Surveys

Underwater operations in progress until further notice by M/V discovery within ten miles of 17-45N 022-40W

HYDROLANT 1907/07

issued
2007-11-16 13:18Z
status
cancelled 2007-11-22 08:22Z (archive)
authority
NAVAREA II 417/07 161232Z NOV 07.
sea
North Atlantic Ocean
position
17.750, -22.667 · r 10.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

UNDERWATER OPERATIONS IN PROGRESS UNTIL
FURTHER NOTICE BY M/V DISCOVERY
WITHIN TEN MILES OF 17-45N 022-40W.
WIDE BERTH REQUESTED.

This area · survey operations

3 within 180 nm since 2007 · 0 in the last 12 months · 0 in force now

07
08

Season · when survey operations happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force 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.