Exercises

Hazardous operations 2100Z to 1000Z commencing daily 04 thru 07 jun in area within 25 miles of 31-14-14N…

Western North Pacific · HYDROPAC 2056/18

issued
2018-05-31 11:49Z
status
cancelled 2018-06-08 11:00Z (archive)
self-cancels
2018-06-08 11:00Z
authority
NAVAREA XI 274/18 311135Z MAY 18.
sea
North Pacific Ocean
position
31.237, 144.447 · r 25.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
DNC 12.
1. HAZARDOUS OPERATIONS 2100Z TO 1000Z
   COMMENCING DAILY 04 THRU 07 JUN IN AREA
   WITHIN 25 MILES OF 31-14-14N 144-26-48E.
2. CANCEL THIS MSG 081100Z JUN 18.

Activity windows · 4 in this warning

opens (UTC)closes (UTC)locallength
2018-06-04 21:00Z2018-06-05 10:00Z13 h
2018-06-05 21:00Z2018-06-06 10:00Z13 h
2018-06-06 21:00Z2018-06-07 10:00Z13 h
2018-06-07 21:00Z2018-06-08 10:00Z13 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

131 within 180 nm since 2006 · 0 in the last 12 months · 0 in force now

06
10
15
20
24

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.