Exercises
Hazardous operations 0949Z to 1219Z daily 12 thru 16 feb in areas bound by: a. 34-28N 120-40W, 34-29N…
NAVAREA XII 42/99
- issued
- 1999-02-10 07:40Z
- status
- cancelled 1999-02-15 00:00Z (archive)
- self-cancels
- 1999-02-16 13:19Z
- sea
- North Pacific Ocean
- position
- 13.058, -125.961
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0949Z TO 1219Z DAILY 12 THRU 16 FEB IN AREAS BOUND BY: A. 34-28N 120-40W, 34-29N 120-46W, 34-46N 120-40W, 34-45N 120-35W. B. 34-08N 120-58W, 34-33N 120-49W, 34-29N 120-34W, 34-05N 120-43W. C. 30-55N 121-55W, 31-55N 121-39W, 31-50N 121-13W, 30-50N 121-29W. D. 08-36N 127-33W, 14-25N 126-17W, 14-11N 125-10W, 08-22N 126-27W. 2. CANCEL THIS MSG 161319Z FEB.
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-02-12 09:49Z | 1999-02-12 12:19Z | — | 2 h 30 |
| 1999-02-13 09:49Z | 1999-02-13 12:19Z | — | 2 h 30 |
| 1999-02-14 09:49Z | 1999-02-14 12:19Z | — | 2 h 30 |
| 1999-02-15 09:49Z | 1999-02-15 12:19Z | — | 2 h 30 |
| 1999-02-16 09:49Z | 1999-02-16 12:19Z | — | 2 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
37 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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00
05
10
15
20
22
- Hazardous operations: a. 100855Z to 101034Z nov, alternate 0855Z to 1034Z daily 11 and 12 nov in area bound…2022-11-05
- Hazardous operations: a. 010855Z to 011034Z nov, alternate 020855Z to 021034Z nov in area bound by 34-43.00N…2022-10-29
- Hazardous operations: a. 010855Z to 011034Z nov, alternate 020855Z to 021034Z nov in area bound by 34-43.00N…2022-10-27
- Hazardous operations: a. 1741Z to 1914Z daily 27 and 28 sep in area bound by 34-29N 120-28W, 34-17N 120-41W,…2021-09-22
- Hazardous operations 151212Z to 151547Z sep, alternate 1212Z to 1547Z daily 16 thru 18 sep in area bound by…2018-09-10
- Hazardous operations2016-11-06
Season · when military exercises happen here
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F
M
A
M
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A
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 42/99 and this msg, operations canceledcancelled by · 1999-02-15
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.