Surveys

Underwater operations 261400Z to 281400Z sep in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…

Sea of Okhotsk · Sakhalin · HYDROPAC 3026/23

issued: 2023-09-22 09:30Z
status: cancelled 2023-09-28 15:00Z (archive)
self-cancels: 2023-09-28 15:00Z
cancels: HYDROPAC 3010/23
authority: NAVAREA XIII 120/23 220903Z SEP 23.
position: 46.126, 142.820
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

SEA OF OKHOTSK.
SAKHALIN.
DNC 24.
1. UNDERWATER OPERATIONS 261400Z TO 281400Z SEP
   IN AREA BOUND BY
   46-17.50N 142-33.80E, 46-23.00N 142-51.00E,
   46-19.50N 143-02.00E, 45-55.00N 143-06.30E,
   45-55.00N 142-33.80E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 3010/23.
3. CANCEL THIS MSG 281500Z SEP 23.

This area · survey operations

12 within 180 nm since 2005 · 1 in the last 12 months · 1 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Underwater operations 261400Z to 281400Z sep in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…cancels · 2023-09-21
Underwater operations 261400Z to 281400Z sep in area bound by 46-17.50N 142-33.80E, 46-23.00N 142-51.00E,…replaced · 2023-09-21

Nearby now · within 120 nm

Gunnery exercises 142000Z to 151200Z aug in area bound by 45-33.00N 143-20.00E, 46-04.00N 143-26.00E,…Exercises · 58.9 nm
Missile operations 2000Z to 1200Z daily 10 thru 15 aug in area bound by 46-54.80N 144-08.60E, 47-35.30N…Missiles · 87.3 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.