Exercises

Gunnery and pyrotechnic exercises 012100Z to 020100Z sep in area within ten miles of 55-54.19N 168-20.24W

Bering Sea · NAVAREA XII 371/17

What this record establishes

Archived notice · 2017-09-02 02:00Z

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) · COMCOGARD SECTOR ANCHORAGE 118/17 312023Z AUG 17.. Issued 2017-08-31 20:47Z. 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 55.903, -168.337 with a 10.0 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
2017-09-01 21:00Z2017-09-02 01:00Z—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
2017-08-31 20:47Z
status
Archived notice
self-cancels
2017-09-02 02:00Z
authority
COMCOGARD SECTOR ANCHORAGE 118/17 312023Z AUG 17.
NAVAREA
NAVAREA XII
issued by
COMCOGARD SECTOR ANCHORAGE
sea
Bering Sea
position
55.903, -168.337 · r 10.0 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BERING SEA.
ALASKA.
1. GUNNERY AND PYROTECHNIC EXERCISES
   012100Z TO 020100Z SEP IN AREA WITHIN
   TEN MILES OF 55-54.19N 168-20.24W.
2. CANCEL THIS MSG 020200Z SEP 17.

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

110 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

31 military exercises listed in force · see all

Record snapshot 2026-09-30 09:55Z; 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.