Exercises
Hazardous operations 2130Z to 2300Z daily 18 thru 21 sep within 216 miles of 31-55N 153-45E
HYDROPAC 1821/08
- issued
- 2008-09-18 08:34Z
- status
- cancelled 2008-09-22 00:01Z (archive)
- self-cancels
- 2008-09-22 00:01Z
- authority
- NAVAREA XI 512/08 15 SEP 08.
- sea
- North Pacific Ocean
- position
- 31.917, 153.750 · r 216.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 2130Z TO 2300Z DAILY 18 THRU 21 SEP WITHIN 216 MILES OF 31-55N 153-45E. 2. CANCEL THIS MSG 220001Z SEP.
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-09-18 21:30Z | 2008-09-18 23:00Z | — | 1 h 30 |
| 2008-09-19 21:30Z | 2008-09-19 23:00Z | — | 1 h 30 |
| 2008-09-20 21:30Z | 2008-09-20 23:00Z | — | 1 h 30 |
| 2008-09-21 21:30Z | 2008-09-21 23:00Z | — | 1 h 30 |
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
30 within 180 nm since 2001 · 0 in the last 12 months · 0 in force now
01
05
09
- Hazardous operations 1400Z to 1530Z daily 23 thru 26 nov within 216 miles of 31-55N 153-45E2009-11-19
- Hazardous operations 1900Z to 2030Z daily 17 thru 20 sep within 216 miles of 31-55N 153-45E2009-09-13
- Hazardous operations 1930Z to 2130Z daily 11 thru 14 aug within 216 miles of 31-55N 153-45E2009-08-06
- Hazardous operations 1900Z to 2100Z daily 30 jun thru 02 jul within 216 miles of 31-55N 153-45E2009-06-27
- Hazardous operations 1900Z to 2100Z daily 29 jun thru 02 jul within 216 miles of 31-55N 153-45E2009-06-25
- Hazardous operations 0030Z to 0200Z daily 16 thru 19 may within 216 miles of 31-55N 153-45E2009-05-15
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
- Cancel HYDROPAC 1821/08 and this msgcancelled by · 2008-09-21
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.