Nav aids

Loran-c chain lessay, rate 6731-X, off air 100900Z to 131830Z sep and 140500Z to 141230Z sep

HYDROLANT 1562/07

issued: 2007-09-09 11:57Z
status: cancelled 2007-09-11 12:54Z (archive)
self-cancels: 2007-09-14 13:30Z
authority: NAVAREA I 233/07 091015Z SEP 07.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. LORAN-C CHAIN LESSAY, RATE 6731-X, OFF AIR
   100900Z TO 131830Z SEP AND
   140500Z TO 141230Z SEP.
2. CANCEL THIS MSG 141330Z SEP.

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2007-09-10 09:00Z	2007-09-13 18:30Z	—	81 h 30
2007-09-14 05:00Z	2007-09-14 12:30Z	—	7 h 30

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

Timeline

Loran-c chain lessay, rate 6731-MASTER and 7499-X off air 0900Z to 1830Z daily 11 thru 13 sep, and 140500Z…cancelled by · 2007-09-11

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.