Exercises
Hazardous operations 0435Z to 0614Z daily 19 thru 21 apr in areas bound by: a. 35-40N 123-30W, 36-23N…
NAVAREA XII 113/99
- issued
- 1999-04-14 08:10Z
- status
- cancelled 1999-04-15 00:00Z (archive)
- self-cancels
- 1999-04-21 07:14Z
- sea
- North Pacific Ocean
- position
- 29.467, -124.537
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0435Z TO 0614Z DAILY 19 THRU 21 APR IN AREAS BOUND BY: A. 35-40N 123-30W, 36-23N 123-20W, 36-16N 122-31W, 35-32N 122-41W. B. 28-34N 125-28W, 30-36N 125-01W, 30-22N 123-36W, 28-20N 124-04W. C. 19-54N 127-20W, 23-44N 126-34W, 23-29N 125-12W, 19-40N 126-01W. D. 04-58S 132-07W, 00-24S 131-13W, 00-34S 130-26W, 05-07S 131-19W. 2. CANCEL THIS MSG 210714Z APR.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-04-19 04:35Z | 1999-04-19 06:14Z | — | 1 h 39 |
| 1999-04-20 04:35Z | 1999-04-20 06:14Z | — | 1 h 39 |
| 1999-04-21 04:35Z | 1999-04-21 06:14Z | — | 1 h 39 |
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
39 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
20
23
- Hazardous operations 1237Z to 1448Z daily 25 thru 29 apr in areas bound by: a. 33-41.00N 120-35.00W,…2023-04-21
- Hazardous operations 310500Z to 310630Z aug, alternate 0500Z to 0630Z daily 01 thru 04 sep in areas bound…2022-08-26
- Hazardous operations 270500Z to 270630Z aug, alternate 0500Z to 0630Z daily 28 thru 31 aug in areas bound…2022-08-22
- Hazardous operations 1659Z to 2229Z daily 21 thru 24 jul in areas bound by: a. 33-29.00N 120-39.00W,…2022-07-16
- Hazardous operations 110030Z to 110639Z jul, alternate 0030Z to 0639Z daily 12 thru 15 jul in areas bound…2022-07-06
- Hazardous operations 122000Z to 130100Z jul, alternate 142000Z to 150100Z jul in area bound by 33-14N…2021-07-07
Season · when military exercises happen here
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M
A
M
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J
A
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month of issue, all years in the archive
Timeline
- Cancel NAVAREA XII 113/99 and this msgcancelled by · 1999-04-15
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.