Nav aids

Loran-c station seneca, rates 9960-MASTER and 8970-X, off air 121200Z to 121600Z sep

NAVAREA IV 377/03

issued: 2003-09-09 06:50Z
status: cancelled 2003-09-12 17:00Z (archive)
self-cancels: 2003-09-12 17:00Z
cancels: NAVAREA IV 325/03
authority: COGARD NAVCEN 051655Z SEP 03; CANHYDROLANT 647/03 081615Z SEP 03
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. LORAN-C STATION SENECA, RATES 9960-MASTER AND 8970-X,
   OFF AIR 121200Z TO 121600Z SEP.
2. CANCEL NAVAREA IV 325/03(14).
3. CANCEL THIS MSG 121700Z SEP.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2003-09-12 12:00Z	2003-09-12 16:00Z	—	4 h

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

Timeline

Seismic survey in progress until further notice by M/V gsi admiral towing two 6500 meter long cables in area…cancels · 2003-08-06
Seismic survey in progress until further notice by M/V gsi admiral towing two 6500 meter long cables in area…replaced · 2003-08-06

Nearby now · within 120 nm

Nothing else in force 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.