Exercises

Hazardous operations

Arabian Sea · HYDROPAC 635/11

What this record establishes

Archived notice · 2011-04-01 00:59Z

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) · USS CARL VINSON 170816Z FEB 11.. Issued 2011-02-27 09:14Z. 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
Arabian Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Arabian Sea →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2011-03-01 00:01Z2011-03-31 23:59Z—743 h 58

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

issued
2011-02-27 09:14Z
status
Archived notice
self-cancels
2011-04-01 00:59Z
authority
USS CARL VINSON 170816Z FEB 11.
issued by
USS CARL VINSON
sea
Arabian Sea
position
21.492, 63.627
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ARABIAN SEA.
PERSIAN GULF.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 010001Z TO 312359Z MAR IN AREAS:
   A. BETWEEN 23-06.0N 24-05.0N AND 060-44.0E 061-16.0E.
   B. BETWEEN 23-00.0N 24-00.0N AND 062-00.0E 063-00.0E.
   C. BOUND BY
      20-50.0N 063-55.0E, 21-45.0N 064-20.0E,
      22-09.0N 063-21.0E, 21-14.0N 062-55.0E.
   D. BETWEEN 26-00.0N 26-20.0N AND 052-23E 052-57E.
   E. BETWEEN 27-20.0N 27-52.0N AND 050-25.0E 051-04.0E.
   F. BETWEEN 26-50.0N 27-10.0N AND 051-27.0E 052-00.0E.
   G. BOUND BY
      29-09.0N 049-46.0E, 29-02.5N 049-46.0E,
      28-52.3N 049-43.6E, 28-30.5N 049-52.3E,
      28-17.1N 050-12.0E, 28-17.3N 050-42.5E.
   H. BOUND BY
      28-16.5N 050-24.3E, 28-17.3N 050-43.2E,
      27-52.2N 051-03.2E, 27-51.3N 050-25.5E.
   I. BETWEEN 25-35.0N 25-55.0N AND 053-12.0E 053-46.0E.
2. CANCEL THIS MSG 010059Z APR.

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

39 within 180 nm since 2003 · 0 in the last 12 months · 0 listed in force now

03
05
10
15
20
25

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

10 military exercises listed in force · see all

Record snapshot 2026-10-03 10:29Z; 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.