Surveys

Underwater operations 172300Z to 222300Z mar by M/V pourquoi pas in areas between: a. 47-20N 47-40N and…

HYDROLANT 531/06

issued: 2006-03-17 16:51Z
status: cancelled 2006-03-23 00:01Z (archive)
self-cancels: 2006-03-23 00:01Z
cancels: HYDROLANT 530/06
authority: NAVAREA II 100/06 171458Z MAR 06.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 172300Z TO 222300Z MAR BY
   M/V POURQUOI PAS IN AREAS BETWEEN:
   A. 47-20N 47-40N AND 008-20W 008-40W.
   B. 47-00N 47-20N AND 009-20W 009-40W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT  530/06.
3. CANCEL THIS MSG 230001Z MAR.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2006-03-17 23:00Z	2006-03-22 23:00Z	—	120 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

Timeline

Underwater operations 19 thru 21 mar by M/V pourquoi pas in vicinity 46-38N 010-20Wcancels · 2006-03-17
Underwater operations 19 thru 21 mar by M/V pourquoi pas in vicinity 46-38N 010-20Wreplaced · 2006-03-17

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.