Other

Pyrotechnics exercises 131600Z to 131800Z sep within 500 yards of 58-17N 134-24W

The Coastal Waters of Southeast Alaska and British Columbia · NAVAREA XII 226/13

What this record establishes

Archived notice · 2013-09-13 19:00Z

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 JUNEAU 183/13 121817Z SEP 13.. Issued 2013-09-12 20:48Z. 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
The Coastal Waters of Southeast Alaska and British Columbia. The parsed report position is 58.283, -134.400 with a 0.2 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 The Coastal Waters of Southeast Alaska and British Columbia →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2013-09-13 16:00Z2013-09-13 18:00Z—2 h

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

issued
2013-09-12 20:48Z
status
Archived notice
self-cancels
2013-09-13 19:00Z
authority
COMCOGARD SECTOR JUNEAU 183/13 121817Z SEP 13.
NAVAREA
NAVAREA XII
issued by
COMCOGARD SECTOR JUNEAU
sea
The Coastal Waters of Southeast Alaska and British Columbia
position
58.283, -134.400 · r 0.2 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF ALASKA.
ALASKA-SOUTHEAST COAST.
1. PYROTECHNICS EXERCISES 131600Z TO 131800Z SEP
   WITHIN 500 YARDS OF 58-17N 134-24W.
2. CANCEL THIS MSG 131900Z SEP 13.

Reading this warning

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 · other warnings

3 within 180 nm since 2012 · 0 in the last 12 months · 0 listed in force now

12
14

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

21 other warnings listed in force · see all

Record snapshot 2026-10-03 10:03Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.