Geophysical operations 290001Z aug to 210001Z oct by M/V zephyr-i towing 8500 meter long cable in area bound…
Bering Sea · HYDROPAC 2442/12
What this record establishes
Archived notice · 2012-10-21 01:01Z
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 66/12 260902Z AUG 12.. Issued 2012-08-26 09:39Z. 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
- Bering Sea. 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 1933/12cancelled by this notice
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-08-29 00:01Z | 2012-10-21 00:01Z | — | 1272 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2012-08-26 09:39Z
- status
- Archived notice
- self-cancels
- 2012-10-21 01:01Z
- authority
- NAVAREA XIII 66/12 260902Z AUG 12.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Bering Sea
- position
- 59.207, 165.511
- vessel
- M/V ZEPHYR I · 13 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BERING SEA. RUSSIA. 1. GEOPHYSICAL OPERATIONS 290001Z AUG TO 210001Z OCT BY M/V ZEPHYR-I TOWING 8500 METER LONG CABLE IN AREA BOUND BY 57-50-09N 163-45-28E, 57-58-54N 162-38-42E, 58-05-08N 162-05-14E, 58-28-30N 162-17-45E, 59-03-04N 163-15-11E, 59-51-08N 164-01-18E, 59-44-52N 165-03-02E, 60-10-16N 165-37-38E, 60-18-23N 166-06-28E, 59-44-22N 166-00-13E, 59-47-35N 166-21-25E, 60-10-52N 167-02-39E, 60-25-24N 169-18-59E, 59-51-14N 169-49-25E, 59-41-37N 168-25-39E. FIVE MILE BERTH REQUESTED. 2. CANCEL HYDROPAC 2039/12(62), BUOY REMOVED. 3. CANCEL THIS MSG 210101Z OCT 12.
Reading this warning
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
- Off station / missing buoy
- A buoy that is not in its charted position — dragged, damaged, missing or removed.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · tows
1 within 180 nm since 2012 · 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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
0 tows listed in force · see all
Record snapshot 2026-09-28 11:42Z; source collection times vary.
Towing
Vessels under tow with long or unlit tow lines. All current tows →
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.