Exercises

Hazardous operations 130900Z to 131800Z feb in area within 40 miles of 46-39.76N 009-00.00W

North Atlantic Ocean · HYDROLANT 282/24

What this record establishes

Archived notice · 2024-02-13 19:00Z

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 43/24 092002Z FEB 24.. Issued 2024-02-09 20:23Z. 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: North Atlantic Ocean. The parsed report position is 46.663, -9.000 with a 40.0 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 North Atlantic Ocean →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2024-02-13 09:00Z	2024-02-13 18:00Z	—	9 h

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

issued: 2024-02-09 20:23Z
status: Archived notice
self-cancels: 2024-02-13 19:00Z
authority: AVURNAV BREST 43/24 092002Z FEB 24.
issued by: AVURNAV BREST
sea: North Atlantic Ocean
position: 46.663, -9.000 · r 40.0 nm
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
DNC 08.
1. HAZARDOUS OPERATIONS 130900Z TO 131800Z FEB
   IN AREA WITHIN 40 MILES OF 46-39.76N 009-00.00W.
2. CANCEL THIS MSG 131900Z FEB 24.

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.
Hazardous operations: NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
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.
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 · military exercises

191 within 180 nm since 1999 · 1 in the last 12 months · 1 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

Special operationsExercises · 70.6 nm

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-02 19:51Z; source collection times vary.

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

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.