Exercises

Hazardous operations 1126Z to 1829Z daily 15 dec thru 15 jan 10 in area bound by 88-09N 173-13W, 88-50N…

Arctic Ocean · HYDROPAC 2325/09

What this record establishes

Archived notice · 2009-12-18 18:48Z

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) · MARINE GUYANE 15/09 102041Z DEC 09.. Issued 2009-12-11 10:21Z. 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
Arctic 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.

Current notices and reporting history in the Arctic Ocean →

Activity windows · 32 in this warning

opens (UTC)closes (UTC)locallength
2009-12-15 11:26Z2009-12-15 18:29Z—7 h 03
2009-12-16 11:26Z2009-12-16 18:29Z—7 h 03
2009-12-17 11:26Z2009-12-17 18:29Z—7 h 03
2009-12-18 11:26Z2009-12-18 18:29Z—7 h 03
2009-12-19 11:26Z2009-12-19 18:29Z—7 h 03
2009-12-20 11:26Z2009-12-20 18:29Z—7 h 03
2009-12-21 11:26Z2009-12-21 18:29Z—7 h 03
2009-12-22 11:26Z2009-12-22 18:29Z—7 h 03
… 24 more

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

issued
2009-12-11 10:21Z
status
Archived notice
self-cancels
2010-01-15 19:29Z
authority
MARINE GUYANE 15/09 102041Z DEC 09.
issued by
COMAR GUYANE
sea
Arctic Ocean
position
88.143, -43.906
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 1126Z TO 1829Z DAILY
   15 DEC THRU 15 JAN 10 IN AREA BOUND BY
   88-09N 173-13W, 88-50N 170-16E,
   87-43N 081-40W, 87-18N 097-41W.
2. CANCEL HYDROPAC 2291/09.
3. CANCEL THIS MSG 151929Z JAN 10.

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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
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 →

Collected reports in this area · military exercises

2 within 180 nm since 2009 · 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

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

28 military exercises listed in force · see all

Record snapshot 2026-10-02 14:32Z; 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.