Exercises

Gunnery exercises 140700Z to 142000Z sep within 30 miles of 37-40N 042-00W

North Atlantic Ocean · NAVAREA IV 384/10

What this record establishes

Archived notice · 2010-09-14 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) · CTF 69 112103Z SEP 10.. Issued 2010-09-12 07:13Z. 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 37.667, -42.000 with a 30.0 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
2010-09-14 07:00Z	2010-09-14 20:00Z	—	13 h

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

issued: 2010-09-12 07:13Z
status: Archived notice
self-cancels: 2010-09-14 21:00Z
authority: CTF 69 112103Z SEP 10.
NAVAREA: NAVAREA IV
issued by: CTF
sea: North Atlantic Ocean
position: 37.667, -42.000 · r 30.0 nm
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
GUNNERY.
1. GUNNERY EXERCISES 140700Z TO 142000Z SEP
   WITHIN 30 MILES OF 37-40N 042-00W.
2. CANCEL THIS MSG 142100Z SEP.

Reading this warning

Gunnery and live firing: Naval or coastal guns firing into a sea area for practice, at stated times.
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

4 within 180 nm since 2010 · 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

31 military exercises listed in force · see all

Record snapshot 2026-09-30 08:58Z; 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.