Exercises

Hazardous operations

North Atlantic · NAVAREA IV 299/10

What this record establishes

Archived notice · 2010-07-15 18:01Z

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) · SHOM 081635Z JUL 10.. Issued 2010-07-08 16:54Z. 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
North Atlantic. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.

Related notices and cancellation links

Activity windows · 17 in this warning

opens (UTC)closes (UTC)locallength
2010-07-10 07:00Z2010-07-10 13:15Z—6 h 15
2010-07-11 07:00Z2010-07-11 13:15Z—6 h 15
2010-07-12 07:00Z2010-07-12 13:15Z—6 h 15
2010-07-13 07:00Z2010-07-13 13:15Z—6 h 15
2010-07-14 07:00Z2010-07-14 13:15Z—6 h 15
2010-07-15 07:00Z2010-07-15 13:15Z—6 h 15
2010-07-16 07:00Z2010-07-16 13:15Z—6 h 15
2010-07-17 07:00Z2010-07-17 13:15Z—6 h 15
… 9 more

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

issued
2010-07-08 16:54Z
status
Archived notice
self-cancels
2010-07-26 14:15Z
authority
SHOM 081635Z JUL 10.
NAVAREA
NAVAREA IV
issued by
SHOM
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 0700Z TO 1315Z DAILY
   10 THRU 26 JUL IN AREA BETWEEN
   36-00N 39-05N AND 043-35W 047-25W.
2. CANCEL NAVAREA IV 298/10.
3. CANCEL THIS MSG 261415Z JUL.

Reading this warning

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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
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.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

31 military exercises listed in force · see all

Record snapshot 2026-09-29 17:09Z; 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.