Exercises
Hazardous operations 270600Z to 271000Z apr in area bound by 42-36N 132-22E, 42-42N 135-52E, 41-51N 135-46E,…
HYDROPAC 331/99
- issued
- 1999-04-23 12:57Z
- status
- cancelled 1999-04-30 00:00Z (archive)
- self-cancels
- 1999-04-30 03:00Z
- sea
- Japan Sea
- position
- 41.978, 133.789
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 270600Z TO 271000Z APR IN AREA BOUND BY 42-36N 132-22E, 42-42N 135-52E, 41-51N 135-46E, 40-54N 135-10E, 40-25N 134-19E. 2. HAZARDOUS OPERATIONS 2200Z TO 0200Z COMMENCING DAILY 27 THRU 29 APR IN AREA BOUND BY 42-53N 131-28E, 42-52N 132-29E, 42-42N 133-12E, 42-45N 134-43E, 41-48N 134-33E, 41-47N 132-06E, 42-28N 130-50E. 3. CANCEL THIS MSG 300300Z APR.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-04-27 06:00Z | 1999-04-27 10:00Z | — | 4 h |
| 1999-04-27 22:00Z | 1999-04-28 02:00Z | — | 4 h |
| 1999-04-28 22:00Z | 1999-04-29 02:00Z | — | 4 h |
| 1999-04-29 22:00Z | 1999-04-30 02:00Z | — | 4 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
238 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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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.