Exercises

Hazardous operations 2000Z to 0408Z commencing daily 28 feb thru 01 apr in areas: a. within 12 miles of…

Arctic Ocean · HYDROLANT 453/02

What this record establishes

Archived notice · 2002-03-01 12:40Z

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) · COMAR GUYANE CAYENNE 6/02212015Z FEB 02. Issued 2002-02-25 13:20Z. 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 parsed report position is 81.870, -101.010. 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 Arctic Ocean →

Activity windows · 33 in this warning

opens (UTC)closes (UTC)locallength
2002-02-28 20:00Z2002-03-01 04:08Z—8 h 08
2002-03-01 20:00Z2002-03-02 04:08Z—8 h 08
2002-03-02 20:00Z2002-03-03 04:08Z—8 h 08
2002-03-03 20:00Z2002-03-04 04:08Z—8 h 08
2002-03-04 20:00Z2002-03-05 04:08Z—8 h 08
2002-03-05 20:00Z2002-03-06 04:08Z—8 h 08
2002-03-06 20:00Z2002-03-07 04:08Z—8 h 08
2002-03-07 20:00Z2002-03-08 04:08Z—8 h 08
… 25 more

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

issued
2002-02-25 13:20Z
status
Archived notice
self-cancels
2002-04-02 05:08Z
authority
COMAR GUYANE CAYENNE 6/02212015Z FEB 02
issued by
COMAR GUYANE
sea
Arctic Ocean
position
81.870, -101.010
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 2000Z TO 0408Z COMMENCING DAILY
   28 FEB THRU 01 APR IN AREAS:
   A. WITHIN 12 MILES OF COASTLINE BETWEEN
      05-26N 053-00W AND 05-09N 052-37W.
   B. BOUND BY 10-39N 052-09W, 10-33N 051-37W,
      09-40N 051-46W, 09-47N 052-18W.
   C. BOUND BY 11-51N 052-22W, 11-44N 051-29W,
      10-54N 051-36W, 11-00N 052-28W.
   D. BOUND BY 85-47N 105-04W, 83-57N 087-37W,
      83-30N 097-29W, 84-58N 118-54W.
2. CANCEL HYDROLANT 434/02.
3. CANCEL THIS MSG 020508Z 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.
Within a radius of
A circular area — every position within a stated distance of a point.
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.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean 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

4 within 180 nm since 2002 · 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 01:52Z; 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.