Nga chart 16013 (30TH ed)
Gulf of Alaska · NAVAREA XII 295/08
What this record establishes
Archived notice · 2008-07-30 14:04Z
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 636/08 280336Z JUL 08.. Issued 2008-07-28 06:19Z. 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 61.054, -146.691. 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
- Prn 21 unusable 311300Z jul to 010100Z auglater cancellation notice
Current notices and reporting history in the Gulf of Alaska →
- issued
- 2008-07-28 06:19Z
- status
- Archived notice
- authority
- COGARD NAVCEN DGPS 636/08 280336Z JUL 08.
- NAVAREA
- NAVAREA XII
- issued by
- COGARD NAVCEN
- sea
- Gulf of Alaska
- position
- 61.054, -146.691
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NGA CHART 16013 (30TH ED). POTATO POINT DGPS STATION 61-03.23N 146-41.48W UNUSABLE.
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.
Collected reports in this area · aids-to-navigation notices
3 within 180 nm since 2007 · 0 in the last 12 months · 0 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
- 601 port ave, seward, ak 99664, USASpills · 98.4 nm
Worldwide in the collected sources
134 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-03 13:13Z; 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.