Surveys

Nga chart 38580 (8TH ed)

Davis Strait · NAVAREA IV 174/11

What this record establishes

Archived notice · 2012-06-01 00:01Z

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) · RICK BOYCE 181537Z MAY 11.. Issued 2011-05-20 11:54Z. 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: Davis Strait. The parsed report position is 60.245, -48.586. 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 Davis Strait →

issued: 2011-05-20 11:54Z
status: Archived notice
authority: RICK BOYCE 181537Z MAY 11.
NAVAREA: NAVAREA IV
issued by: RICK BOYCE
sea: Davis Strait
position: 60.245, -48.586
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

LABRADOR SEA.
GREENLAND-SOUTHWEST COAST.
NGA CHART 38580 (8TH ED).
1. SCIENTIFIC MOORING M1798, TOP FLOAT 150 METERS,
   ESTABLISHED IN 60-14.71N 048-35.13W.
2. CANCEL THIS MSG 01 JUN 12.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
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

1 within 180 nm since 2011 · 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

North american ice service (nais) iceberg bulletin 020001Z octIcebergs · 87.9 nm

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-02 15:31Z; 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.