Exercises

Hazardous operations 0435Z to 0615Z daily 18 and 19 may in areas bound by: a. 35-40N 123-30W, 36-23N…

HYDROPAC 407/99

issued: 1999-05-13 09:30Z
status: cancelled 1999-05-18 08:45Z (archive)
self-cancels: 1999-05-19 07:15Z
position: 16.968, -127.190
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 0435Z TO 0615Z DAILY 18 AND 19 MAY
   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 190715Z MAY.

This area · military exercises

46 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

Hazardous operations 102030Z to 110126Z jan, alternate 2030Z to 0126Z commencing daily 11 and 12 jan in…2018-01-05
Hazardous operations2011-06-04
Hazardous operations2010-11-03
Hazardous operations2010-11-03
Hazardous operations2010-10-28
Hazardous operations2010-10-26

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Cancel HYDROPAC 407/99 and this msg, operations completedcancelled by · 1999-05-18

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.