Exercises

Gunnery exercises 021800Z to 022359Z apr within 12 miles of 55-47N 171-24W

Bering Sea · NAVAREA XII 163/09

What this record establishes

Archived notice · 2009-04-03 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) · CCGD17 110/09 301800Z MAR 09.. Issued 2009-03-30 20:39Z. 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
Bering Sea. The parsed report position is 55.783, -171.400 with a 12.0 nm radius. 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 Bering Sea →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2009-04-02 18:00Z2009-04-02 23:59Z—5 h 59

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

issued
2009-03-30 20:39Z
status
Archived notice
self-cancels
2009-04-03 00:59Z
authority
CCGD17 110/09 301800Z MAR 09.
NAVAREA
NAVAREA XII
sea
Bering Sea
position
55.783, -171.400 · r 12.0 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. GUNNERY EXERCISES 021800Z TO 022359Z APR
   WITHIN 12 MILES OF 55-47N 171-24W.
2. CANCEL THIS MSG 030059Z APR.

Reading this warning

Gunnery and live firing
Naval or coastal guns firing into a sea area for practice, at stated times.
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.
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.
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

101 within 180 nm since 2002 · 0 in the last 12 months · 0 listed in force now

02
05
10
15
20
24

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 23:20Z; 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.