Other

Loran-c stations lessay, rate 6731-MASTER, and sylt, rate 7499-X, unreliable 0800Z to 1900Z daily 31 jan…

HYDROLANT 306/00

issued: 2000-01-27 13:37Z
status: cancelled 2000-01-31 05:30Z (archive)
self-cancels: 2000-02-25 20:00Z
authority: NAVAREA II 30/00 271031Z JAN 00
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. LORAN-C STATIONS LESSAY, RATE 6731-MASTER, AND SYLT,
   RATE 7499-X, UNRELIABLE 0800Z TO 1900Z DAILY 31 JAN THRU 04 FEB
   AND 07 THRU 11 FEB, ALTERNATE 14 THRU 18 AND 21 THRU 25 FEB.
2. CANCEL THIS MSG 252000Z FEB.

Activity windows · 5 in this warning

opens (UTC)	closes (UTC)	local	length
2000-01-31 08:00Z	2000-01-31 19:00Z	—	11 h
2000-02-01 08:00Z	2000-02-01 19:00Z	—	11 h
2000-02-02 08:00Z	2000-02-02 19:00Z	—	11 h
2000-02-03 08:00Z	2000-02-03 19:00Z	—	11 h
2000-02-04 08:00Z	2000-02-04 19:00Z	—	11 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 02 feb by M/V cgg alize towing 5400 meter long cable in area between 23-07S…cancelled by · 2000-01-31

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.