Exercises
Hazardous operations 0730Z to 1501Z daily 27 thru 31 jul in areas bound by: a. 34-48N 120-59W, 34-49N…
HYDROPAC 1166/01
- issued
- 2001-07-23 22:40Z
- status
- cancelled 2001-07-27 08:25Z (archive)
- self-cancels
- 2001-07-31 16:01Z
- cancels
- HYDROPAC 1150/01HYDROPAC 2062/01
- authority
- PHONE CON VAFB 231845Q
- sea
- North Pacific Ocean
- position
- 31.983, -140.471
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0730Z TO 1501Z DAILY 27 THRU 31 JUL IN AREAS BOUND BY: A. 34-48N 120-59W, 34-49N 120-59W, 34-52N 120-36W, 34-50N 120-36W. B. 34-51N 122-08W, 34-58N 120-54W, 34-40N 120-52W, 34-33N 122-06W. C. 31-28N 143-36W, 32-29N 139-34W, 31-29N 139-13W, 30-29N 143-15W. D. 12-13N 171-22E, 13-10N 172-53E, 12-45N 173-10E, 11-48N 171-38E. 2. CANCEL HYDROPAC 1150/01. 3. CANCEL HYDROPAC 2062/01(51), MSG PROMULGATED IN ERROR. 4. CANCEL THIS MSG 311601Z JUL.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-07-27 07:30Z | 2001-07-27 15:01Z | — | 7 h 31 |
| 2001-07-28 07:30Z | 2001-07-28 15:01Z | — | 7 h 31 |
| 2001-07-29 07:30Z | 2001-07-29 15:01Z | — | 7 h 31 |
| 2001-07-30 07:30Z | 2001-07-30 15:01Z | — | 7 h 31 |
| 2001-07-31 07:30Z | 2001-07-31 15:01Z | — | 7 h 31 |
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
15 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
08
- Hazardous operations 1930Z to 0130Z commencing daily 05 thru 08 dec in areas bound by: a. 34-52N 120-51W,…2008-11-30
- Hazardous operations 1330Z to 1917Z daily 25 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…2007-05-24
- Hazardous operations 1400Z to 1817Z daily 25 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…2007-05-23
- Hazardous operations 1330Z to 1917Z daily 24 thru 29 may in areas bound by: a. 34-52N 120-51W, 34-52N…2007-05-22
- Hazardous operations 0731Z to 1501Z daily 12 thru 14 mar in areas bound by: a. 34-48N 121-02W, 34-49N…2003-03-08
- Hazardous operations 030731Z to 031501Z jun in areas bound by: a. 34-48N 120-59W, 34-49N 120-59W, 34-52N…2002-05-29
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
- Hazardous operations 0730Z to 1501Z daily 26 thru 30 jul in areas bound by: a. 34-48N 120-59W, 34-49N…cancels · 2001-07-20
- A united states military aircraft carrying unexploded ordnance has fallen into the sea inside the area of…cancels · 2001-12-18
- Hazardous operations 0730Z to 1501Z daily 26 thru 30 jul in areas bound by: a. 34-48N 120-59W, 34-49N…replaced · 2001-07-20
- Bombing exercises 0001Z to 1300Z daily 01 thru 31 aug in area bound by 38-25N 128-45E, 38-25N 129-30E,…cancelled by · 2001-07-27
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.