Exercises

Hazardous operations 1200Z to 1500Z and 1800Z to 2030Z daily 11 thru 14 mar in area within five miles of…

North Atlantic Ocean · NAVAREA IV 253/24

What this record establishes

Archived notice · 2024-03-14 21:30Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · AVURNAV LOCAL CAYENNE 1004/24 061100Z MAR 24.. Issued 2024-03-06 14:04Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
North Atlantic Ocean. The parsed report position is 5.300, -52.688 with a 5.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

Activity windows · 8 in this warning

opens (UTC)closes (UTC)locallength
2024-03-11 12:00Z2024-03-11 15:00Z—3 h
2024-03-11 18:00Z2024-03-11 20:30Z—2 h 30
2024-03-12 12:00Z2024-03-12 15:00Z—3 h
2024-03-12 18:00Z2024-03-12 20:30Z—2 h 30
2024-03-13 12:00Z2024-03-13 15:00Z—3 h
2024-03-13 18:00Z2024-03-13 20:30Z—2 h 30
2024-03-14 12:00Z2024-03-14 15:00Z—3 h
2024-03-14 18:00Z2024-03-14 20:30Z—2 h 30

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

issued
2024-03-06 14:04Z
status
Archived notice
self-cancels
2024-03-14 21:30Z
authority
AVURNAV LOCAL CAYENNE 1004/24 061100Z MAR 24.
NAVAREA
NAVAREA IV
issued by
AVURNAV LOCAL CAYENNE
sea
North Atlantic Ocean
position
5.300, -52.688 · r 5.0 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
FRENCH GUIANA.
1. HAZARDOUS OPERATIONS 1200Z TO 1500Z AND
   1800Z TO 2030Z DAILY 11 THRU 14 MAR
   IN AREA WITHIN FIVE MILES OF 05-18.00N 052-41.30W.
2. CANCEL THIS MSG 142130Z MAR 24.

Reading this warning

Hazardous operations
NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
Within a radius of
A circular area — every position within a stated distance of a point.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · military exercises

284 within 180 nm since 1999 · 2 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
25
26

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

17 military exercises listed in force · see all

Record snapshot 2026-09-24 19:20Z; source collection times vary.

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.