Exercises

Hazardous operations

North Pacific · Mariana Islands · HYDROPAC 3595/11

issued
2011-12-25 23:57Z
status
cancelled 2011-12-29 14:59Z (archive)
self-cancels
2011-12-29 14:59Z
authority
COMCOGARD SECTOR GUAM 687/11 252219Z DEC 11.
sea
North Pacific Ocean
position
16.017, 146.067 · r 10.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH PACIFIC.
MARIANA ISLANDS.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 1400Z TO 1359Z
   COMMENCING DAILY 26 THRU 28 DEC
   WITHIN TEN MILES OF 16-01N 146-04E.
2. CANCEL THIS MSG 291459Z DEC.

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2011-12-26 14:00Z2011-12-27 13:59Z23 h 59
2011-12-27 14:00Z2011-12-28 13:59Z23 h 59
2011-12-28 14:00Z2011-12-29 13:59Z23 h 59

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

1446 within 180 nm since 2002 · 3 in the last 12 months · 1 in force now

02
05
10
15
20
25
26

Season · when military exercises happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · 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.