Hazardous operations 230800Z to 252130Z sep in area bound by 30-15.00S 049-54.50W, 30-15.00S 050-06.75W,…
South Atlantic Ocean · HYDROLANT 1852/26
What this record establishes
Listed in force
The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-09-18 08:41Z. First collected 2026-09-23 15:02Z; last seen in collection 2026-09-23 17:47Z. 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.
Current notices and reporting history in the South Atlantic Ocean →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2026-09-23 08:00Z | 2026-09-25 21:30Z | — | 61 h 30 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2026-09-18 08:41Z
- status
- Listed in force
- self-cancels
- 2026-09-25 22:30Z
- sea
- South Atlantic Ocean
- position
- -30.773, -50.304
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-23 15:02Z
Original warning text
SOUTH ATLANTIC. BRAZIL. 1. HAZARDOUS OPERATIONS 230800Z TO 252130Z SEP IN AREA BOUND BY 30-15.00S 049-54.50W, 30-15.00S 050-06.75W, 31-15.00S 050-42.34W, 31-15.00S 050-26.24W. 2. CANCEL THIS MSG 252230Z SEP 26.
Conditions at the position · now
loading…
MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation
Collected reports in this area · military exercises
163 within 180 nm since 2003 · 1 in the last 12 months · 1 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 290300Z to 292100Z sep in area bound by 32-22.40S 052-12.40W, 32-30.40S 052-14.10W,…2023-09-24
- Hazardous operations 220900Z to 250400Z aug in area bound by 31-28.42S 049-14.03W, 31-13.60S 049-44.45W,…2023-08-17
- Hazardous operations 110900Z to 120400Z in area bound by 31-28.42S 049-14.02W, 31-13.60S 049-44.45W,…2023-08-06
- Hazardous operations 100900Z to 110400Z aug in area bound by 28-29.50S 046-35.63W, 28-12.87S 047-04.53W,…2023-08-06
- Hazardous operations 0900Z to 2130Z daily 31 jul thru 18 aug in area bound by 29-20.53S 049-05.53W,…2023-07-26
- Hazardous operations 290300Z to 291600Z jun in area bound by 32-24.20S 052-04.30W, 32-22.40S 052-14.10W,…2023-06-24
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
18 military exercises listed in force · see all
Record snapshot 2026-09-23 17:48Z; source collection times vary.
Exercises
Gunnery, firing and naval exercise areas. All current military exercises →
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.