Surveys

Underwater operations 16 jul thru 30 nov in areas bound by: a. 51-23-15N 143-51-30E, 51-26-51N 143-49-57E,…

Sea of Okhotsk · Sakhalin · HYDROPAC 2067/20

issued: 2020-07-13 09:25Z
status: cancelled 2020-12-01 00:01Z (archive)
cancels: HYDROPAC 1740/20 HYDROPAC 1910/20
authority: NAVAREA XIII 76/20 130917Z JUL 20.
sea: Sea of Okhotsk
position: 51.450, 143.735
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

SEA OF OKHOTSK.
SAKHALIN.
DNC 24.
1. UNDERWATER OPERATIONS 16 JUL THRU 30 NOV
   IN AREAS BOUND BY:
   A. 51-23-15N 143-51-30E, 51-26-51N 143-49-57E,
      51-27-24N 143-49-42E, 51-31-36N 143-47-51E,
      51-32-14N 143-52-06E, 51-25-41N 143-55-00E,
      51-23-52N 143-55-48E, 51-23-45N 143-55-00E.
   B. 51-25-10N 143-27-24E, 51-26-12N 143-27-03E,
      51-31-36N 143-47-51E, 51-23-15N 143-51-30E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 1740/20, 1910/20.
3. CANCEL THIS MSG 01 DEC 20.

This area · survey operations

124 within 180 nm since 2000 · 2 in the last 12 months · 2 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations 13 jun thru 13 jul by M/V fyodor kovrov in area bound by 51-34-55N 143-24-16E, 51-34-54N…cancels · 2020-06-12
Underwater operations 30 jun thru 20 jul in area bound by 51-34-55N 143-24-16E, 51-34-54N 144-06-13E,…cancels · 2020-06-27
Survey operations 13 jun thru 13 jul by M/V fyodor kovrov in area bound by 51-34-55N 143-24-16E, 51-34-54N…replaced · 2020-06-12
Underwater operations 30 jun thru 20 jul in area bound by 51-34-55N 143-24-16E, 51-34-54N 144-06-13E,…replaced · 2020-06-27

Nearby now · within 120 nm

Underwater operations 01 may thru 31 oct in areas bound by: a. 51-27.95N 143-26.72E, 51-29.25N 143-45.52E,…Surveys · 0.3 nm
Wave rider buoy established in 51-22.54N 144-14.17ENav aids · 19.3 nm
Underwater operations 25 may thru 31 dec in area bound by 51-34.92N 143-24.27E, 51-34.90N 144-06.22E,…Surveys · 22.4 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.