Cable ops

Cable laying operations 110800Z to 111600Z aug by cableship ile de sein along trackline between 70-03.28N…

Chukchi Sea · HYDROARC 161/16

What this record establishes

Archived notice · 2016-08-11 17:00Z

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) · ILE DE SEIN 102322Z AUG 16.. Issued 2016-08-10 23:36Z. 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: Chukchi Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Chukchi Sea →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2016-08-11 08:00Z	2016-08-11 16:00Z	—	8 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued: 2016-08-10 23:36Z
status: Archived notice
self-cancels: 2016-08-11 17:00Z
authority: ILE DE SEIN 102322Z AUG 16.
issued by: ILE DE SEIN
sea: Chukchi Sea
position: 70.063, -166.242
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARCTIC.
CHUKCHI SEA.
ALASKA.
DNC 27.
1. CABLE LAYING OPERATIONS 110800Z TO 111600Z AUG
   BY CABLESHIP ILE DE SEIN ALONG TRACKLINE BETWEEN
   70-03.28N 166-15.37W AND 70-04.23N 166-13.62W.
   ONE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 111700Z AUG 16.

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.
Cable operations: A ship is laying, burying or repairing a submarine cable, usually along a stated route.
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.
Track line joining: Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · cable & pipeline work

10 within 180 nm since 2013 · 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

23 cable & pipeline work listed in force · see all

Record snapshot 2026-10-03 01:20Z; source collection times vary.

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

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.