Hazardous operations 1800Z to 0400Z commencing daily 29 nov thru 07 dec in area bound by 05-46.00S…
South Atlantic Ocean · HYDROLANT 1978/11
What this record establishes
Archived notice · 2011-12-08 05:00Z
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 V E 1097/11 250025Z NOV 11.. Issued 2011-11-25 00:52Z. 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
- South 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
- Hazardous operations 1800Z to 0400Z commencing daily 29 nov thru 07 dec in area bound by 05-46.00S…cancelled by this 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 1920/112011-11-17 · Archived notice
- HYDROLANT 1921/112011-11-17 · Archived notice
- HYDROLANT 1971/112011-11-24 · Archived notice
- HYDROLANT 1972/112011-11-24 · Archived notice
- HYDROLANT 1978/11 · this notice2011-11-25 · Archived notice
- HYDROLANT 2083/112011-12-08 · Archived notice
Current notices and reporting history in the South Atlantic Ocean →
Activity windows · 9 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-11-29 18:00Z | 2011-11-30 04:00Z | — | 10 h |
| 2011-11-30 18:00Z | 2011-12-01 04:00Z | — | 10 h |
| 2011-12-01 18:00Z | 2011-12-02 04:00Z | — | 10 h |
| 2011-12-02 18:00Z | 2011-12-03 04:00Z | — | 10 h |
| 2011-12-03 18:00Z | 2011-12-04 04:00Z | — | 10 h |
| 2011-12-04 18:00Z | 2011-12-05 04:00Z | — | 10 h |
| 2011-12-05 18:00Z | 2011-12-06 04:00Z | — | 10 h |
| 2011-12-06 18:00Z | 2011-12-07 04:00Z | — | 10 h |
| … 1 more | |||
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2011-11-25 00:52Z
- status
- Archived notice
- self-cancels
- 2011-12-08 05:00Z
- authority
- NAVAREA V E 1097/11 250025Z NOV 11.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V E
- sea
- South Atlantic Ocean
- position
- -5.954, -34.311
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTHEAST COAST. MISSILES. 1. HAZARDOUS OPERATIONS 1800Z TO 0400Z COMMENCING DAILY 29 NOV THRU 07 DEC IN AREA BOUND BY 05-46.00S 034-58.72W, 05-25.12S 034-26.78W, 05-16.17S 033-35.55W, 05-26.43S 033-32.62W, 06-49.35S 034-20.25W, 06-37.95S 034-41.38W, 06-31.18S 034-46.17W. 2. CANCEL HYDROLANT 1972/11. 3. CANCEL THIS MSG 080500Z DEC.
Reading this warning
- Missile firing
- Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
- 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.
- 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
43 within 180 nm since 1999 · 3 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 0800Z to 2000Z daily 15 thru 19 sep in area bound by 05-55.28S…2026-09-11
- Hazardous operations, rocket launching 0800Z to 2000Z daily 15 thru 17 sep in area bound by 05-55.28S…2026-09-11
- Hazardous operations, rocket launching 0800Z to 2000Z daily 15 thru 17 sep in area bound by 05-55.28S…2026-09-10
- Hazardous operations, rocket launching 031300Z to 072030Z feb in area bound by 05-53.68S 035-11.15W,…2020-01-29
- Hazardous operations, rocket launching 291300Z to 312030Z jan in area bound by 05-53.68S 035-11.15W,…2020-01-24
- Hazardous operations, rocket launching, 0830Z to 2030Z daily 18 sep thru 27 oct: a. in area bound by…2017-09-15
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
- Odas buoy established in 05-09.46S 035-09.81WNav aids · 69.9 nm
- Odas buoy bravo rn-l temporarily established until 20 oct in 04-53.00S 035-46.01WNav aids · 108.2 nm
Worldwide in the collected sources
4 missile & rocket hazards listed in force · see all
Record snapshot 2026-10-01 23:15Z; 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.