Exercises

Hazardous operations

Western North Atlantic · NAVAREA IV 186/12

issued: 2012-04-15 07:10Z
status: cancelled 2012-04-17 04:26Z (archive)
self-cancels: 2012-04-17 17:00Z
cancels: NAVAREA IV 180/12
authority: EASTERN RANGE OP 0212 142245Z APR 12.
sea: North Atlantic Ocean
position: 20.878, -54.209
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 161200Z TO 171600Z APR
   IN AREAS BOUND BY:
   A. 28-53N 075-43W, 28-48N 075-24W,
      28-37N 075-24W, 28-37N 075-40W,
      28-44N 076-17W, 28-57N 076-17W,
      28-56N 076-04W.
   B. 28-15N 073-08W, 27-59N 072-05W,
      27-47N 072-10W, 28-03N 073-12W.
   C. 26-47N 067-07W, 26-14N 065-31W,
      25-28N 063-52W, 25-14N 063-59W,
      25-42N 065-45W, 26-15N 067-21W.
   D. 16-46N 043-26W, 16-51N 043-19W,
      15-04N 040-13W, 14-30N 040-35W,
      16-21N 043-42W.
2. CANCEL NAVAREA IV 180/12.
3. CANCEL THIS MSG 171700Z APR.

Activity windows · 1 in the telegram

opens (UTC)	closes (UTC)	local (UTC)	length
2012-04-16 12:00Z	2012-04-17 16:00Z	Apr 16, 12:00 → Apr 17, 16:00	28 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

38 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

Season · when military exercises happen here

month of issue, all years in the archive

Timeline

Hazardous operationscancels · 2012-04-14
Hazardous operationsreplaced · 2012-04-14
Hazardous operationscancelled by · 2012-04-17

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.