Missiles

Hazardous operations, rocket launching 220725Z to 221220Z jun, alternate 230721Z to 231216Z, 240718Z to…

North Atlantic Ocean · HYDROLANT 1376/23

What this record establishes

Archived notice · 2023-06-22 11:57Z

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) · EASTERN RANGE 0/23 210637Z JUN 23.. Issued 2023-06-21 08:40Z. 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 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. HYDROLANT 1333/232023-06-16 · Archived notice
  2. NAVAREA IV 660/232023-06-16 · Archived notice
  3. HYDROLANT 1376/23 · this notice2023-06-21 · Archived notice
  4. NAVAREA IV 682/232023-06-21 · Archived notice
Compare all 4 notices, changes and original texts →

Current notices and reporting history in the North Atlantic Ocean →

Activity windows · 7 in this warning

opens (UTC)closes (UTC)locallength
2023-06-22 07:25Z2023-06-22 12:20Z—4 h 55
2023-06-23 07:21Z2023-06-23 12:16Z—4 h 55
2023-06-24 07:18Z2023-06-24 12:13Z—4 h 55
2023-06-25 07:14Z2023-06-25 12:09Z—4 h 55
2023-06-26 07:10Z2023-06-26 12:05Z—4 h 55
2023-06-27 07:06Z2023-06-27 12:01Z—4 h 55
2023-06-28 07:02Z2023-06-28 11:57Z—4 h 55

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

issued
2023-06-21 08:40Z
status
Archived notice
self-cancels
2023-06-28 12:57Z
authority
EASTERN RANGE 0/23 210637Z JUN 23.
issued by
EASTERN RANGE
sea
North Atlantic Ocean
position
21.471, -40.777
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   220725Z TO 221220Z JUN, ALTERNATE
   230721Z TO 231216Z, 240718Z TO 241213Z,
   250714Z TO 251209Z, 260710Z TO 261205Z,
   270706Z TO 271201Z AND 280702Z TO 281157Z JUN
   IN AREAS BOUND BY:
   A. 28-34.65N 080-34.37W, 28-36.00N 080-31.00W,
      28-35.00N 080-14.00W, 28-33.00N 079-56.00W,
      28-32.00N 079-52.00W, 28-30.00N 079-52.00W,
      28-28.00N 080-15.00W, 28-28.00N 080-26.00W,
      28-29.29N 080-32.46W, 28-29.61N 080-32.62W.
   B. 27-59.00N 072-24.00W, 28-21.00N 072-23.00W,
      28-12.00N 070-26.00W, 27-51.00N 070-27.00W.
   C. 21-57.00N 043-28.00W, 23-13.00N 043-02.00W,
      20-06.00N 034-05.00W, 18-55.00N 034-36.00W.
2. CANCEL HYDROLANT 1333/23.
3. CANCEL THIS MSG 281257Z JUN 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.
Rocket launching
The areas where spent rocket stages, boosters and fairings are expected to fall after a launch, with the launch window.
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.
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 · missile & rocket hazards

19 within 180 nm since 2016 · 0 in the last 12 months · 0 listed in force now

16
20
23

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

6 missile & rocket hazards listed in force · see all

Record snapshot 2026-10-02 18:23Z; 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.