Exercises

Hazardous operations

Western North Atlantic · French Guiana · HYDROLANT 1899/11

issued
2011-11-14 16:17Z
status
cancelled 2011-11-18 21:00Z (archive)
self-cancels
2011-11-18 21:00Z
authority
AVURNAV CAYENNE 38/11 141520Z NOV 11.
sea
North Atlantic Ocean
position
5.334, -52.760
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
FRENCH GUIANA.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 1100Z TO 2000Z DAILY
   14 THRU 18 NOV IN AREA BOUND BY
   05-22N 052-52W, 05-15N 052-43W,
   05-20N 052-40W, 05-24N 052-48W,
   05-24N 052-49W.
2. CANCEL THIS MSG 182100Z NOV.

Activity windows · 5 in this warning

opens (UTC)closes (UTC)locallength
2011-11-14 11:00Z2011-11-14 20:00Z9 h
2011-11-15 11:00Z2011-11-15 20:00Z9 h
2011-11-16 11:00Z2011-11-16 20:00Z9 h
2011-11-17 11:00Z2011-11-17 20:00Z9 h
2011-11-18 11:00Z2011-11-18 20:00Z9 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

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

99
00
05
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.