Exercises

Off Hawaii in the North Pacific, hazardous operations are scheduled from September 17 1700Z to September 18 0300Z within one mile of 21-17.48N 157-59.23W.

North Pacific · Hawaii · NAVAREA XII 635/26

issued: 2026-09-16 21:49Z
status: cancelled 2026-09-17 14:30Z (dropped from inforce)
self-cancels: 2026-09-18 04:00Z
sea: North Pacific Ocean
position: 21.291, -157.987 · r 1.0 nm
source: nga_inforce · first seen 2026-09-18 06:18Z

Original warning text

NORTH PACIFIC.
HAWAII.
1. HAZARDOUS OPERATIONS 171700Z TO 180300Z SEP
   IN AREA WITHIN ONE MILE OF 21-17.48N 157-59.23W.
2. CANCEL THIS MSG 180400Z SEP 26.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2026-09-17 17:00Z	2026-09-18 03:00Z	—	10 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

17 within 180 nm since 1999 · 3 in the last 12 months · 0 in force now

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

14 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.