Exercises

Hazardous operations 231100Z to 242100Z aug within five miles of 32-12.0S 052-03.5W

South Atlantic Ocean · HYDROLANT 1527/05

What this record establishes

Archived notice · 2005-08-24 22:00Z

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) · NAVAREA V 679/05 21 AUG 05; NAVAREA V 681/05 21 AUG 05.. Issued 2005-08-22 05:49Z. 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
South Atlantic Ocean. The parsed report position is -32.200, -52.058 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.

Related notices and cancellation links

Current notices and reporting history in the South Atlantic Ocean →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2005-08-23 11:00Z2005-08-24 21:00Z—34 h

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

issued
2005-08-22 05:49Z
status
Archived notice
self-cancels
2005-08-24 22:00Z
authority
NAVAREA V 679/05 21 AUG 05; NAVAREA V 681/05 21 AUG 05.
NAVAREA
NAVAREA V · named as the source of this relay
sea
South Atlantic Ocean
position
-32.200, -52.058 · r 5.0 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 231100Z TO 242100Z AUG
   WITHIN FIVE MILES OF 32-12.0S 052-03.5W.
2. CANCEL HYDROLANT 1429/05.
3. CANCEL THIS MSG 242200Z AUG.

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.
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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · military exercises

118 within 180 nm since 2003 · 3 in the last 12 months · 2 listed in force now

03
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

Worldwide in the collected sources

30 military exercises listed in force · see all

Record snapshot 2026-09-26 04:22Z; 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.