Exercises

Hazardous operations 21 thru 26 may in area bound by 21-38.00N 086-36.50W, 21-38.00N 086-44.00W, 21-24.00N…

Caribbean Sea · NAVAREA IV 537/23

What this record establishes

Archived notice · 2023-05-27 00:01Z

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) · MEXICO IV 10/23 161349Z MAY 23.. Issued 2023-05-17 05:14Z. 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
Caribbean Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Caribbean Sea →

issued
2023-05-17 05:14Z
status
Archived notice
self-cancels
2023-05-27 00:01Z
authority
MEXICO IV 10/23 161349Z MAY 23.
NAVAREA
NAVAREA IV
issued by
MEXICO IV
sea
Caribbean Sea
position
21.517, -86.671
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN CARIBBEAN SEA.
YUCATAN CHANNEL.
MEXICO.
1. HAZARDOUS OPERATIONS 21 THRU 26 MAY
   IN AREA BOUND BY
   21-38.00N 086-36.50W, 21-38.00N 086-44.00W,
   21-24.00N 086-44.00W, 21-24.00N 086-36.50W.
2. CANCEL THIS MSG 270001Z MAY 23.

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.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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

72 within 180 nm since 2009 · 0 in the last 12 months · 0 listed in force now

09
10
15
20
24

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

9 military exercises listed in force · see all

Record snapshot 2026-10-03 18:10Z; 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.