Nav aids

GPS satellite system

Eastern North Pacific · California · NAVAREA XII 263/15

issued
2015-08-02 09:55Z
status
cancelled 2015-08-14 00:59Z (archive)
self-cancels
2015-08-14 00:59Z
authority
COMCOGARD SECTOR SAN DIEGO 81/15 020849Z AUG 15.
sea
North Pacific Ocean
position
31.692, -118.458 · r 172.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH PACIFIC.
CALIFORNIA.
GPS SATELLITE SYSTEM.
1. GPS UNRELIABLE UNTIL 021230Z, 072000Z TO 072359Z AUG
   AND 2000Z TO 2359Z DAILY 11 THRU 13 AUG
   WITHIN 172 MILES OF 31-41.5N 118-27.5W.
2. CANCEL THIS MSG 140059Z AUG 15.

Activity windows · 4 in this warning

opens (UTC)closes (UTC)locallength
2015-08-07 20:00Z2015-08-07 23:59Z3 h 59
2015-08-11 20:00Z2015-08-11 23:59Z3 h 59
2015-08-12 20:00Z2015-08-12 23:59Z3 h 59
2015-08-13 20:00Z2015-08-13 23:59Z3 h 59

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

This area · aids-to-navigation notices

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

98
00
05
10
15
20
24

Season · when aids-to-navigation notices happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

193 aids-to-navigation notices in force · see all

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.