Missiles

Hazardous operations, space debris: a. 161135Z to 161205Z apr, alternate 162000Z to 162030Z apr in area…

Gulf of Mexico · NAVAREA IV 411/23

What this record establishes

Archived notice · 2023-04-15 19:17Z

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) · SPACEX 0/23 131438Z APR 23.. Issued 2023-04-13 15:08Z. 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
Gulf of Mexico. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. NAVAREA IV 400/232023-04-10 · Archived notice
  2. NAVAREA IV 407/232023-04-12 · Archived notice
  3. NAVAREA IV 411/23 · this notice2023-04-13 · Archived notice
  4. NAVAREA IV 420/232023-04-15 · Archived notice
Compare all 4 notices, changes and original texts →

Current notices and reporting history in the Gulf of Mexico →

Activity windows · 7 in this warning

opens (UTC)closes (UTC)locallength
2023-04-15 20:40Z2023-04-15 21:10Z—30 min
2023-04-15 20:45Z2023-04-15 21:15Z—30 min
2023-04-16 11:35Z2023-04-16 12:05Z—30 min
2023-04-16 11:40Z2023-04-16 12:10Z—30 min
2023-04-16 11:45Z2023-04-16 12:15Z—30 min
2023-04-16 19:50Z2023-04-16 20:20Z—30 min
2023-04-16 20:00Z2023-04-16 20:30Z—30 min

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

issued
2023-04-13 15:08Z
status
Archived notice
self-cancels
2023-04-16 21:30Z
authority
SPACEX 0/23 131438Z APR 23.
NAVAREA
NAVAREA IV
issued by
SPACEX
sea
Gulf of Mexico
position
29.811, -86.183
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF MEXICO.
WESTERN NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS:
   A. 161135Z TO 161205Z APR, ALTERNATE
      162000Z TO 162030Z APR IN AREA BOUND BY
      28-51.00N 080-01.00W, 29-02.00N 080-14.00W,
      28-51.00N 080-27.00W, 28-40.00N 080-14.00W.
   B. 161140Z TO 161210Z APR, ALTERNATE
      162000Z TO 162030Z APR IN AREA BOUND BY
      29-48.00N 080-27.00W, 29-59.00N 080-40.00W,
      29-48.00N 080-53.00W, 29-37.00N 080-40.00W.
   C. 161950Z TO 162020Z APR IN AREA BOUND BY
      30-55.00N 080-02.00W, 31-06.00N 080-15.00W,
      30-55.00N 080-28.00W, 30-44.00N 080-15.00W.
   D. 152045Z TO 152115Z APR IN AREA BOUND BY
      29-54.42N 086-10.98W, 29-42.96N 085-57.84W,
      29-31.50N 086-10.98W, 29-42.96N 086-24.12W.
   E. 152040Z TO 152110Z APR, ALTERNATE
      161145Z TO 161215Z APR IN AREA BOUND BY
      28-06.00N 083-41.00W, 28-17.00N 083-54.00W,
      28-06.00N 084-07.00W, 27-55.00N 083-54.00W.
2. CANCEL NAVAREA IV 407/23.
3. CANCEL THIS MSG 162130Z APR 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.
Space debris
An area where parts of a spacecraft or rocket stage are expected to come down at sea, from a launch or a planned re-entry.
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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
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 · missile & rocket hazards

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

99
00
05
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

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

Worldwide in the collected sources

4 missile & rocket hazards listed in force · see all

Record snapshot 2026-10-02 07:00Z; source collection times vary.

Missiles

Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →

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.