Surveys
Hydrographic survey 0001Z to 2200Z daily 30 jul thru 06 aug in area between 03-56.67S 04-16.13S and…
Brazil-northeast Coast · HYDROLANT 1924/16
- issued
- 2016-07-29 22:08Z
- status
- cancelled 2016-08-06 23:00Z (archive)
- self-cancels
- 2016-08-06 23:00Z
- authority
- NAVAREA V N 616/16 292131Z JUL 16.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTHEAST COAST. DNC 01. 1. HYDROGRAPHIC SURVEY 0001Z TO 2200Z DAILY 30 JUL THRU 06 AUG IN AREA BETWEEN 03-56.67S 04-16.13S AND 032-59.92W 032-43.57W. 2. CANCEL THIS MSG 062300Z AUG 16.
Activity windows · 8 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2016-07-30 00:01Z | 2016-07-30 22:00Z | — | 21 h 59 |
| 2016-07-31 00:01Z | 2016-07-31 22:00Z | — | 21 h 59 |
| 2016-08-01 00:01Z | 2016-08-01 22:00Z | — | 21 h 59 |
| 2016-08-02 00:01Z | 2016-08-02 22:00Z | — | 21 h 59 |
| 2016-08-03 00:01Z | 2016-08-03 22:00Z | — | 21 h 59 |
| 2016-08-04 00:01Z | 2016-08-04 22:00Z | — | 21 h 59 |
| 2016-08-05 00:01Z | 2016-08-05 22:00Z | — | 21 h 59 |
| 2016-08-06 00:01Z | 2016-08-06 22:00Z | — | 21 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
84 survey operations in force · see all
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.