Nav aids

Potato point dgps station 61-03.4N 146-41.8W unusable until further notice

Gulf of Alaska · NAVAREA XII 315/19

What this record establishes

Archived notice · 2019-07-26 12:56Z

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 CYBERCOM 171/19 201805Z JUL 19.. Issued 2019-07-20 19:43Z. 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 61.057, -146.697. 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
2019-07-20 19:43Z
status
Archived notice
authority
COGARD CYBERCOM 171/19 201805Z JUL 19.
NAVAREA
NAVAREA XII
issued by
COGARD CYBERCOM
sea
Gulf of Alaska
position
61.057, -146.697
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF ALASKA.
ALASKA.
CHART 16700.
POTATO POINT DGPS STATION 61-03.4N 146-41.8W
UNUSABLE UNTIL FURTHER NOTICE.

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.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.

All warning terms →

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

07
10
15
19

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

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

Record snapshot 2026-10-03 12:26Z; 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.