Surveys

Underwater operations in progress until further notice by M/V colonel templer in areas between: a. 50-10N…

HYDROLANT 1398/99

issued: 1999-07-07 08:10Z
status: cancelled 1999-07-16 17:23Z (archive)
authority: WZ 1226/99 070643Z JUL 99
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY M/V COLONEL TEMPLER IN AREAS BETWEEN:
A. 50-10N 50-40N AND 000-20E 001-00W.
B. 50-10N 50-40N AND 001-40W 002-40W.
WIDE BERTH REQUESTED.

Timeline

Cancel HYDROLANT 1398/99 and this msg, operations completedcancelled by · 1999-07-16

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.