00Z | — | 3 h |
| 1999-04-02 06:00Z | 1999-04-02 09:00Z | — | 3 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · military exercises
236 within 180 nm since 1999 · 2 in the last 12 months · 2 in force now
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26
- 2200Z to 1000Z commencing daily 31 jul, 02 to 14, 16 to 21, 23 to 28 and 30 aug2026-07-27
- Gunnery exercises 2200Z to 1000Z daily, 31 jul, 02 thru 14, 16 thru 21, 23 thru 28 and 30 aug, in area bound…2026-07-27
- Gunnery exercises 2200Z to 0800Z daily 01, 02, 05 thru 07, 12 thru 17, 19 thru 24 and 26 thru 30 may in area…2024-04-27
- Gunnery exercises 2200Z to 0800Z daily 31 mar thru 05 apr, 07 thru 12, 14 thru 19, 21 thru 26, 28 and 29 apr…2024-03-27
- Gunnery exercises 2200Z to 0800Z daily 02, 04, 07, 09, 11, 14, 16, 20, 21, 23, 25 and 28 feb in area bound…2024-01-31
- Gunnery exercises 1400Z to 1400Z daily 02, 03, 05, 07, 10, 11, 19 thru 21, 24, 25, 27 and 28 feb in areas…2024-01-31
Season · when military exercises happen here
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M
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month of issue, all years in the archive
Nearby now · within 120 nm
Worldwide now
35 military exercises in force · see all
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.