Restricted

The following ports are closed to vessel arrivals due to provision of services until further notice: a.…

Sea of Okhotsk · HYDROPAC 2425/21

What this record establishes

Archived notice · 2021-09-03 11:13Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · VLADIVOSTOK 205/21 250911Z AUG 21.. Issued 2021-08-25 09:49Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Sea of Okhotsk. The parsed report position is 52.288, 141.845. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Sea of Okhotsk →

issued: 2021-08-25 09:49Z
status: Archived notice
authority: VLADIVOSTOK 205/21 250911Z AUG 21.
issued by: VLADIVOSTOK
sea: Sea of Okhotsk
position: 52.288, 141.845
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SEA OF OKHOTSK.
TATAR STRAIT.
SAKHALIN.
DNC 24.
THE FOLLOWING PORTS ARE CLOSED TO VESSEL ARRIVALS
DUE TO PROVISION OF SERVICES UNTIL FURTHER NOTICE:
A. ALEKSANDROVSK-SAKHALINSKIY(50-54-00N 142-09-00E).
B. MOSKALVO(53-40-32N 141-32-23E).

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Until further notice: The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.

All warning terms →

Collected reports in this area · restricted areas & port closures

4 within 180 nm since 2011 · 0 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

500 meter safety zone established in: a. 51-27.32N 143-53.20E2022-11-01
Cancel HYDROPAC 2877/112014-05-12
Nga chart 96320 (4TH ed)2011-10-13

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · 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 · 86.4 nm
Wave rider buoy established in 51-22.54N 144-14.17ENav aids · 104.3 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 · 108.5 nm

Worldwide in the collected sources

2 restricted areas & port closures listed in force · see all

Record snapshot 2026-09-29 08:05Z; source collection times vary.

Restricted

Navigation prohibited, exclusion and security zones, ports closed to traffic. All current restricted areas & port closures →

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.