Surveys

Survey operations 10 aug thru 10 oct by M/V davidson, M/V R2, M/V D2, and M/V ua in area bound by 58-00.606N…

The Coastal Waters of Southeast Alaska and British Columbia · NAVAREA XII 183/07

What this record establishes

Archived notice · 2007-10-11 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) · CCGD17 LNM 30/07 JUL 07.. Issued 2007-07-31 13:01Z. 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: The Coastal Waters of Southeast Alaska and British Columbia. 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 The Coastal Waters of Southeast Alaska and British Columbia →

issued: 2007-07-31 13:01Z
status: Archived notice
authority: CCGD17 LNM 30/07 JUL 07.
NAVAREA: NAVAREA XII
sea: The Coastal Waters of Southeast Alaska and British Columbia
position: 57.448, -134.726
vessels: M/V DAVIDSON M/V UA
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS 10 AUG THRU 10 OCT
   BY M/V DAVIDSON, M/V R2, M/V D2, AND M/V UA
   IN AREA BOUND BY
   58-00.606N 134-55.869W, 58-00.561N 134-46.062W,
   56-56.138N 134-30.370W, 56-56.138N 134-43.271W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 11 OCT.

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.
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 · survey operations

1 within 180 nm since 2007 · 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

56 survey operations listed in force · see all

Record snapshot 2026-10-03 18:42Z; 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.