Exercises

Hazardous operations 200900Z to 211900Z sep in areas between: a. 23-35.0S 23-15.0S and 042-51.5W 042-29.8W

Western South Atlantic · Brazil-south Coast · HYDROLANT 2969/18

issued: 2018-09-19 22:25Z
status: cancelled 2018-09-21 20:00Z (archive)
self-cancels: 2018-09-21 20:00Z
cancels: HYDROLANT 2924/18
authority: NAVAREA V COASTAL S 699/18 192109Z SEP 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTH COAST.
DNC 01.
1. HAZARDOUS OPERATIONS 200900Z TO 211900Z SEP
   IN AREAS BETWEEN:
   A. 23-35.0S 23-15.0S AND 042-51.5W 042-29.8W.
   B. 23-35.0S 23-15.0S AND 043-13.5W 042-51.5W.
2. CANCEL HYDROLANT 2924/18.
3. CANCEL THIS MSG 212000Z SEP 18.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2018-09-20 09:00Z	2018-09-21 19:00Z	—	34 h

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 210900Z to 221900Z sep in area between: a. 23-35.0S 23-15.0S and 042-51.5W 042-29.8Wcancels · 2018-09-16
Hazardous operations 210900Z to 221900Z sep in area between: a. 23-35.0S 23-15.0S and 042-51.5W 042-29.8Wreplaced · 2018-09-16

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.