Missile operations 0001Z to 1000Z daily 28 apr thru 21 may in areas bound by: a. 45-30.00N 006-39.00W,…
North Atlantic Ocean · HYDROLANT 1140/21
What this record establishes
Archived notice · 2021-04-29 13:43Z
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 242331Z APR 21.. Issued 2021-04-25 00:05Z. 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
- Missile operations 0001Z to 1000Z daily 28 apr thru 21 may in areas bound by: a. 45-30N 006-39W, 44-35N…cancelled by this notice
- Cancel HYDROLANT 1140/21 and this msg, operations completedlater cancellation notice
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.
- HYDROLANT 1124/212021-04-23 · Archived notice
- HYDROLANT 1140/21 · this notice2021-04-25 · Archived notice
- NAVAREA IV 337/212021-04-25 · Archived notice
Current notices and reporting history in the North Atlantic Ocean →
Activity windows · 24 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-04-28 00:01Z | 2021-04-28 10:00Z | — | 9 h 59 |
| 2021-04-29 00:01Z | 2021-04-29 10:00Z | — | 9 h 59 |
| 2021-04-30 00:01Z | 2021-04-30 10:00Z | — | 9 h 59 |
| 2021-05-01 00:01Z | 2021-05-01 10:00Z | — | 9 h 59 |
| 2021-05-02 00:01Z | 2021-05-02 10:00Z | — | 9 h 59 |
| 2021-05-03 00:01Z | 2021-05-03 10:00Z | — | 9 h 59 |
| 2021-05-04 00:01Z | 2021-05-04 10:00Z | — | 9 h 59 |
| 2021-05-05 00:01Z | 2021-05-05 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
- 2021-04-25 00:05Z
- status
- Archived notice
- self-cancels
- 2021-05-21 11:00Z
- authority
- NAVAREA II 164/21 242331Z APR 21.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 35.042, -66.883
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH ATLANTIC.
BAY OF BISCAY.
FRANCE.
1. MISSILE OPERATIONS 0001Z TO 1000Z DAILY
28 APR THRU 21 MAY IN AREAS BOUND BY:
A. 45-30.00N 006-39.00W, 44-35.00N 001-28.00W,
44-26.00N 001-16.00W, 44-18.00N 001-17.00W,
44-14.00N 001-36.00W, 45-08.00N 006-45.00W.
B. 47-33.00N 019-01.00W, 47-21.00N 015-35.00W,
45-29.00N 015-33.00W, 45-41.00N 019-12.00W.
C. 35-50.00N 070-08.00W, 35-50.00N 063-38.00W,
34-15.00N 063-38.00W, 34-15.00N 070-08.00W.
D. 46-38.12N 039-31.05W, 45-37.02N 039-15.53W,
45-53.52N 036-47.10W, 46-54.92N 036-59.92W.
2. CANCEL HYDROLANT 1124/21.
3. CANCEL THIS MSG 211100Z MAY 21.
Reading this warning
- 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.
- 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.
- 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.
Collected reports in this area · missile & rocket hazards
20 within 180 nm since 2015 · 1 in the last 12 months · 0 listed in force now
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.
- Hazardous operations, rocket launching 301110Z to 301216Z aug, alternate 311110Z to 311216Z aug, 011107Z to…2026-08-24
- Hazardous operations, rocket launching 210615Z to 211030Z mar, alternate 0615Z to 1030Z daily 22 thru 25 mar…2024-03-16
- Hazardous operations, rocket launching 180045Z to 180430Z jun, alternate 0045Z to 0430Z daily 19 thru 21 jun…2023-06-15
- Hazardous operations, rocket launching 160045Z to 160430Z jun, alternate 0045Z to 0430Z daily 17 thru 21 jun…2023-06-12
- Hazardous operations, rocket launching 152130Z to 160100Z mar, alternate 162130Z to 170100Z, 172130Z to…2023-03-14
- Hazardous operations, rocket launching 151730Z to 152100Z mar, alternate 1730Z to 2100Z daily 16 thru 18 mar…2023-03-13
Month of issue in the collected archive
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 20:36Z; 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.