Surveys
Underwater operations 19 thru 28 apr by M/V yokosuka: a. in area between 22-50N 25-30N and 153-30E 157-30E
Western North Pacific · HYDROPAC 1329/19
- issued
- 2019-04-19 13:31Z
- status
- cancelled 2019-04-29 00:01Z (archive)
- authority
- NAVAREA XI 227/19 181148Z APR 19.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC.
DNC 12.
1. UNDERWATER OPERATIONS 19 THRU 28 APR
BY M/V YOKOSUKA:
A. IN AREA BETWEEN
22-50N 25-30N AND 153-30E 157-30E.
B. ALTERNATE IN AREA BETWEEN
37-20N 38-10N AND 144-20E 145-50E.
WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 29 APR 19.
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.