Exercises

Hazardous operations in progress until 31 jul in area bound by 36-33N 134-45E, 37-40N 133-25E, 38-33N…

HYDROPAC 587/99

issued: 1999-07-02 05:50Z
status: cancelled 1999-08-01 06:00Z (archive)
authority: CTF SEVEN FOUR 020539Z JUL 99
sea: Japan Sea
position: 37.933, 135.036
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS IN PROGRESS UNTIL 31 JUL IN
   AREA BOUND BY 36-33N 134-45E, 37-40N 133-25E,
   38-33N 134-02E, 39-27N 136-10E, 37-14N 136-10E.
2. CANCEL THIS MSG 01 AUG.

This area · military exercises

2 within 180 nm since 1993 · 0 in the last 12 months · 0 in force now

Hazardous operations 122200Z to 131000Z jul, alternate 132200Z to 141000Z jul in area bound by 37-17N…1993-07-08

Season · when military exercises happen here

month of issue, all years in the archive

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.