Other

Loran-c station caribou, rates 5930-MASTER and 9960-W, unusable 1200Z to 2000Z daily 16 thru 25 aug

NAVAREA IV 272/04

issued: 2004-08-11 10:40Z
status: cancelled 2004-08-17 11:15Z (archive)
self-cancels: 2004-08-25 21:00Z
authority: COGARD NAVCEN ALEXANDRIA 101341Z AUG 04.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. LORAN-C STATION CARIBOU, RATES 5930-MASTER
   AND 9960-W, UNUSABLE 1200Z TO 2000Z DAILY
   16 THRU 25 AUG.
2. CANCEL THIS MSG 252100Z AUG.

Activity windows · 10 in this warning

opens (UTC)	closes (UTC)	local	length
2004-08-16 12:00Z	2004-08-16 20:00Z	—	8 h
2004-08-17 12:00Z	2004-08-17 20:00Z	—	8 h
2004-08-18 12:00Z	2004-08-18 20:00Z	—	8 h
2004-08-19 12:00Z	2004-08-19 20:00Z	—	8 h
2004-08-20 12:00Z	2004-08-20 20:00Z	—	8 h
2004-08-21 12:00Z	2004-08-21 20:00Z	—	8 h
2004-08-22 12:00Z	2004-08-22 20:00Z	—	8 h
2004-08-23 12:00Z	2004-08-23 20:00Z	—	8 h
… 2 more

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

Timeline

Cancel NAVAREA IV 272/04 and this msg, station restoredcancelled by · 2004-08-17

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

34 other warnings in force · see all

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.