Nav aids

Nga chart 18000 (8TH ed)

North Pacific Ocean · NAVAREA XII 351/11

What this record establishes

Archived notice · 2011-09-24 21:00Z

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) · CCGD11 597/11 221659Z SEP 11.. Issued 2011-09-22 20:36Z. 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
North Pacific Ocean. The parsed report position is 32.665, -117.243. 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 North Pacific Ocean →

issued
2011-09-22 20:36Z
status
Archived notice
self-cancels
2011-09-24 21:00Z
authority
CCGD11 597/11 221659Z SEP 11.
NAVAREA
NAVAREA XII
sea
North Pacific Ocean
position
32.665, -117.243
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CALIFORNIA.
NGA CHART 18000 (8TH ED).
1. POINT LOMA DGPS STATION 32-39.9N 117-14.6W UNUSABLE
   1600Z TO 2000Z DAILY 23 AND 24 SEP.
2. CANCEL THIS MSG 242100Z SEP.

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.
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

136 within 180 nm since 1998 · 0 in the last 12 months · 1 listed in force now

98
00
05
10
15
20
24

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

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

Record snapshot 2026-10-02 14:31Z; 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.