Exercises
Hazardous operations
North Pacific · HYDROPAC 497/12
- issued
- 2012-02-21 13:58Z
- status
- cancelled 2012-02-25 12:09Z (archive)
- self-cancels
- 2012-02-28 18:31Z
- authority
- WESTERN RANGE OP W7719 081543Z FEB 11.
- sea
- North Pacific Ocean
- position
- 15.897, 177.402
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 0931Z TO 1731Z DAILY 25 THRU 28 FEB IN AREA BOUND BY 15-51N 175-56E, 14-48N 176-28E, 15-56N 178-52E, 17-00N 178-20E. 2. CANCEL THIS MSG 281831Z FEB.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-02-25 09:31Z | 2012-02-25 17:31Z | — | 8 h |
| 2012-02-26 09:31Z | 2012-02-26 17:31Z | — | 8 h |
| 2012-02-27 09:31Z | 2012-02-27 17:31Z | — | 8 h |
| 2012-02-28 09:31Z | 2012-02-28 17:31Z | — | 8 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
22 within 180 nm since 2008 · 0 in the last 12 months · 0 in force now
08
10
15
18
- Hazardous operations: a. 070631Z to 071428Z nov, alternate 080631Z to 081428Z nov in area bound by 15-10N…2018-11-02
- Hazardous operations 310631Z to 311431Z jul, alternate 0631Z to 1431Z daily 01 and 02 aug in area bound by…2018-07-26
- Hazardous operations 140751Z to 141630Z may, alternate 150751Z to 151630Z may in areas bound by: a. 15-26N…2018-05-09
- Hazardous operations 070645Z to 071508Z feb, alternate 0645Z to 1508Z daily 08 and 09 feb in area bound by…2018-02-02
- Hazardous operations 0631Z to 1429Z daily 02 thru 04 aug in area bound by 14-09N 175-16E, 15-07N 174-47E,…2017-07-28
- Hazardous operations 0631Z to 1429Z daily 26 apr thru 01 may in area bound by 15-16N 174-41E, 16-33N…2017-04-21
Season · when military exercises happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
Nothing else in force 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.