Surveys

Underwater operations 240700Z to 260700Z oct by M/V discovery in 27-52N 013-32W

HYDROLANT 2051/09

issued
2009-10-24 05:06Z
status
cancelled 2009-10-26 08:00Z (archive)
self-cancels
2009-10-26 08:00Z
cancels
HYDROLANT 2050/09
authority
NAVAREA II 281/09 232119Z OCT 09.
sea
North Atlantic Ocean
position
27.867, -13.533
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 240700Z TO 260700Z OCT
   BY M/V DISCOVERY IN 27-52N 013-32W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2050/09(37).
3. CANCEL THIS MSG 260800Z OCT.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2009-10-24 07:00Z2009-10-26 07:00Z48 h

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

This area · survey operations

35 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
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24

Season · when survey operations happen here

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F
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A
M
J
J
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Worldwide now

86 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.