Surveys

Underwater operations 02 thru 06 may by submersible shinkai 6500 and M/V yokosuka in area bound by 36-00N…

Western North Pacific · HYDROPAC 1325/21

issued
2021-05-01 12:05Z
status
cancelled 2021-05-07 00:01Z (archive)
authority
NAVAREA XI 146/21 011133Z MAY 21.
position
38.000, 149.500
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
DNC 12, DNC 24.
1. UNDERWATER OPERATIONS 02 THRU 06 MAY
   BY SUBMERSIBLE SHINKAI 6500 AND M/V YOKOSUKA
   IN AREA BOUND BY
   36-00N 148-00E, 40-00N 148-00E,
   40-00N 151-00E, 36-00N 151-00E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 07 MAY 21.

This area · survey operations

5 within 180 nm since 2005 · 0 in the last 12 months · 0 in force now

05
10
15
20
21

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

Nearby now · within 120 nm

Worldwide now

73 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.