Missiles

Missile operations 0001Z to 1000Z daily 28 apr thru 21 may in areas bound by: a. 45-30N 006-39W, 44-35N…

North Atlantic Ocean · HYDROLANT 1124/21

What this record establishes

Archived notice · 2021-04-25 00:05Z

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 II 164/21 221526Z APR 21.. Issued 2021-04-23 09:40Z. 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 1124/21 · this notice2021-04-23 · Archived notice
  2. HYDROLANT 1140/212021-04-25 · Archived notice
  3. NAVAREA IV 337/212021-04-25 · Archived notice
Compare all 3 notices, changes and original texts →

Current notices and reporting history in the North Atlantic Ocean →

Activity windows · 24 in this warning

opens (UTC)closes (UTC)locallength
2021-04-28 00:01Z2021-04-28 10:00Z—9 h 59
2021-04-29 00:01Z2021-04-29 10:00Z—9 h 59
2021-04-30 00:01Z2021-04-30 10:00Z—9 h 59
2021-05-01 00:01Z2021-05-01 10:00Z—9 h 59
2021-05-02 00:01Z2021-05-02 10:00Z—9 h 59
2021-05-03 00:01Z2021-05-03 10:00Z—9 h 59
2021-05-04 00:01Z2021-05-04 10:00Z—9 h 59
2021-05-05 00:01Z2021-05-05 10:00Z—9 h 59
… 16 more

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

issued
2021-04-23 09:40Z
status
Archived notice
self-cancels
2021-05-21 11:00Z
authority
NAVAREA II 164/21 221526Z APR 21.
NAVAREA
NAVAREA II · named as the source of this relay
sea
North Atlantic Ocean
position
46.517, -17.343
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
BAY OF BISCAY.
FRANCE.
DNC 08.
1. MISSILE OPERATIONS 0001Z TO 1000Z DAILY
   28 APR THRU 21 MAY IN AREAS BOUND BY:
   A. 45-30N 006-39W, 44-35N 001-28W,
      44-26N 001-16W, 44-18N 001-17W,
      44-14N 001-36W, 45-08N 006-45W.
   B. 47-33N 019-01W, 47-21N 015-35W,
      45-29N 015-33W, 45-41N 019-12W.
2. CANCEL THIS MSG 211100Z MAY 21.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Missile firing
Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
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 · missile & rocket hazards

23 within 180 nm since 2010 · 1 in the last 12 months · 1 listed in force now

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

6 missile & rocket hazards listed in force · see all

Record snapshot 2026-10-02 19:52Z; 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.