Exercises

Hazardous operations

Southern Indian Ocean · HYDROPAC 1888/10

issued: 2010-09-16 16:44Z
status: cancelled 2010-09-21 10:36Z (archive)
self-cancels: 2010-09-24 09:12Z
authority: WESTERN RANGE OP W7666 091556Z SEP 10.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

SOUTHERN INDIAN OCEAN.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 0514Z TO 0812Z DAILY
   21 THRU 24 SEP IN AREA BETWEEN
   47-30S 57-30S AND 135-00E 115-00E.
2. CANCEL THIS MSG 240912Z SEP.

Activity windows · 4 in this warning

opens (UTC)	closes (UTC)	local	length
2010-09-21 05:14Z	2010-09-21 08:12Z	—	2 h 58
2010-09-22 05:14Z	2010-09-22 08:12Z	—	2 h 58
2010-09-23 05:14Z	2010-09-23 08:12Z	—	2 h 58
2010-09-24 05:14Z	2010-09-24 08:12Z	—	2 h 58

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

Timeline

Hazardous operations 0411Z to 0555Z daily 26 and 27 sep in area bound by 48-12S 138-22W, 43-09S 136-36W,…cancelled by · 2010-09-21

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.