Exercises
Hazardous operations
Western North Pacific · Mariana Islands · HYDROPAC 3121/15
- issued
- 2015-09-19 10:20Z
- status
- cancelled 2015-09-23 13:55Z (archive)
- self-cancels
- 2015-09-23 13:55Z
- authority
- COMCOGARD SECTOR GUAM 666/15 190643Z SEP 15.
- sea
- North Pacific Ocean
- position
- 11.743, 144.013
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC. MARIANA ISLANDS. HAZARDOUS OPERATIONS. DNC 12. 1. HAZARDOUS OPERATIONS 2200Z TO 1255Z COMMENCING DAILY 19 THRU 22 SEP IN AREA BOUND BY 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E, 11-45N 143-00E, 11-00N 143-00E, 11-00N 144-45E. 2. CANCEL THIS MSG 231355Z SEP 15.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2015-09-19 22:00Z | 2015-09-20 12:55Z | — | 14 h 55 |
| 2015-09-20 22:00Z | 2015-09-21 12:55Z | — | 14 h 55 |
| 2015-09-21 22:00Z | 2015-09-22 12:55Z | — | 14 h 55 |
| 2015-09-22 22:00Z | 2015-09-23 12:55Z | — | 14 h 55 |
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
902 within 180 nm since 2002 · 3 in the last 12 months · 1 in force now
02
05
10
15
20
25
26
- Hazardous operations 0100Z to 1300Z daily 24 thru 27 aug in areas within three miles of: a. 13-27.00N…2026-08-20
- Hazardous operations 0100Z to 1300Z daily 25 thru 27 aug in areas within three miles of: a. 13-27.00N…2026-08-19
- Hazardous operations 0100Z to 1300Z daily 18 thru 20 aug in areas within three miles of: a. 13-27.00N…2026-08-12
- Hazardous operations 2300Z to 1300Z daily 13 thru 15 may in areas within five miles of: a. 13-26.00N…2024-05-08
- Hazardous operations 2200Z to 0600Z 12 thru 19 may in vicinity 13-24.00N 144-39.15E2024-05-07
- Hazardous operations 082300Z to 091300Z may in areas within five miles of: a. 13-26.00N 145-08.00E2024-05-03
Season · when military exercises happen here
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F
M
A
M
J
J
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S
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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.