Nav aids

Alaska-south Coast

Gulf of Alaska · NAVAREA XII 33/12

What this record establishes

Archived notice · 2012-02-18 10:44Z

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) · COGARD NAVCEN DGPS 77/12 151136Z FEB 12.. Issued 2012-02-15 12:47Z. 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: Gulf of Alaska. The parsed report position is 57.618, -152.193. 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 Gulf of Alaska →

issued: 2012-02-15 12:47Z
status: Archived notice
authority: COGARD NAVCEN DGPS 77/12 151136Z FEB 12.
NAVAREA: NAVAREA XII
issued by: COGARD NAVCEN
sea: Gulf of Alaska
position: 57.618, -152.193
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ALASKA-SOUTH COAST.
CHART 16580
KODIAK DGPS STATION 57-37.1N 152-11.6W UNRELIABLE.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
GNSS / GPS: Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
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.

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

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

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

Weather fax services off air at uscg remote communication facility kodiak (j) 57-46.00N 152-34.00WNav aids · 14.9 nm

Worldwide in the collected sources

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

Record snapshot 2026-10-02 02:47Z; 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.