Surveys
Hydrographic survey operations 080001Z to 142359Z mar by M/V littlehales in area between 23-41N 23-56N and…
HYDROPAC 172/99
- issued
- 1999-03-04 08:50Z
- status
- cancelled 1999-03-15 00:00Z (archive)
- self-cancels
- 1999-03-15 00:59Z
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROGRAPHIC SURVEY OPERATIONS 080001Z TO 142359Z MAR BY M/V LITTLEHALES IN AREA BETWEEN 23-41N 23-56N AND 035-29E 035-57E. 2. CANCEL THIS MSG 150059Z MAR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-03-08 00:01Z | 1999-03-14 23:59Z | — | 167 h 58 |
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.