Hydrographic survey in progress until 05 sep in area bound by 57-11.0N 156-38.5E, 57-32.0N 155-22.0E,…
Sea of Okhotsk · HYDROPAC 1340/04
What this record establishes
Archived notice · 2004-09-06 00:00Z
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 27/04 16 AUG 04.. Issued 2004-08-16 21:10Z. 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.
Current notices and reporting history in the Sea of Okhotsk →
- issued
- 2004-08-16 21:10Z
- status
- Archived notice
- authority
- NAVAREA XIII 27/04 16 AUG 04.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 58.079, 153.721
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROGRAPHIC SURVEY IN PROGRESS UNTIL 05 SEP IN AREA BOUND BY 57-11.0N 156-38.5E, 57-32.0N 155-22.0E, 58-46.3N 150-57.5E, 59-07.0N 151-00.5E, 59-33.5N 151-13.5E, 59-33.5N 151-17.5E, 59-07.0N 151-04.5E, 58-48.5N 151-03.0E, 57-32.0N 155-45.0E, 57-13.5N 156-43.5E. 2. CANCEL THIS MSG 06 SEP.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
13 within 180 nm since 2004 · 1 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.
- Survey operations in progress until 25 oct by M/V fyodor kovrov in area bound by 59-06.00N 149-22.70E,…2026-09-16
- Survey operations 15 oct thru 15 dec by M/V nikolay trubyatchinskiy in area bound by 57-48.00N 152-59.00E,…2024-10-12
- Survey operations 17 sep thru 07 nov by M/V spasatel zaborshchikov in areas bound by: a. 51-34.92N…2022-09-15
- Survey operations in progress until 25 dec by academic fersman towing five mile long cable in area bound by…2019-10-31
- Survey operations 31 jul thru 31 oct by M/V academic fersman towing five mile long cable in area bound by…2019-07-29
- Survey operations 31 jul thru 31 aug by M/V academic fersman towing five mile long cable in area bound by…2019-07-28
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 12:09Z; source collection times vary.
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.