Exercises

Hazardous operations

Western North Pacific · Mariana Islands · HYDROPAC 3917/15

issued
2015-11-29 08:40Z
status
cancelled 2015-11-30 10:00Z (archive)
self-cancels
2015-11-30 10:00Z
cancels
HYDROPAC 3635/15
authority
COMCOGARD SECTOR GUAM 823/15 282152Z NOV 15 - NAVAREA XV 308/15 CX 290210Z NOV 15.
sea
North Pacific Ocean
position
16.018, 146.060 · r 12.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
MARIANA ISLANDS.
HAZARDOUS OPERATIONS.
DNC 12.
1. HAZARDOUS OPERATIONS 300200Z TO 300900Z NOV
   WITHIN 12 MILES OF 16-01-06N 146-03-35E.
2. CANCEL HYDROPAC 3635/15(22).
3. CANCEL THIS MSG 301000Z NOV 15.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2015-11-30 02:00Z2015-11-30 09:00Z7 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

1451 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

Timeline

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.