Surveys

Bottom scientific moorings established thru aug 09: a. top float 125 meters ACW07-1 in 76-32.057N 090-28.450W

The Northwestern Passages · HYDROARC 8/08

What this record establishes

Archived notice · 2009-09-01 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) · LEHNERT EMAIL 041539Z SEP 08.. Issued 2008-09-05 02:14Z. 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 Northwestern Passages. The parsed report position is 76.537, -90.428. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the The Northwestern Passages →

issued
2008-09-05 02:14Z
status
Archived notice
authority
LEHNERT EMAIL 041539Z SEP 08.
issued by
LEHNERT EMAIL
sea
The Northwestern Passages
position
76.537, -90.428
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. BOTTOM SCIENTIFIC MOORINGS ESTABLISHED THRU AUG 09:
   A. TOP FLOAT 125 METERS ACW07-1 IN 76-32.057N 090-28.450W.
   B. TOP FLOAT 193 METERS ACW07-3 IN 76-32.405N 090-22.928W.
2. CANCEL THIS MSG 01 SEP 09.

Reading this warning

Scientific mooring
Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
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.

All warning terms →

Collected reports in this area · survey operations

4 within 180 nm since 2008 · 0 in the last 12 months · 0 listed in force now

08
10
15
20
23

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

50 survey operations listed in force · see all

Record snapshot 2026-09-24 23:11Z; 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.