Nav aids

The US Coast Guard remote communication facility at Kodiak, Alaska has unreliable high and medium frequency transmissions from 1600 to 0030 UTC daily September 23 to 25.

Gulf of Alaska · NAVAREA XII 654/26

What this record establishes

Cancelled notice · 2026-09-23 14:45Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates
NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-09-22 19:45Z. First collected 2026-09-23 15:32Z; last seen in collection 2026-09-24 11:47Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Gulf of Alaska. The parsed report position is 57.767, -152.567. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Gulf of Alaska →

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2026-09-23 16:00Z2026-09-24 00:30Z—8 h 30
2026-09-24 16:00Z2026-09-25 00:30Z—8 h 30
2026-09-25 16:00Z2026-09-26 00:30Z—8 h 30

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

issued
2026-09-22 19:45Z
status
Cancelled notice
self-cancels
2026-09-25 01:30Z
NAVAREA
NAVAREA XII
sea
Gulf of Alaska
position
57.767, -152.567
source
NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-23 15:32Z

Original warning text

NORTH PACIFIC.
ALASKA.
1. USCG REMOTE COMMUNICATION FACILITY
   KODIAK 57-46.00N 152-34.00W HF AND MF
   TRANSMIT CAPABILITIES UNRELIABLE
   1600Z TO 0030Z DAILY 23 THRU 25 SEP.
2. CANCEL NAVAREA XII 259/25.
3. CANCEL THIS MSG 250130Z SEP 26.

Reading this warning

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.
Inoperative / unreliable / off air
An aid or radio service is not working as charted or published.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
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 · aids-to-navigation notices

186 within 180 nm since 2001 · 2 in the last 12 months · 1 listed in force now

01
05
10
15
20
25
26

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

Worldwide in the collected sources

163 aids-to-navigation notices listed in force · see all

Record snapshot 2026-09-24 11:58Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.