Exercises

Hazardous operations 162200Z to 170100Z and 170300Z to 170700Z sep in area bound by 51-13N 153-28E, 51-48N…

HYDROPAC 947/99

issued
1999-09-14 15:32Z
status
cancelled 1999-09-17 08:00Z (archive)
self-cancels
1999-09-17 08:00Z
authority
NAVAREA XIII 022/99 141321Z SEP 99
sea
North Pacific Ocean
position
51.523, 158.849
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 162200Z TO 170100Z AND
   170300Z TO 170700Z SEP IN AREA BOUND BY 51-13N 153-28E,
   51-48N 158-23E, 52-53N 158-42E, 53-09N 159-24E,
   52-21N 160-52E, 50-57N 161-38E, 50-28N 160-29E.
2. CANCEL THIS MSG 170800Z SEP.

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
1999-09-16 22:00Z1999-09-17 01:00Z3 h
1999-09-17 03:00Z1999-09-17 07:00Z4 h

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

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

99
00
05
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15
20
22

Season · when military exercises happen here

J
F
M
A
M
J
J
A
S
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N
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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.