Nga chart 96320 (4TH ed)
Sea of Okhotsk · HYDROPAC 2877/11
What this record establishes
Archived notice · 2014-05-12 10:26Z
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) · NAVAREA XIII 56/11 130913Z OCT 11.. Issued 2011-10-13 09:57Z. 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 map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROPAC 2877/11later cancellation notice
Current notices and reporting history in the Sea of Okhotsk →
- issued
- 2011-10-13 09:57Z
- status
- Archived notice
- authority
- NAVAREA XIII 56/11 130913Z OCT 11.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 51.446, 143.721
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SAKHALIN-EAST COAST. NGA CHART 96320 (4TH ED). NAVIGATION PROHIBITED IN AREA BOUND BY 51-25-04N 143-25-55E, 51-26-08N 143-25-36E, 51-27-35N 143-50-47E, 51-31-22N 143-48-46E, 51-31-33N 143-50-37E, 51-23-42N 143-54-55E, 51-23-31N 143-53-07E, 51-26-32N 143-51-20E.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Navigation prohibited
- Ships may not enter or pass through the area, or a port is closed to traffic.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
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.
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 · 0.8 nm
- Wave rider buoy established in 51-22.54N 144-14.17ENav aids · 19.8 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 · 22.6 nm
Worldwide in the collected sources
2 restricted areas & port closures listed in force · see all
Record snapshot 2026-10-03 10:39Z; 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.