Surveys

Survey operations 050400Z thru 170500Z nov by M/V atlantis with submersible alvin in areas within: a. 60…

Western North Atlantic · Puerto Rico · NAVAREA IV 990/21

issued: 2021-10-30 13:29Z
status: cancelled 2021-11-09 13:24Z (archive)
self-cancels: 2021-11-17 06:00Z
authority: NATIONAL DEEP SUBMERGENCE FACILITY 301317Z OCT 21.
sea: North Atlantic Ocean
position: 25.037, -64.993
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
PUERTO RICO.
1. SURVEY OPERATIONS 050400Z THRU 170500Z NOV
   BY M/V ATLANTIS WITH SUBMERSIBLE ALVIN
   IN AREAS WITHIN:
   A. 60 MILES OF 30-00N 064-08W.
   B. 20 MILES OF 27-45N 064-30W.
   C. 20 MILES OF 24-56N 064-44W.
   D. 20 MILES OF 22-52N 065-33W.
   E. 60 MILES OF 19-38N 066-03W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 170600Z NOV 21.

This area · survey operations

1 within 180 nm since 2021 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations 110400Z to 180500Z nov by M/V atlantis with submersible alvin in area within 110 miles of…cancelled by · 2021-11-09

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.