Exercises

Hazardous operations

North Atlantic Ocean · NAVAREA IV 465/10

What this record establishes

Archived notice · 2010-11-18 14:56Z

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) · EASTERN RANGE OP D5949 091708Z NOV 10.. Issued 2010-11-14 06:00Z. 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 map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the North Atlantic Ocean →

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2010-11-18 23:10Z2010-11-19 03:56Z—4 h 46
2010-11-19 23:06Z2010-11-20 03:52Z—4 h 46
2010-11-20 23:02Z2010-11-21 03:49Z—4 h 47

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

issued
2010-11-14 06:00Z
status
Archived notice
self-cancels
2010-11-21 04:49Z
authority
EASTERN RANGE OP D5949 091708Z NOV 10.
NAVAREA
NAVAREA IV
issued by
EASTERN RANGE OP
sea
North Atlantic Ocean
position
20.967, -43.968
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 182310Z TO 190356Z NOV,
   ALTERNATE 192306Z TO 200352Z
   AND 202302Z TO 210349Z NOV
   IN AREAS BOUND BY:
   A. 28-34N 080-34W, 28-34N 080-33W,
      28-35N 080-22W, 28-34N 080-07W,
      28-28N 079-29W, 28-25N 079-29W,
      28-24N 079-50W, 28-25N 080-23W,
      28-25N 080-32W.
   B. 28-27N 072-30W, 28-13N 070-02W,
      26-40N 070-09W, 26-53N 072-36W.
   C. 23-01N 048-47W, 23-07N 046-31W,
      22-31N 044-21W, 20-14N 039-31W,
      19-15N 039-52W, 20-18N 045-37W,
      21-38N 048-07W, 22-39N 048-57W.
2. CANCEL THIS MSG 210449Z NOV.

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.
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.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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

6 within 180 nm since 2009 · 0 in the last 12 months · 0 listed in force now

09
10

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

9 military exercises listed in force · see all

Record snapshot 2026-10-03 22:14Z; 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.