Exercises

Hazardous operations 222345Z to 230345Z oct, alternates 2345Z to 0345Z commencing daily 23 thru 27 oct in…

North Atlantic Ocean · NAVAREA IV 916/19

What this record establishes

Archived notice · 2019-10-17 16:56Z

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) · WALLOPS 171312Z OCT 19.. Issued 2019-10-17 13:39Z. 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 37.749, -74.858. 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 · 6 in this warning

opens (UTC)closes (UTC)locallength
2019-10-22 23:45Z2019-10-23 03:45Z—4 h
2019-10-23 23:45Z2019-10-24 03:45Z—4 h
2019-10-24 23:45Z2019-10-25 03:45Z—4 h
2019-10-25 23:45Z2019-10-26 03:45Z—4 h
2019-10-26 23:45Z2019-10-27 03:45Z—4 h
2019-10-27 23:45Z2019-10-28 03:45Z—4 h

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

issued
2019-10-17 13:39Z
status
Archived notice
self-cancels
2019-10-28 04:45Z
authority
WALLOPS 171312Z OCT 19.
NAVAREA
NAVAREA IV
issued by
WALLOPS
sea
North Atlantic Ocean
position
37.749, -74.858
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTC.
VIRGINIA.
MARYLAND.
1. HAZARDOUS OPERATIONS 222345Z TO 230345Z OCT,
   ALTERNATES 2345Z TO 0345Z COMMENCING DAILY
   23 THRU 27 OCT IN AREAS WITHIN:
   A. 6.5 MILES OF 37-49.2N 075-21.7W.
   B. 35 MILES OF 37-40.7N 074-21.3W.
2. CANCEL THIS MSG 280445Z OCT 19.

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.
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

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

99
00
05
10
15
20
23

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 12:04Z; 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.