Surveys

Survey operations 220800Z to 242000Z aug by M/V minibex in area within 20 miles of 47-18.00N 003-42.00W

Bay of Biscay · HYDROLANT 2068/22

What this record establishes

Archived notice · 2022-08-24 21:00Z

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) · AVURNAV BREST 437/22 201106Z AUG 22.. Issued 2022-08-20 11:42Z. 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
Bay of Biscay. The parsed report position is 47.300, -3.700 with a 20.0 nm radius. 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 Bay of Biscay →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2022-08-22 08:00Z2022-08-24 20:00Z—60 h

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

issued
2022-08-20 11:42Z
status
Archived notice
self-cancels
2022-08-24 21:00Z
authority
AVURNAV BREST 437/22 201106Z AUG 22.
issued by
AVURNAV BREST
sea
Bay of Biscay
position
47.300, -3.700 · r 20.0 nm
vessel
M/V MINIBEX · 7 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BAY OF BISCAY.
FRANCE.
DNC 08.
1. SURVEY OPERATIONS 220800Z TO 242000Z AUG
   BY M/V MINIBEX IN AREA WITHIN 20 MILES
   OF 47-18.00N 003-42.00W.
   ONE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 242100Z AUG 22.

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.
Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
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.
Within a radius of
A circular area — every position within a stated distance of a point.
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

388 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
24

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

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 2026-10-02 21:58Z; 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.